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Networking problem, need help please

Help,please.
Meet the problem. Transformer connected to my home wifi network. All devices in network connected to the internet, except Transformer. Manually configured network. I tried different wifi networks. All wifi networks successfully connected, but without internet. It looks like transformer could not route. i could not ping machines in the same network. Is there anybody who has same problem??
Thanks in advance
P.S. Who knows how to make routing table? Transformer connects to wifi, can ping himself but could not ping gateway in the same network.
It happend when i started playing with ROMs. Installed different ROMs with super wipe (Revolver, Revolution HD, Megatron, ICS WW_epaduser9_2_1_24, same problem.

have you tried switching the router off for a few minutes and rebooting it?

scottyf79 said:
have you tried switching the router off for a few minutes and rebooting it?
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O yess, many times. If it is router problem, then all other machines could not connect to internet over wifi. Only Transformer could not, and tested on 3 different wifi networks (with and without DHCP)

probably wont help, but what about Kernel - have you tried different Kernels?

scottyf79 said:
have you tried switching the router off for a few minutes and rebooting it?
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Click to collapse
scottyf79 said:
probably wont help, but what about Kernel - have you tried different Kernels?
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Click to collapse
I tried different kernels, (Kernel-ICS-V22.6-OC1700-fb-AOKP_646, kernel_asus_rev01) but what kernel would you suggest?

if those have not worked then i doubt any others will. Rev3 Harmony (asus or universal) depending on which base your going to try - or the latest Guevor, version depending on base again.
Wifi is not my thing but thought id ask the obvious just incase. sorry i cant help more but im sure someone will be along soon :good:

WTF.
Installed Kernel Guevor N22.6 and Revolver 4.0.3 ROM. Same problem. Connected to wifi but no internet.
Even I disassemble Transformer and reconnected batteries. Does not help
Is it possible that hardware problem in wifi? Why in that case wifi connected? Magic.

First try turning air plane mode on then off to see if that works also your network may not like androids long default host name so consider changing that if you have root

What router are you using? make sure your using channels 1-11 (not 12 or 13) and check your on 2.4 GHz not 5 GHz

For the present test im using connectify soft and share my internet over my laptop. And it worked before. I installed busybox and did some commands. It looks like oruting table is correct, def gateway is pinging, interface is up. But could not connect to any site over integrated brower, could not connect to youtube or playmarket or gmail. Attached is screenshot. Maybe i lost something.
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P.S. I did airplane mode on and off, does not help.

:crying:
No one, who can give me any advice??
I reflashed Transformer up to latest ICS WW 9.2.1.27. Did not help. Still connected to wifi, but could not access to internet.

giving your router configuration and brands, could help I think...
in my period of owning a transformer, there are one place at where I live where it can't connect to.. a free wifi at a restaurant.. it just cant't, it detects but it can't connect.. the channel was within 1-11, but still not connectable.. I've tried different roms and kernel, still to no avail.. while my other device can connect to it just fine... maybe there are some router that transformer not compatible with..

Problem is that transformer could connect to wifi network without any problem. It shows that connected to internet, but could not open any site or youtube or gmail.

Is anybody else having wifi issues?

Literally received my N4 about 30 mins ago and Ive set it up etc. Ive noticed that the Wifi seems to be weak compared to all my other devices I have around me (it goes up and down and actually dropped out altogether once).
Anybody else have wifi issues?

hmm...i think so, yes
Gnex speedtest on wifi 5.19Mb
N4 speedtest on wifi 2.11Mb
not an "issue" but definitely slower

I have seen an improvent over my HTC Desire. With my 50 Mbps DL / 5Mbps UL
My results:
With WiFi N: 45 Mbps download / 5 Mbps Upload (The speedtest app just gives random download speed as I don't even get to see the download speed bar) Singal is between 40 and 60% according my router.
With WiFi G: 19 Mbps download / 5 Mbps Upload (Pretty much maxing the G bandwith) signal is 95% as the router is in the same room.

I just got phone this morning. I get my max 25 mg dl 5 upload and have had no issues

Mine was working poorly just as you described. I turned off WiFi optimization in the settings (says it helps with battery life, so I'm assuming this weakens WiFi) and I looked around in my router settings. It was set to 145Mbps (neighbor-friendly mode apparently) and was giving me less than 5Mbps up or down. After bumping it up to 300Mbps (performance mode), it is now giving me full speed for my 30/5 connection.

I'm having trouble connecting to my cisco router. It would say either "obtaining IP address" or "authenticating", then the connection breaks and it attempts to reconnect.

No issues for me.
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Sent from my Nexus 4 using xda app-developers app

I'm having trouble connecting to my cisco router. It would say either "obtaining IP address" or "authenticating", then the connection breaks and it attempts to reconnect.
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any solution for this?

PeritoX said:
any solution for this?
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Change the configuration of your router. Set an open connection and try again.
Sent from my Nexus 4 using xda app-developers app

john boot said:
Literally received my N4 about 30 mins ago and Ive set it up etc. Ive noticed that the Wifi seems to be weak compared to all my other devices I have around me (it goes up and down and actually dropped out altogether once).
Anybody else have wifi issues?
Click to expand...
Click to collapse
I had an issue on mine where it lost connection with my wifi router, then kept showing no networks in range (usually there are around a dozen showing up due to neighbors). I tried turning wifi on and off, going into airplane mode, finally had to restart the device entirely to get wifi to detect any networks again. Hasn't recurred, but it does make me concerned.

Seems good to me:

WiFi Connection Issues
hervelo said:
Change the configuration of your router. Set an open connection and try again.
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Click to collapse
I'm having problems connecting to my Buffalo router with WPA2 security. It connects just fine to my guest network that uses WEP authentication on the same router, but it just says authenticating or obtaining IP on my main network. My router is a BUFFALO AirStation HighPower N450 - WZR-HP-G450H using DD-WRT... Is Buffalo crap and that's my problem?? My Gnex connects to it fine.
I've tried disabling/enabling wifi, airplane mode then out of it, and rebooting my Nexus 4 without any luck.

fluc02 said:
I had an issue on mine where it lost connection with my wifi router, then kept showing no networks in range (usually there are around a dozen showing up due to neighbors). I tried turning wifi on and off, going into airplane mode, finally had to restart the device entirely to get wifi to detect any networks again. Hasn't recurred, but it does make me concerned.
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Click to collapse
I had this issue but toggling wifi fixes it.

I have a 30mbps down 5mbps up connection at home and I get those speeds on my phone over a wireless n connection at 5ghz. No issue with wifi at all.

[Q] 5Ghz wifi very unstable

Just got my N910G (AUS), and I found the wifi is VERY unstable when it is connected to 5Ghz band, but stable on 2.4Ghz.
Tried it on 2 different modems/routers, same.
Never had any problem with my other phones connecting to 5Ghz (M7, Z2).
Any idea?
The phone is stock, non-rooted.

Router: Linksys Smart Wi-Fi EA6500 | firmware: 1.1.29.162351
Country: Netherlands
ISP: ZIGGO
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Left: 2.4 GHz
Right: 5 GHz

henklbr said:
Router: Linksys Smart Wi-Fi EA6500 | firmware: 1.1.29.162351
Country: Netherlands
ISP: ZIGGO
Left: 2.4 GHz
Right: 5 GHz
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I'm not saying I get poor speed, I'm saying my connection is unstable (lots of disconnections).
Speed is fine.

Factory reset or try latest update/ odin flash latest fw.

You might also fiddle around with which channel your router is set to for the 5ghz band. Turn off the smart network switching too.

Ausboy 2011 said:
Factory reset or try latest update/ odin flash latest fw.
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Factory reset is not a solution to every little problem. In fact, it's not a solution at all. If you don't find out what's wrong, you could hard reset your phone, set it up from scratch and still be faced with the same issue.
Sent from my SM-P600 using Tapatalk

Ausboy 2011 said:
Factory reset or try latest update/ odin flash latest fw.
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It's a new phone with the latest firmware, i dont think factory reset going to help
rcobourn said:
You might also fiddle around with which channel your router is set to for the 5ghz band. Turn off the smart network switching too.
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Smart network switching is already turned off. Tried different channels, same results
iridaki said:
Factory reset is not a solution to every little problem. In fact, it's not a solution at all. If you don't find out what's wrong, you could hard reset your phone, set it up from scratch and still be faced with the same issue.
Sent from my SM-P600 using Tapatalk
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Agree :good:

1. Go to dial keypad and press *#0011#
2. Press menu key and press WiFi option
3. Turn Wifi Power Save Mode off
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Did this and no dropout so far!
:laugh:

rockuman_ex said:
Did this and no dropout so far!
:laugh:
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Just change the 5ghz wifi channel to that which is obviously suitable for all your devices. Also had this issue but my PC was able to connect to both 5ghz channel on my 2 dual band routers while the phablet won't. I fiddled and discovered the lower channels worked perfectly

Cannot scan 5Ghz Dual band Wifi on Airplane Mode

Hi fellow S7 users,
Just like to asf if everyone with this handset are not able to find 5Ghz dual band wifi signal when Airplane Mode is On? I was able to scan the same dual band signal on other phones and tablets on other brands while on Airplane mode.
Is this normal to samsung or a known issue?

I just tested, I can still scan and connect to 5GHz Wifi on airplane mode.

Tried it again just now but still cannot scan and find my 5ghz wifi. My router has to ssid, 2.4Ghz and 5Ghz. When I'm on Airplane Mode, i can only scan the 2.4Ghz. Not sure if it depends on the router. I'm having TP-Link Archer C7.

jhannbernas said:
Tried it again just now but still cannot scan and find my 5ghz wifi. My router has to ssid, 2.4Ghz and 5Ghz. When I'm on Airplane Mode, i can only scan the 2.4Ghz. Not sure if it depends on the router. I'm having TP-Link Archer C7.
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Click to collapse
it maybe the router, i just tried and I can detect 5ghz while Airplane mode, are there any other devices connected to the 5Ghz band?

No problem here, Sprint Qualcomm version.

jhannbernas said:
Tried it again just now but still cannot scan and find my 5ghz wifi. My router has to ssid, 2.4Ghz and 5Ghz. When I'm on Airplane Mode, i can only scan the 2.4Ghz. Not sure if it depends on the router. I'm having TP-Link Archer C7.
Click to expand...
Click to collapse
Nah, nothing to do with the router.
Plus I have a TP-Link I have an Archer D9.
Maybe try setting it to a specific channel, not using auto channel.

Jomari29 said:
it maybe the router, i just tried and I can detect 5ghz while Airplane mode, are there any other devices connected to the 5Ghz band?
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Yes, there are other devices connected to the router.

the_scotsman said:
Nah, nothing to do with the router.
Plus I have a TP-Link I have an Archer D9.
Maybe try setting it to a specific channel, not using auto channel.
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Click to collapse
My router setting is not set to automatic and I selected the channel manually. Will try to do some things on my router later.

I managed to make the 5Ghz wifi work while on airplane mode. I change the router channel (lower channel). I manually selected a higher channel previously but after changing to lower channel, it is fully working now.

jhannbernas said:
I managed to make the 5Ghz wifi work while on airplane mode. I change the router channel (lower channel). I manually selected a higher channel previously but after changing to lower channel, it is fully working now.
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I confirm this is the fix!
Im in Australia with an Optus-branded Galaxy S7 G930F.
And I found that when in Flight-mode, it doesnt detect any 5ghz WiFi channal above #48 !!!
So if you're having issues detecting 5ghz WiFi when in flight mode, just configure your router to use channel #48 or below.

I Have the same problem with my s7 edge. And i fix it with changing the region of wifi -
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Wow it worked lol. Never knew. Ty

falio said:
I Have the same problem with my s7 edge. And i fix it with changing the region of wifi -
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Click to collapse
Your 'channel' setting is set to Auto...
So its likely that the router just happened to have Automatically chosen channel #48 or below.
The status in your router might tell you which channel is currently elected.
Or you can install a WiFi-analyser app on your phone so see what channel your WiFi is using.

@wildchill, no man i fix it. Just i change wifi region from bugarian to american

5ghz wifi doesnt appear in my oneplus 5

In my oneplus 5 2.4ghz wifi is working smoothly but 5ghz SSID is not showing . However this 5ghz SSID is working for iphone and mac .
Here is my phone's about.
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Which channel are you using at 5ghz?
I had the problem with my huawei and now with my op5 with channels higher 100.
Try a lower channel - like me at the moment 36. Perfect for all my devices.

JimKnopf13 said:
Which channel are you using at 5ghz?
I had the problem with my huawei and now with my op5 with channels higher 100.
Try a lower channel - like me at the moment 36. Perfect for all my devices.
Click to expand...
Click to collapse
still having same issue . Currently i am using Xiaomi router 3 .

Mhh, you can try: Settings -> Backup & Reset and selecting the Network Settings reset option. This will lead to your OnePlus 5 forgetting all Wi-Fi and paired Bluetooth devices.
After resetting the network settings, reboot your 5 and then try again. If this not fix your problems I don't know.

JimKnopf13 said:
Mhh, you can try: Settings -> Backup & Reset and selecting the Network Settings reset option. This will lead to your OnePlus 5 forgetting all Wi-Fi and paired Bluetooth devices.
After resetting the network settings, reboot your 5 and then try again. If this not fix your problems I don't know.
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i dnt know whats wrong tried a lot but doesn't working

I got this probleme on my samsung s tablet with France region software. Il look like the 144 and up wifi channels are only in us and some international devices ignore them. So I put a lower wifi channel 56 i think and it worked.

If you're using Magisk. You could check out (my) Magisk mod https://forum.xda-developers.com/apps/magisk/magisk-oneplus-5ghz-mod-t3656016 it changes the wifi region to 'EU'. I can see and connect to channel 149 for example with this mod.

OnePlus seems to have buggy 5G wifi support, this configuration works on mt OnePlus 5T: Band: 36 (5.180 GHz), Width: 80 Mhz, SideBand: Lower

My problem with 5Ghz wifi is slightly different. While it shows very nice download speed (260-300Mb), the upload is barely reaching 1Mb (while me standing 1 meter away from the router). It's not impossible to upload a photo to cloud or have a call over Viber for example. I tried this and it didn't work:
Resetting all networks settings and rebooting the device
Doing factory reset. I actually rooted my phone without a full backup lately.
My observation: phone shows very nice speed on 5Ghz WiFi without the SIM or when SIM data is switched off. Looks like OP5 modem messes the WiFi connection somehow when mobile data (4G) steps in.
My router is Xiaomi 4A Gigabit edition, by the way.
Did anyone face the same?

it work for me when change channel to 36 (36-48 worked fine)