WIFI lost when I change application - Networking

I don't know if the good post but I've got WIFI problem on my tablet Polaroid MID 9748 Android 4.2.2 kernel 3.0.36, CPU RK3188
Tell me if I've been moderated.
For example, when I switch from an application to the other as my browser to google play. Then I've to switch my tablet in plane mode in and out for refreshing the WIFI connection for connecting back. The wifi bars are showing me that I'm connecting all the time, but my browser can download any page.
I don't know where this problem is coming from because I'dont have any problem for watching streaming also the wifi card should work fine.
Could be MTU problem? How to check?
Thank for advise

Have you tried to reboot your access point in first place? MTU should be 1500 as default.
Does is happen with other devices ie. laptop?

Hi Ollve,
My laptop has never been disconnected from WiFi. Only my tablet is. I setted a fix IP address for my tablet in my access point. I installed WiFi fixed. This app found when I m disconnected but it didn't restore the connection well. So I've to do it manually.
In hoping may help
Thank for your support.

Related

X10 & Netgear DG834v5 Wifi Connection Problems - Solution

Hello all,
I love my X10, but the frustration with getting it to connect to my Netgear DG834 router was getting to me, so I dedicated an afternoon to working out a solution and I've found one that works for me, so I hope it'll work for you too.
Summary of problem
--------------------
The phone will connect to the Router once, and once only. Any attempt to re-connect to the wifi will result in the phone disconnecting, scanning again, then discinnecting until the user gives up. Nothing will cause the phone to reconnect (telling it to forget the connection for example). The only surefire way to reconnect is to reboot the router each time - not ideal.
Manually adding a Static IP also doesn't work - which is weird as that is how I've solved it, see below.
Scale of problem
----------------
The problem seems to be with the router and not necessarily the phone as it appears to be on a wide range of phones (Hero, Droid, Touch HD etc.). Seeing at the DG834 is the most popular router in the world, and Android is growing all the time, there are a large number of people affected.
However Iphone and Symbian phones appear to be unaffected.
Reason for the problem
-----------------------
Currently unknown, but appears to be something to do with the handshaking procedure when a device asks the router for an address (DHCP) - though as to what I don't know.
Solution
--------
1) Download an app called WiFiStatic from the App Market. WiFiStatic takes each DHCP assigned IP address and stores it in a small database to be re-applied whenever you are back in range of the same Router again. It is not an ideal solution as you may have to re-scan and re-assign if you visit a busy hotspot, but this is a two press function, so it's not that onerous.
2) Turn off your Router. Make sure the WiFi on your phone is off too.
3) With the router off, clear your Remembered WiFi connections (or at the very least the Netgear connection). Once that's done, turn the Router on again and wait until it is full back up again.
4) When the Router is fully operational again, turn on your wifi on the phone and let is scan for and connect to the Netgear Router. You may need to tell it to connect from the Wireless Settings menu on the phone.
5) The phone should now connect to the Router successfully. If it doesn't, repeat the above procedure.
6) With the phone connected to the router, fire up WiFiStatic. Check Auto Switch and Show Visual Prompt if they are not already selected, then Tap Add configuration at the bottom of the screen.
7) The IP address and other settings assigned by your router should be displayed at the top of the screen, at the bottom should be the name of your router and its MAC address. If not then tap Menu > Generate to populate the form.
8)Tap Menu > Done when everything is ok.
That's it. Now when you move into range of your Netgear, you should get connected, though it does take a bit longer than normal (the Router still wants to assign an address first before accepting the static IP). You can speed this up by changing the Device table on the router to always keep the Phone's static IP open.
This shouldn't work as all my other attempts with Static IP failed, but I've had five days now of instant connection to WiFi at home, so something has been freed up.
i can not tell you how seeing this post was like finding bin ladin in the white house. Prob would have found him twice trying to solve this WIFI problem. And the strange thing is this is the 1st phone i have had that there are so few posts about it...is everyone on that icrack? scary. cheers to you...
Thank you for posting this.
I tried this with my and it seems it doesn't make a difference for me. I still can only connect once to the router and for me to connect again i have to restart the router again. Am i missing something?
Problem is when I connect for the first time at home it works then when i leave to the office i use the wifi there and never have any problems there but when i get back home it doesn't work. Do you guys switch the wifi off manually when you are not using it?
one thing that is almost always overlooked is updating the router's firmware. this usually solves a number of issues. I dont know about netgear but it's worth a try to update
bimmerboii said:
one thing that is almost always overlooked is updating the router's firmware. this usually solves a number of issues. I dont know about netgear but it's worth a try to update
Click to expand...
Click to collapse
That was one of the first thing i tried....it seems i have the latest firmware.
Is this an issue for a lot of people then? Ive one of these routers and never had an issue connecting any phones to it. Had 3 nokias and 3 different android phones, currently on the x10, and they all connected fine everytime.
i have some troubles in x10i wifi connection and holp someone helps me~
------------------------------
im chinese, my x10i have had the lastest firmware but the phone cant connect the AP which set the channel is "13". but i used it long before and suddy just one day i find it dosnt work~ it cant scan(and find) the AP anymore !
then i have tried and config the router in another wifi channel(just like 1,8,11..) and the phone can scan and refind the AP.
i have tried to reload the phone's default setting,but it dont work(in channel 13)ToT
---------------------------
someone tell me why? and someone give me some suggest?
in china , lots of router's wifi channel are using "13" by default(factory setting);so, if my x10i cant works in that channel means i couldnt find the "opend APs" which in the public place(like KFC~~)
THX to help~
StampedChipmunk said:
Hello all,
I love my X10, but the frustration with getting it to connect to my Netgear DG834 router was getting to me, so I dedicated an afternoon to working out a solution and I've found one that works for me, so I hope it'll work for you too.
<snip>.
Click to expand...
Click to collapse
Thank you! I have spent three days trying to get my phone to re-connect to a DG834v5.
Your solution has worked! I had gone as far as reserving an IP address on the router and linked it to the MAC of the phone... no dice. The phone would connect once and then never again until the router was reset. Really irritating because I have two PPPoe connections running through the router with a routing table that has to be re-loaded via telnet every time the router is reset. I was considering a new phone or a new router.
HI,
I have near the same problem.
But I found out that when I remove on the access point the hidden function ( SID ) then it works perfect.
so that is a bug in the ROM of the X10, I have the R2b026.
At the moment everone can see my Access Point but I can live with that solution.
Worked for me! Many many thanks this had been infuriating me...
Same problem here - never had an issue with any other router, so I blame Netgear...
Let's just hope this works - it's been driving me crazy for the past 5 days...
Neh, hasn't worked for me....
Stupid freakin' Netgear...
works on the HD2 aswell. Thanks alot!
Not just Netgear, maybe Android
k1sr said:
Same problem here - never had an issue with any other router, so I blame Netgear...
Let's just hope this works - it's been driving me crazy for the past 5 days...
Click to expand...
Click to collapse
I am having the same issue on my HD2 Android 2.3.4, connecting to a D-Link DIR-635. If I use Static IP, everything is fine...
WORKS! I can't believe it, finally i can disconnect and connect without having to reset my router everytime. BIG thanks man!
alright, it worked fine for the first 5-6 hours. then it went back to not connecting without rebooting the router. this problem happens only with my home router, at work i can connect fine, as well as in other places.
any thoughts or solutions? i mean it did work in the beginning, then why did it stop? shall i change my router?
P.S.: i noticed that every time i connect to my home router i get the same IP address and all the stats are the same.

Issues connecting to 802.11n

Been using wifi at work, understand that recently they changed the config on the router to only broadcast N. Ever since my NC will scan, connect, then immediately disconnect. I am running CM7 on nightly #177. Been doing it with several previous nightlies. I have a Netgear WNR3500 at home that I have setup to broadcast both G and N, the NC always connects G at 54mbps. Is there some setting I can check or file I can modify that will let me modify wifi settings on the NC? Any help with the N connection would be great. Thanks.
Edit: Ok, I lowered my overclock from 1.1ghz to 800 and it connected without a problem. Seems the overclock is having issues. Have to play around with it a little and try and figure things out somemore. Please disregard.
I'm having the same problem. My school recently switched to an n network and now I can only get connected occasionally and the connection drops within a minute or two, even if I'm in the middle of uploading a file.
Long story short, I can only use the internet if I set my router to 802.11g only.
I have a new Nook Color that I couldn't get to register. I tried updating the firmware to 1.4.2, which didn't help. I ended up being able to register by setting my D-Link Dir-615 router to G-only. After registering, I installed [CM7.2-RC1] MiRaGe (04/16/2012), but still can only connect when the router is set to G-only. G&N and N-only won't work. I've tried everything I can think of, including resetting the router to factory defaults and turning off wifi security. I've never touched airplane mode nor the overclock settings on the NC. I've tried forgetting all wifi connections, turn off wifi, etc. many times. I have a media player (N) and laptop (G) that both work perfectly. Setting the router to G-only cripples the speed of file transfers to my media player, so I'd really like to find a better solution. If anyone has any ideas, I'd be very appreciative.
EDIT: To clarify, when the router is set to something other than G-only, the NC can still connect and gets full green bars, but no internet app will work. If I then set the router to G-only the wifi indicator on the NC will disappear for a second, then reappear and the internet works perfectly without me touching the NC. I don't have to turn off wifi or anything, just tap refresh on the browser.
check your router against a different device.
DigitalMD said:
check your router against a different device.
Click to expand...
Click to collapse
My media player (802.11n) and my laptop (802.11g) both work no matter what mode the wireless is set to. My Nook Color would connect fine, full green bars on the display, but no internet. Setting the router to 802.11g-only mode would make the Nook Color work, but slow down my media player.
Solution: I put dd-wrt firmware on my router and the Nook Color works perfectly while the router is in G&N mode, and the file transfer speed to the media player is back up to where it was.
Afterthought: I really thought it was the Nook Color that had the issue. This problem (NC only working when the router is set to G-only) isn't uncommon on the Barnes & Noble support forum and the media player worked great at N speeds. I went through my router's settings multiple times, testing after each minor change. I don't know why the dd-wrt firmware made it work, I'm just glad it did.
The problem with 802.11n has been present from almost day 1. See
http://forum.xda-developers.com/showthread.php?t=959823&highlight=wifi
The sure fix as others have noted is to not use 802.11n. Good to know that dd-wrt fixes the problem - assuming you have a router that supports dd-wrt.

Unable to access internet over WiFi for few apps

I am facing a weird issue when using a Wifi connection on my tablet (Karbonn Smart Tab 10)
I can easily connect to the WiFi router at my home and access the internet, but only the Google Play Store App and Facebook App cannot access internet via WiFi.
Using Chrome browser, I can access Play store and every other website but not facebook.com
This issue is only happening in my tablet running on JB and other 2 andriod GB phones at my place work fine using the same WiFi router.
Furthermore, if I use any other WiFi network or 3g connection I do not face the above issue!
I have tried searching across forums and have done the following:
1. Reset the tablet to factory setting 3 times
2. Reset my WiFi router to factory setting
3. Updated the latest firmware for my Dlink wireless DIR300 router
4. Tweaks like enable 11g only setting on my router, removed all levels of protection and kept the wifi unsecure
5. Disabled all firewall options on the router
6. Configured WiFi on the tablet using WPS
7. Installed Firefox and Dolphin browser, but still cannot access facebook
8. Used static ip and also Changed dns to 8.8.8.8 and 8.8.4.4
None of the above has worked... Can anyone help me pls...
Thanks,
Rahul
Do you have a terminal program installed on your device? Try pinging those sites.
Problem Solved!
MrObvious said:
Do you have a terminal program installed on your device? Try pinging those sites.
Click to expand...
Click to collapse
Thanks for the reply!
But last night I keep awake upto 4AM and tried every other thing on my tab and the wifi router.
Finally I managed to resolve the issue!!
I changed the MTU in my WiFi router from 1500 to 1300 and now Playstore and Facebook apps can access internet over wifi.
I never knew what MTU was, but read wikipedia to find out. The max possible MTU is 1500 which was the default setting of my WiFi router.
Pls refer this article on wikipedia with topic as Maximum_transmission_unit (Cant paste the direct link here as the forum doesnt allow new members like me to do so...)
Moral of the story learnt my me: Do not buy cheap Chinese tabs, u will surely regret later!
I had the same issue. Thank you:good:
Thanks a TON!!!!!!
y5krahul said:
Thanks for the reply!
But last night I keep awake upto 4AM and tried every other thing on my tab and the wifi router.
Finally I managed to resolve the issue!!
I changed the MTU in my WiFi router from 1500 to 1300 and now Playstore and Facebook apps can access internet over wifi.
I never knew what MTU was, but read wikipedia to find out. The max possible MTU is 1500 which was the default setting of my WiFi router.
Pls refer this article on wikipedia with topic as Maximum_transmission_unit (Cant paste the direct link here as the forum doesnt allow new members like me to do so...)
Moral of the story learnt my me: Do not buy cheap Chinese tabs, u will surely regret later!
Click to expand...
Click to collapse
I had the same issue dude. I did device reset for couple of times. Was not sure whether the problem was with the ISP or with my Android OS or with the router. I was so damn frustrated with it. FINALLY it got resolved!!! I literally danced on my feet after it started working.
Thanks again!:laugh:
Why blame the chinese
y5krahul said:
Thanks for the reply!
But last night I keep awake upto 4AM and tried every other thing on my tab and the wifi router.
Finally I managed to resolve the issue!!
I changed the MTU in my WiFi router from 1500 to 1300 and now Playstore and Facebook apps can access internet over wifi.
I never knew what MTU was, but read wikipedia to find out. The max possible MTU is 1500 which was the default setting of my WiFi router.
Pls refer this article on wikipedia with topic as Maximum_transmission_unit (Cant paste the direct link here as the forum doesnt allow new members like me to do so...)
Moral of the story learnt my me: Do not buy cheap Chinese tabs, u will surely regret later!
Click to expand...
Click to collapse
Good finding. But why you blame the chinese tabs? It is a very strange fix, MTU is to do with the device (in this case is the router)
Another possible solution
Hi,
Came across this thread whilst looking for a solution to a problem with my wife's tablet (a Samsung). Tablet seemed to access the internet fine in the stock browser but many apps such as Facebook, Google Play etc did not work.
In the end it turned out to be the fact that many apps use SSL (secure https) for their connections and the tablet was rejecting all SSL certificates because the date/time was wrong (specifically the date - 13 years back!).
Setting the correct date fixed the issue so I'm posting the solution here for anyone else who comes across it.
electro_dan said:
Hi,
Came across this thread whilst looking for a solution to a problem with my wife's tablet (a Samsung). Tablet seemed to access the internet fine in the stock browser but many apps such as Facebook, Google Play etc did not work.
In the end it turned out to be the fact that many apps use SSL (secure https) for their connections and the tablet was rejecting all SSL certificates because the date/time was wrong (specifically the date - 13 years back!).
Setting the correct date fixed the issue so I'm posting the solution here for anyone else who comes across it.
Click to expand...
Click to collapse
Hi, Thanks for your reply!
I actually figured out what the issue was with my tab. There is a setting in the wi-fi router which is known as MTU (Maximum transmission unit). By default this is set to 1500 in most routers. I reduced it to 1000 and now everything is working fine in my tab. However, I feel my internet gets disconnected frequently after changing the MTU to 1000..
tinbox134 said:
Good finding. But why you blame the chinese tabs? It is a very strange fix, MTU is to do with the device (in this case is the router)
Click to expand...
Click to collapse
I blame the Chinese tab because only for accessing internet via the tab I had to reduce the MTU to 1000. With the MTU set to 1500 in my router all other devices in my home can connect to the internet without any issues. Problem is with the tab and not with the router.

S8 Internet connection may not be available issue

Just got the S8 and I have 3 Wi-Fi access points at home to cover the whole house. My S8 has been registered with the passwords for all of the APs but it continually rejects the connections with an exclamation mark after the WiFi icon having connected and then shown a message that the Internet connection may not be available. The Internet connection is available as other devices are connected and using it perfectly. If I switch the Wi-Fi on and off and reboot the S8 the issue corrects itself but I should not have to go through that nonsense every time I come home and want to use my Wi-Fi. I have explored the advanced options on the connection settings and they appear to be quite limited (DHCP Etc). Is there some way to solve this issue? I have no problem with other android devices connecting to the same hotspots. Any ideas that might lead to a solution would be appreciated.
bbersk said:
Just got the S8 and I have 3 Wi-Fi access points at home to cover the whole house. My S8 has been registered with the passwords for all of the APs but it continually rejects the connections with an exclamation mark after the WiFi icon having connected and then shown a message that the Internet connection may not be available. The Internet connection is available as other devices are connected and using it perfectly. If I switch the Wi-Fi on and off and reboot the S8 the issue corrects itself but I should not have to go through that nonsense every time I come home and want to use my Wi-Fi. I have explored the advanced options on the connection settings and they appear to be quite limited (DHCP Etc). Is there some way to solve this issue? I have no problem with other android devices connecting to the same hotspots. Any ideas that might lead to a solution would be appreciated.
Click to expand...
Click to collapse
I had this problem when i first got my s8 from vodafone but when i got this latest update it's been good no issues with internet anymore.
I have this problem as well with my S8 from Verizon. Worked flawlessly for a week and them today I get this error. Very frustrating. I know the SMG955U from Verizon is already unlocked but is there any way to put the International ROM on the phone seeing that the Verizon and the International are the same?
I've tried all the resets etc and the WiFi connects but I get the 'Internet connection may not be available' message.
Update 27/04/2017
Thanks for the reply. My S8 developed some interesting issues including the switching on of 'do not disturb' mode intermittently and along with the Wi-Fi issue the mobile data was failing in areas where a full 4G signal was present. Rebooting, resetting etc did not resolve the issue and I returned the phone to CPW for advice. The staff at the Glasgow store wasted no time and exchanged it on the spot after some negotiation with their technical service centre. Full marks to CPW for the prompt service and I can report that all of the previous issues have now been resolved with the replacement handset. I thought it worthwhile to post this information so that others who experience similar issues may be able to get a similar resolution.
Poor WIFI performance
I also have issues with the wifi of the phone, /i will get the terminal replace some time today or next week.
1. WIFI keeps disconnecting, actually it's flapping connct&disconnect for 5-10 min until it finally connects, on this matter I have seen on the acces point that it tried to allocate an ip from an unknown without asking DHCP server for an IP renew it actually tries to alocate itself the last known ip, and clearly disconnects because of lack of internet access, this happens normally as power saving mode is on, disabeling power saving and assigning a static ip on the phone seems to resolve the issue.
2. poor wifi signal... no fix for this thus far
- i have 580Mbps speed connection on my S5 and only 120-240Mbps on my S8, steaming not working and connection in general very bad, time ots and stuf, although I position myself at 10cm away from the wifi router antenas i only get 540Mbps signal, although I have an AC1750 router , s5 gets 840 in the same spot... I think the modem(that is part of the Exynos chipset) does not work wekll with Atheros based AP´s , I have an Archer C7 with 2.4ghz QCA9558 chipset capable of 450 Mbps theoretical speed, but only uses 2 antenas as s8 only has 2 from my knowledge and reaches a max of 140Mbps(should of connected at 300Mbps at 10cm in theory ) with the s8 and QCA9880-BR4A on the 5ghz side of things with a theoretical speed of 1300Mbps should work at 866 with the S8 because of the 2 antenas of the S8.
phone changed 90% of problems fixed
Hello, just got my phone replaced, tha new unit has way better wifi signal considering I hace atheros router and the phone has broadcom 43xx chipset... worth considerign changing to a broadcom router...
Hi,
I have found a solution to this problem.
1. GO to wifi settings
2. Forget the wifi network
3. CONNECT AGAIN BUT BEFORE CONNECTING GO TO ADVANCED OPTIONS AND CHOOSE STATIC INSTEAD OF AUtOMATIC. Enter in the ip address etc and connect.( It requires to be entered manually) Problem will be solved.
bbersk said:
Just got the S8 and I have 3 Wi-Fi access points at home to cover the whole house. My S8 has been registered with the passwords for all of the APs but it continually rejects the connections with an exclamation mark after the WiFi icon having connected and then shown a message that the Internet connection may not be available. The Internet connection is available as other devices are connected and using it perfectly. If I switch the Wi-Fi on and off and reboot the S8 the issue corrects itself but I should not have to go through that nonsense every time I come home and want to use my Wi-Fi. I have explored the advanced options on the connection settings and they appear to be quite limited (DHCP Etc). Is there some way to solve this issue? I have no problem with other android devices connecting to the same hotspots. Any ideas that might lead to a solution would be appreciated.
Click to expand...
Click to collapse
Hi,
I have found a solution to this problem.
1. GO to wifi settings
2. Forget the wifi network
3. CONNECT AGAIN BUT BEFORE CONNECTING GO TO ADVANCED OPTIONS AND CHOOSE STATIC INSTEAD OF AUtOMATIC. Enter in the ip address etc and connect. Problem will be solved.
@Saurav913 doesn't work your tip,but my wifi drop too much especially in stanby (set it on always option) and till I wake up my phone i don't have wifi again with router Vodafone revolution..
Change the DNS...
Hi there..
I had just the same problem with s8 plus and s7 edge(after updating to android 7.0), it kept saying "internet may not be available", I changed the DNS to 8.8.8.8 and tue problem solved. Go to SETTINGS》WIFI》SSID》MANGE NETWORK》change the IP SETTINGS to STATIC》then change the DNS1 to 8.8.8.8 hit save and you are good to go.
Sorry if there are any mistakes. I am new to XDA and not good in english.
---------- Post added at 01:24 AM ---------- Previous post was at 01:20 AM ----------
bbersk said:
Just got the S8 and I have 3 Wi-Fi access points at home to cover the whole house. My S8 has been registered with the passwords for all of the APs but it continually rejects the connections with an exclamation mark after the WiFi icon having connected and then shown a message that the Internet connection may not be available. The Internet connection is available as other devices are connected and using it perfectly. If I switch the Wi-Fi on and off and reboot the S8 the issue corrects itself but I should not have to go through that nonsense every time I come home and want to use my Wi-Fi. I have explored the advanced options on the connection settings and they appear to be quite limited (DHCP Etc). Is there some way to solve this issue? I have no problem with other android devices connecting to the same hotspots. Any ideas that might lead to a solution would be appreciated.
Click to expand...
Click to collapse
Hi there..
I had just the same problem with s8 plus and s7 edge(after updating to android 7.0), it kept saying "internet may not be available", I changed the DNS to 8.8.8.8 and tue problem solved. Go to SETTINGS》WIFI》SSID》MANGE NETWORK》change the IP SETTINGS to STATIC》then change the DNS1 to 8.8.8.8 hit save and you are good to go.
Sorry if there are any mistakes. I am new to XDA and not good in english.
I have same problem and it is very annoying. I got 2 S8 plus and both have the problem.
There are 3 WIFI Router that covers my house. I have problems saying internet might not be available every time I connect. This is very annoying. Other Phones in the house like Iphone do not have the problem.
What I noticed is that the IP range of my router is:
192.168.1.1
But my S8 says he is connected but the IP is
192.168.0.100
Anyone have same problem?
Thanks!
bbersk said:
Just got the S8 and I have 3 Wi-Fi access points at home to cover the whole house. My S8 has been registered with the passwords for all of the APs but it continually rejects the connections with an exclamation mark after the WiFi icon having connected and then shown a message that the Internet connection may not be available. The Internet connection is available as other devices are connected and using it perfectly. If I switch the Wi-Fi on and off and reboot the S8 the issue corrects itself but I should not have to go through that nonsense every time I come home and want to use my Wi-Fi. I have explored the advanced options on the connection settings and they appear to be quite limited (DHCP Etc). Is there some way to solve this issue? I have no problem with other android devices connecting to the same hotspots. Any ideas that might lead to a solution would be appreciated.
Click to expand...
Click to collapse
I found a quick work around on how to fix this temporarily until Samsung issues a patch.
just turn off 5ghz SSID broadcasting and you should be ok for now.
here is a quick how to video i made on just in case.
https://youtu.be/Nu5FjDPLn-M
I'm having a very similar problem with my home WiFi and my Verizon S8+ I bought from Samsung's website. I've tried switching from DHCP to static and entering all my info. No luck. I've also switched my dns1 to 8.8.8.8 and dns2 to 8.8.4.4, and my WiFi router is set to 2.4ghz only. No success in resolving the issue. Currently my phone will show the "internet may not be available" with the added exclaimation point for a few minutes when first connected, then the exclaimation goes away and I'll have regular full speed internet for around 25-45 seconds before it goes back to a non-internet state. Any suggestions?
Try changing in your router the security setting. If your using WPA2 AES/TKIP, change to just WPA2 TKIP and see if this works for you...
I was having the same exact issue for months. I changed to TKIP only and have been rock solid ever since. No more ! at all... I'm gonna switch to just AES today and see how that works.
Changed to WPA2-AES and within the hour had ! back and no internet. Went back to TKIP and rock solid again. Looks like a possible bug with AES to me. Sticking with wpa2-tkip setting for now.
I'm having this same exact issue.
Anyone who knows what to look for to fix this, what info or files do you need from me? I'm at the end of my tether with this ****
I am having the exact same issue on my galaxy tab s2, even on the replacement. Due to the being such an intermittent problem, it wouldn't do it when Samsung support checked it out...
This happens on both 2.4 ghz and 5 ghz frequency for me. I've tried downloading a wifi fixer, I've reset network settings, and turned off nearby device scanning. I've also tried doing what a forum suggested by changing the ip settings from dhcp to static but it wouldn't connect to wifi at all. Not sure what else to try...
I read that it may be due to nougat 7.0 software. I was suggested by Samsung to first put the tablet on safe mode (this disables third party apps, and would reveil if an app was causing the problem) but the problem still persists. Also did a hard reset on the first tablet I had but it still done the same problem...
I always thought that this was a is problem in 7.0, and was addressed in 7.1. Hopefully, when the next major update comes out, this issue will be resolved.
Oh come on Samsung!
It's been 4 months since the first post and still no solution.
And it's a basic wifi connection!
Internet may not be available! = Samsung may not be available
Heya all. First post I guess
Edit: Gah it was the second. I have to controll myself better and not spam.
So I had the same problem and tried more or less all.
My "solution" was to disable the firewall on the router which means some settings/security there was triggered. My guess is that it's the "Smart Network connection" that trigger it if the phone have both poor Wi-Fi and 4G. It then jumps back and forward = firewall detect strange behaviour and block. That's why there are so many strange "fix" related to the router - hidden network - no security - disable 5Ghz and so on.
Can someone please test asap as I have a plan But if it's not this to test
JayJayaa said:
Oh come on Samsung!
It's been 4 months since the first post and still no solution.
And it's a basic wifi connection!
Internet may not be available! = Samsung may not be available
Click to expand...
Click to collapse

Galaxy Tab A 8-inch (SM-T350) Wifi/internet issues

Hi everyone!
Recently, I bought my mother a Galaxy Tab A 8-inch device (Model Number SM-T350) and it theres an issue where the device seems to be connected to her Wifi network, but after a while, she is not able to browse the internet or use Viber. The Wifi Network shows connected. But after a specific time, when she needs to use Viber, she cannot connect to the internet even though the network is connected to her Wifi network.
Its not only Viber, but she cannot browse the internet using Firefox or the native browser.
The only way to resolve this is by turning ON/OFF the Wifi.
We tried a number of things like Setting the Sleep options to Never disconnect from Wifi, resetting the router, and so forth...
I tried updating the device but it seems like that this unit only goes up to Android 6.0..1. There is no security software that I know of installed on the device either. I checked the router settings as well and all devices going through that router are not Blacklisted. So all devices can pass or connect to the network. No MAC address filtering turned ON, it is OFF. But these settings are irrelevant to the issue in question, as the device Wifi shows status as Connected...
This is quite a "PITTY" situation as her Viber contacts cannot even call her either because of this issue.
To recap or to sum it up on the issue, is that after a while the internet does not seem to work on the device even though its connected to her Wifi network.
My mother does not have any other devices at her home.
I wonder if this is an Android bug or there is an issue with our router?
The router in question is a Cisco WRVS4400N if this helps.
Thanks
Bump. I have the same issue with my Tab A 6.
av_899 said:
Hi everyone!
Recently, I bought my mother a Galaxy Tab A 8-inch device (Model Number SM-T350) and it theres an issue where the device seems to be connected to her Wifi network, but after a while, she is not able to browse the internet or use Viber. The Wifi Network shows connected. But after a specific time, when she needs to use Viber, she cannot connect to the internet even though the network is connected to her Wifi network.
Its not only Viber, but she cannot browse the internet using Firefox or the native browser.
The only way to resolve this is by turning ON/OFF the Wifi.
We tried a number of things like Setting the Sleep options to Never disconnect from Wifi, resetting the router, and so forth...
I tried updating the device but it seems like that this unit only goes up to Android 6.0..1. There is no security software that I know of installed on the device either. I checked the router settings as well and all devices going through that router are not Blacklisted. So all devices can pass or connect to the network. No MAC address filtering turned ON, it is OFF. But these settings are irrelevant to the issue in question, as the device Wifi shows status as Connected...
This is quite a "PITTY" situation as her Viber contacts cannot even call her either because of this issue.
To recap or to sum it up on the issue, is that after a while the internet does not seem to work on the device even though its connected to her Wifi network.
My mother does not have any other devices at her home.
I wonder if this is an Android bug or there is an issue with our router?
The router in question is a Cisco WRVS4400N if this helps.
Thanks
Click to expand...
Click to collapse
How old is there router
I have a similar problem with the Samsung Galaxy tablet a. My version is SM-T350. When I 1st got it a few years ago, everything worked great and I was able to connect to the Wi-Fi no problem. However, I believe that was after an update, the tab A will no longer connect to the Internet in less it is sitting right next to the router. Even this can be sketchy. It has to be within 2" to connect. I don't think it has anything to do with the router, but something with the internal Wi-Fi. I was thinking before when I wouldn't be able to connect it I had to select WEP instead of WPA

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