Wifi disconnected itself while phone is locked - Samsung Galaxy S7 Edge Questions and Answers

I have the wifi set to stay on while the phone sleeps (which is how it comes out the box). However, for some reason... Every time I lock my phone the wifi disconnects and tells me "no Internet connection found". I have to then click on my wifi and manually connect it back and it starts working again. It's this happening with anyone else?

yvibes said:
I have the wifi set to stay on while the phone sleeps (which is how it comes out the box). However, for some reason... Every time I lock my phone the wifi disconnects and tells me "no Internet connection found". I have to then click on my wifi and manually connect it back and it starts working again. It's this happening with anyone else?
Click to expand...
Click to collapse
try to roll back to the Lollipop DHCP Client. Settings-> Developer Options-> Use legacy DHCP client.

Related

Wifi problem

I have a strange poblem with Wifi. Whenever I try to connect to any accesspoint, secured or otherwise, it displays "CONNECTING" for a while, then reverts to "AVAILABLE". Once in a while, by resetting or turning wifi off and on, Ill be able to connect and then everything is fine. But the moment I trun wifi off and back on, or suspend the unit the error returns.
Update: this is getting even wierder. I am able to connect to _secured_ networks without a problem, but I still cannot connect to unsecured ones.
rokujuuyon said:
Update: this is getting even wierder. I am able to connect to _secured_ networks without a problem, but I still cannot connect to unsecured ones.
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Click to collapse
it would help if you post your GSM/ROM version and to what kind of network you are trying to connect ?

Frequent Disconnecting from WiFi?

Is anyone else having trouble with their WiFi dropping out all the time? My phone keeps dropping WiFi, dropping back to 3G. I have to keep going to settings and telling it to reconnect.
I have a Linksys WRT54GL running Tomato firmware. Most things can connect to it just fine, but my Dell Laptop from work gives me a BSOD when I try to connect it wirelessly.
Thoughts?
I think I figured it out. I upgraded my Tomato firmware on the router, and WiFi seems to be working much better.
Sent from my HTC Liberty using XDA App
Please post back if it acts up again. My wifi has stopped working a few times and I had to manually reset it. My problem was compounded because 3g seemed to be active but webpages would timeout and sync would fail. Really annoying.
no problems with my wifi but I turn off network data. Maybe that helps?
Sent from my HTC Liberty using XDA App
I have the same issue. My wi-fi goes down and keeps looping through "obtaining an IP address". Killed my battery last night trying to connect to wi-fi. I can't get it coinnected again until I reset my router. weird?
I don't know if I would classify it as constant, but the University wireless network disconnects after some period of inactivity. I'm not certain if it is due to the phone or the network.
Sent from my HTC Liberty using XDA App
It seems like it is still doing it, but I'm wondering if what it is actually doing now is disconnecting after a period of disuse, then reconnecting.
It seems like if I don't see the WiFi symbol, and I select Mail or the Browser, it will re-appear.
I have similar issues with WIFI. It seems having a hard time connecting or even seeing the signal at times, but other times it's fine. I have WIFI at home and at work, and many places I am so I use it all the time, and all of them I have set up (I'm a sys admin).
I have WiFi analizer loaded and at times it won't even see my netowrks when my laptop is already connected. If I reboot the phone it seems to fix it after a min or so. Sometimes turning WiFi off and on helps but not always.
It's really inconsistant... I'll go a few days with no problems, then it will have problems for a day or so. Open or encrypted don't seem to make a differance.
Chris
dochood said:
Is anyone else having trouble with their WiFi dropping out all the time? My phone keeps dropping WiFi, dropping back to 3G. I have to keep going to settings and telling it to reconnect.
I have a Linksys WRT54GL running Tomato firmware. Most things can connect to it just fine, but my Dell Laptop from work gives me a BSOD when I try to connect it wirelessly.
Thoughts?
Click to expand...
Click to collapse
Tomato firmware, that sounds cute.
http://code.google.com/p/android/issues/detail?id=1040
Issue 1040: wifi does not timeout on idle
Issue that was in an earlier version of Android, and is back in 2.1.
When the phone sleeps, it turns off WiFi. Then, it won't turn it back on properly until you go to settings or sometimes WiFi settings. Then it just pops on automatically.
Yup, I got this problem too and its very annoying.
It usually happens when the phone has been sleeping for an extended period of time. Sometimes wifi disconnects and will not reconnect even when I'm in the middle of browsing the web.
i had this issue as well.... i went to settings/wireless and networks/wifi settings....then hit menu/advanced/wifi sleep policy.... i selected nver and haven't had a problem since
Problem is, "never" is already selected and issue still persists.
I had set it to 15 minutes to see if it fixed the problem, because I was having it when it was set to never. I'm setting it to never now to see if
the GUI just wasn't displaying the value that was set.
Sent from my HTC Liberty using XDA App

[Q] Wifi not turning off...

I don't know if it's only since my update to 3.1, but the Wifi Disconnect Policy doesn't seem to work.
I set it to Disconnect on Screen Off - but the pad is still tinkling away receiving email -- and still pingable across the WLAN.
Is anyone else finding this?
-Craig
Yes I'm pretty sure I see the same. It is hard to be 100% sure as the battery use data seems broken, but I've seen wireless activity almost constantly from the asus to my router when the screen is off.
I also have issues at time with connecting to a network, it loops trying to get an IP address, turning the wifi off then on solves that problem, but it is a pain to have to do that....
I use JuiceDefender to disable WiFi when screen is off. I had already bought it for my phone where I want my data to be off at night while I'm asleep, so it didn't cost me anything to use it on my Tablet also. There is a free version you can try with few settings/controls. The paid versions add additional settings/customizations.
Wi-Fi will disconnect from AP after screen off 15 mins when Wi-Fi disconnect policy is set to "When screen turns off".
It's Android behavior.
Aha! Having done more tests (and being more patient ) It does indeed turn off after 15mins..
Cool.
(Would have been better if the setting description wasn't misleading...)
Hi,
yes after further testing it does indeed seem to turn off eventually. However once it is off it seems to have problems re-connecting when you turn the device back on again. I typically have to disable/enable WiFi to get it to work. Anyone else seeing this?
gloomyandy said:
Hi,
yes after further testing it does indeed seem to turn off eventually. However once it is off it seems to have problems re-connecting when you turn the device back on again. I typically have to disable/enable WiFi to get it to work. Anyone else seeing this?
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Click to collapse
Yup - on occasion. About 10% of the time. Seems to be when I move between two different SSIDs (i.e. when I get to the office, or when I return home)
Would be happy to investigate, if someone could point me at any log/debug info that's accessible...?
gloomyandy said:
Hi,
yes after further testing it does indeed seem to turn off eventually. However once it is off it seems to have problems re-connecting when you turn the device back on again. I typically have to disable/enable WiFi to get it to work. Anyone else seeing this?
Click to expand...
Click to collapse
I get that too
I now have a widget to turn off wifi. I turn it off when the screen goes off so that it actually turns wifi off (doesn't seem to disconnect for me either), and to turn it back on when I start using it again because it never reconnects properly :S
I have the same problem too. It keeps saying trying to get an IP address. Even I have DHCP running on the router, I changed the setting of home wifi on TF to be static IP address. Now, it connects all the time when waking up from sleep.
Hope that helps (at least when you are home).
case0 said:
I get that too
I now have a widget to turn off wifi. I turn it off when the screen goes off so that it actually turns wifi off (doesn't seem to disconnect for me either), and to turn it back on when I start using it again because it never reconnects properly :S
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Click to collapse
aiboxda said:
I have the same problem too. It keeps saying trying to get an IP address. Even I have DHCP running on the router, I changed the setting of home wifi on TF to be static IP address. Now, it connects all the time when waking up from sleep.
Hope that helps (at least when you are home).
Click to expand...
Click to collapse
same here. its been happening since I got my TF (launch date) Where on the TF do I set static IP address on the TF?
Go to Wifi setup screen. Press and hold on the wifi network you want to change. Then select "Modify Network".
dazz87 said:
same here. its been happening since I got my TF (launch date) Where on the TF do I set static IP address on the TF?
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Click to collapse
aiboxda said:
Go to Wifi setup screen. Press and hold on the wifi network you want to change. Then select "Modify Network".
Click to expand...
Click to collapse
Cool thanks.

Semi-protected Wi-Fi - Android 4.3

Hi!
I've update my I9505 to Stock 4.3, with root. I've a problem. I use semi-protected WiFI (like at University) that works as follows : the network is technically open to everyone, free, but for navigate\download\anything, you need to open your browser and enter your credentials.
Android 4.2.2 on my I9505 connected automatically to this network, so I opened a browser and put my credentials.
Since I upgraded to 4.3, my phone connects to the network, then disconnects after a few seconds saying that you must authenticate yourself, then I have to enter settings (making it pointless to activate the wifi with the toggle in the notification bar), i've to reconnect to the network manually, wait about 10 \ 15 seconds, then I can open the stock browser and connect from there (I have to connect when it says so). This even though I do not use the toggle, when I activate the wifi in the settings, it connects, disconnects, and I have to reconnect again.
Now, every time I connect I lose a minute when in fact it took a few seconds before, there is no way to return to the previous behavior? Even with root solution. To read an e-mail I have to wait a minute for the connection...
thanks
Edit: sorry, maybe I had to put this thread on Q&A section, but now I can't move...
Sent from my GT-I9505 using Tapatalk 4
Yeah I hate it, the same thing happens on the London Underground wifi. It used to just connect then have the notification telling you you had to log in, which you could then click on. What makes it extra doubly annoying, is that the Underground wifi actually does work for everything apart from HTTP traffic before signing in, so you could just not sign in the whole journey and still get email/whatsapp, but not webpages or facebook etc. Now that it disconnects you I don't get anything till I manually connect it.
jeremy_inc said:
Yeah I hate it, the same thing happens on the London Underground wifi. It used to just connect then have the notification telling you you had to log in, which you could then click on. What makes it extra doubly annoying, is that the Underground wifi actually does work for everything apart from HTTP traffic before signing in, so you could just not sign in the whole journey and still get email/whatsapp, but not webpages or facebook etc. Now that it disconnects you I don't get anything till I manually connect it.
Click to expand...
Click to collapse
To get back to the old behaviour go into Settings->Connections->Wifi - > MENU button ->Advanced and disable "auto network switch"
I found I had to do this to get such networks to work ok, otherwise the wifi network was deactivated
planetf1 said:
To get back to the old behaviour go into Settings->Connections->Wifi - > MENU button ->Advanced and disable "auto network switch"
I found I had to do this to get such networks to work ok, otherwise the wifi network was deactivated
Click to expand...
Click to collapse
This was already disable in my phone...
Sent from my GT-I9505 using Tapatalk 4
jeremy_inc said:
Yeah I hate it, the same thing happens on the London Underground wifi. It used to just connect then have the notification telling you you had to log in, which you could then click on. What makes it extra doubly annoying, is that the Underground wifi actually does work for everything apart from HTTP traffic before signing in, so you could just not sign in the whole journey and still get email/whatsapp, but not webpages or facebook etc. Now that it disconnects you I don't get anything till I manually connect it.
Click to expand...
Click to collapse
ya that was the first thing I checked, it was already off.
I am also facing this problem. Till now no solution. The "Auto Network Switch" seems to be valid for Mobile Data only...

Is my wifi chip (hardware) broken? (Lenovo A7600-F)

Hey,
I recently got a used Lenovo A7600-F tablet from my office because they weren't using it anyways.
Everything seems to work perfectly fine - except the wifi connection.
Code:
Model: Lenovo A7600-F
Android: 4.4.2 (no further update available for that model)
Kernel: 3.4.67
Build: A7600F_A442_000_029_150401_ROW
Here is the thing:
I disable/enable wifi
I click my home network and enter the password
Nothing happens for ~2 seconds
"Failed to connect to network" (no "connecting" or similar)
To make sure my WPA2 security isn't the problem, I made an unprotected hotspot on my phone. Absolutely identical problem.
One thing I noticed: The tablet is able to find all the networks around me and updates their signal strength in the list without any problems. As soon as I try to connect to one, it takes around 2 seconds until it says "Failed to connect to network". If I then try again, the message pops up instantly with no delay for all networks. From that moment on, the list also stops updating and can't be refreshed until I turn my wifi off and on again.
I downloaded "Wifi Analyzer" and I can see all the networks' strength values moving. I can close the app, do something else or go to standby and come back to see the values still updating. But as soon as I try to connect to a network, it will give that error again, stop updating the list in the wifi section and Wifi Analyzer will not be able to find any more signals. If I close that app and bring it back up now, the list of networks will remain empty. Same with the networklist on the wifi settings. Turning wifi off and on again resets the whole thing.
In short: My tablet sees all networks around me and updates them, but gives an error ("Failed to connect to network") as soon as I try to connect. Then no more wifi updates until i disable/enable it again.
Factory reset did not help, I let the battery drain and charged it back up - no success! I also tried an app called "Wifi Ruler", which was mentioned to fix a similar problem in a post I found on another forum. Connecting through that has exactly the same effect.
Does anybody have an idea about what is going wrong and what else I could try to fix this?

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