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Can't connect to router after updtae to 4.0.4?

Hi everybody,
After a message for software update I updated my tab 2 7 to Android version 4.0.4.
My tablet isn't rooted or anything. All works fine, but I can't see my home network anymore. Can't connect to my router anymore.
The Wifi is fine, because I can connect with my Samsung Galaxy S2.
I tried resetting my router and even did a factory reset for my tab 2 7, but nothing.
It sees other networks, but not the one from my router though.
I have a Dlink Dir-655 router with the latest firmware, 1.31EU.
What should I do?
Johanna

johanna52 said:
Hi everybody,
After a message for software update I updated my tab 2 7 to Android version 4.0.4.
My tablet isn't rooted or anything. All works fine, but I can't see my home network anymore. Can't connect to my router anymore.
The Wifi is fine, because I can connect with my Samsung Galaxy S2.
I tried resetting my router and even did a factory reset for my tab 2 7, but nothing.
It sees other networks, but not the one from my router though.
I have a Dlink Dir-655 router with the latest firmware, 1.31EU.
What should I do?
Johanna
Click to expand...
Click to collapse
this problem is with most of peoples who updated their tabs with 4.0.4.
Wait for samsung to fix it.
I have also read that some users connects by turning wifi on and off several times.....
And pls tell when did you recieved update and your region...

I wait then
Droidlover123 said:
this problem is with most of peoples who updated their tabs with 4.0.4.
Wait for samsung to fix it.
I have also read that some users connects by turning wifi on and off several times.....
And pls tell when did you recieved update and your region...
Click to expand...
Click to collapse
Ok. I got the update I think it was thursday 19 July 2012. I live in the Netherlands, Europe.
Johanna

Fix?
johanna52 said:
Ok. I got the update I think it was thursday 19 July 2012. I live in the Netherlands, Europe.
Johanna
Click to expand...
Click to collapse
A last question: any idea when such a fix will be available? It seems to me that if Samsung updates the first thing that should work is making contact with the internet.
Johanna

johanna52 said:
A last question: any idea when such a fix will be available? It seems to me that if Samsung updates the first thing that should work is making contact with the internet.
Johanna
Click to expand...
Click to collapse
Were you able to find a workaround? I just got mine and it came with 4.0.4 already and won't connect to my router. It will connect to my phone's wireless hotspot, but that's a bit slow...

I use p3100 with stock rom 4.0.4 and have similar problem. Sometimes when i turn on wifi, my tab can't connect to router. If i restart my tab, it connects immediately. I've restored to factory setting but not solve it. Wifi of my tab is weaker than my HD2.

Wifi bug - connects to network, but not internet

I'm experiencing a bug on my Nexus 5, when I first unboxed my device and setup this problem arise for the first time, problem is Nex 5 is connected to my home wifi network but no internet connection/data transmission !! at that time I tinkered a little bit like forget network and reconnected it then it was fixed, after that this problem rarely appear. Then comes the real problem yesterday I rooted my phone then it wont connect to internet same as before connection is accepted and have full strength signal but not connecting to internet, I've tried rebooting, forgetting and connecting, troubleshooted PC etc but nothing seems to fix the problem !! I double checked my network like I connected my tab with wifi and it's working perfectly fine.
Is this a common/known bug with Nexus 5 ? Or it's just me ? (h/w issue)
Any known fix other than I mentioned ?
Does rooting caused this problem appear more frequently ?
Any response will be highly appreciated.
Thank you

Try connecting to a different network, it may be a compatibility issue. Also try rebooting your router/wireless. If that doesn't work then try restoring factory image.
If none of those options fix it then there could be a problem with your Nexus 5's hardware

Fallon9111 said:
Try connecting to a different network, it may be a compatibility issue. Also try rebooting your router/wireless. If that doesn't work then try restoring factory image.
If none of those options fix it then there could be a problem with your Nexus 5's hardware
Click to expand...
Click to collapse
I'm now flashing factory images, if that doesn't work I'll do a replacement.

I have this issue too, with different WiFi routers.
(Full stock Nexus 5)

Out of intetrest what countries are you connecting in. When I had a Desire HD I had trouble connecting to Turkish routers. Different frequencies? Have you ever connected to your router with an actual connection?

Have yu tried disabling wifi optimzation?
Sent from my Nexus 5 using xda app-developers app

I did tried with each and every option toggled with but still no way.
Sometimes out of nothing it gets ok then goes bad again.
I'm from India and using Teracom router. Funny thing is my tab here working just fine with my home wifi network, I'll try with another wifi network tomorrow.

albertpaulp said:
I'm experiencing a bug on my Nexus 5, when I first unboxed my device and setup this problem arise for the first time, problem is Nex 5 is connected to my home wifi network but no internet connection/data transmission !! at that time I tinkered a little bit like forget network and reconnected it then it was fixed, after that this problem rarely appear. Then comes the real problem yesterday I rooted my phone then it wont connect to internet same as before connection is accepted and have full strength signal but not connecting to internet, I've tried rebooting, forgetting and connecting, troubleshooted PC etc but nothing seems to fix the problem !! I double checked my network like I connected my tab with wifi and it's working perfectly fine.
Is this a common/known bug with Nexus 5 ? Or it's just me ? (h/w issue)
Any known fix other than I mentioned ?
Does rooting caused this problem appear more frequently ?
Any response will be highly appreciated.
Thank you
Click to expand...
Click to collapse
5GHZ or 2.4?
Sent from my Nexus 7

PhilipTD said:
5GHZ or 2.4?
Sent from my Nexus 7
Click to expand...
Click to collapse
2.4 Ghz on my home router.

albertpaulp said:
2.4 Ghz on my home router.
Click to expand...
Click to collapse
Merely rooting the device would have no effect on the Wifi connection. Did you also install a custom rom or kernel?
Sent from my Nexus 7

PhilipTD said:
Merely rooting the device would have no effect on the Wifi connection. Did you also install a custom rom or kernel?
Sent from my Nexus 7
Click to expand...
Click to collapse
Nope I was on stock kernal/rom. It's just wifi problem is now more frequent.

albertpaulp said:
Nope I was on stock kernal/rom. It's just wifi problem is now more frequent.
Click to expand...
Click to collapse
Yeah, so it's a wifi thing. Did you try changing the channel on the router? You can use inSSider to find the best one.
Sent from my Nexus 7

PhilipTD said:
Yeah, so it's a wifi thing. Did you try changing the channel on the router? You can use inSSider to find the best one.
Sent from my Nexus 7
Click to expand...
Click to collapse
Thanks a lot, I'm now working on that.

Wifi connected, but no internet access

I get connected (no internet access) from time to time when I automatically connect to my school's network. It connects automatically and works in some buildings and doesn't in others. Turning wifi off and on fixes the issue. However, it is annoying to keep doing this. I had this issue on EMUI 4.1 and 5.0 (through charles and dload) so I don't think it's the version of android. Is anyone else having the same issue? Could it be the school network's issue? Thanks.

Have you tried using a different internet browser?

DarkGuyver said:
Have you tried using a different internet browser?
Click to expand...
Click to collapse
Sorry for the late reply. It's the WiFi in general. Apps that require Internet don't connect either. I did a factory reset and that didn't fix anything.

I have similar problem. When I first got my phone it was on firmware B160 without any problem. I updated to Nougat using firmware finder and the problem started to surface. I rolled back to B160 using their rollback tool, which then got updated to B162. It's much more stable than Nougat but not as good as the original firmware that I was on. Each time I had done factory reset after the update to make sure I am not in some dirty state. (L04 variant)

I have similar problem sometimes on my honor 8, it shows up excellent internet connectivity but failed to lunch apps like facebook or youtube etc(says no internet connection) while other hand samsung A8 run just fine with same wifi network at same time. I have done factory reset but nothing miracle happen still same problem. Frustrating....

If it's been on both 4.1 and 5 its either a hardware issue or the school network is bad

jkccl9 said:
If it's been on both 4.1 and 5 its either a hardware issue or the school network is bad
Click to expand...
Click to collapse
WiFi worked fine in the school network with my previous phone so it's not that.

user_57439 said:
WiFi worked fine in the school network with my previous phone so it's not that.
Click to expand...
Click to collapse
if the wifi works fine when you connect it to different wifi's then its the school network not much you can do. ps you wrote you have the problem from 4.1 to 5 in your OP.....

jkccl9 said:
if the wifi works fine when you connect it to different wifi's then its the school network not much you can do. ps you wrote you have the problem from 4.1 to 5 in your OP.....
Click to expand...
Click to collapse
I mean the school network worked with my old moto phone. It doesn't work all the time with my honor 8. It connects but doesn't have internet access.

user_57439 said:
I mean the school network worked with my old moto phone. It doesn't work all the time with my honor 8. It connects but doesn't have internet access.
Click to expand...
Click to collapse
Yes but if it can't connect even when you update to emui 5 then it will be the network.

wifi connection without Internet sounds like a dns issue. Any wrong advanced settings?

msnxda said:
wifi connection without Internet sounds like a dns issue. Any wrong advanced settings?
Click to expand...
Click to collapse
I leave it as default. I have to sign in with my university credentials. It connects with Internet most the time except in certain buildings.

i have the same problem
i have the same problem :crying::crying::crying::crying::crying::crying:
user_57439 said:
I get connected (no internet access) from time to time when I automatically connect to my school's network. It connects automatically and works in some buildings and doesn't in others. Turning wifi off and on fixes the issue. However, it is annoying to keep doing this. I had this issue on EMUI 4.1 and 5.0 (through charles and dload) so I don't think it's the version of android. Is anyone else having the same issue? Could it be the school network's issue? Thanks.
Click to expand...
Click to collapse

I have the exact same issue with mine that I just got about a month ago. It is at my work, which is a college. It worked just fine on all of my old phones.

anna.e.morris said:
I have the exact same issue with mine that I just got about a month ago. It is at my work, which is a college. It worked just fine on all of my old phones.
Click to expand...
Click to collapse
You tried restarting both phone and router?

sniperlife:D said:
You tried restarting both phone and router?
Click to expand...
Click to collapse
I have restarted my phone several times, but not the AP because it is at my work and there are about 50 AP's all over campus and I doubt they will restart them for me lol. Amazon sent me a replacement phone as well so now I have 2 phones doing the same problem, just at work.

anna.e.morris said:
I have restarted my phone several times, but not the AP because it is at my work and there are about 50 AP's all over campus and I doubt they will restart them for me lol. Amazon sent me a replacement phone as well so now I have 2 phones doing the same problem, just at work.
Click to expand...
Click to collapse
Then the problem is with the router itself. On my experience, some routers will let you connect but will not give you an internet connection.

anna.e.morris said:
I have restarted my phone several times, but not the AP because it is at my work and there are about 50 AP's all over campus and I doubt they will restart them for me lol. Amazon sent me a replacement phone as well so now I have 2 phones doing the same problem, just at work.
Click to expand...
Click to collapse
Definitely the issue is from the router

There was this point where my laptop can connect to the router but can't connect to the internet. After a few days it got fixed automagically.

Have you checked to see if your internet connection is active? If it isn't then you would need to contact your ISP for more assistance with this issue.

Sticky or Slow WiFi issue...?

Hi Guys,
My return to HTC from the Rezound days to the U11 have been less than smooth, it seems. First I have the strange SD card corrupt issue... And now I've got this "sticky" WiFi issue...
Let me try to explain:
So, I'm on Stock phone, straight set up as I got it from Amazon. My Internet bandwidth speed tests around 250mbps on an average. And the speeds remain the same when I experience the issue. Essentially what happens is that randomly my internet starts to "stick" meaning, I'd click on a link, it'll take forever and a half and then the page loads out of nowhere. Similarly, I'd be syncing files to Google Drive and my file upload or download starts crawling ?...
The fix: Toggle WiFi on and off and starts flying again! I haven't noticed the issue while on data (I think)...
I have optimizations off for WiFi. WiFi stays fast on other devices... So I'm not sure what's going on? Anyone else experiencing this?
Thanks!

Haven't experienced it for now on 11.
WiFi was something "messy" on my 10, but all good so far on 11.
Might be some router compatibility issues, from top of my head and without first morning coffee see if it happens on both 2.4 and 5 ghz frequencies and if you can disable ipv6 on your router..

ProFragger said:
Hi Guys,
My return to HTC from the Rezound days to the U11 have been less than smooth, it seems. First I have the strange SD card corrupt issue... And now I've got this "sticky" WiFi issue...
Let me try to explain:
So, I'm on Stock phone, straight set up as I got it from Amazon. My Internet bandwidth speed tests around 250mbps on an average. And the speeds remain the same when I experience the issue. Essentially what happens is that randomly my internet starts to "stick" meaning, I'd click on a link, it'll take forever and a half and then the page loads out of nowhere. Similarly, I'd be syncing files to Google Drive and my file upload or download starts crawling ?...
The fix: Toggle WiFi on and off and starts flying again! I haven't noticed the issue while on data (I think)...
I have optimizations off for WiFi. WiFi stays fast on other devices... So I'm not sure what's going on? Anyone else experiencing this?
Thanks!
Click to expand...
Click to collapse
what model wifi router? I have the same problem on my home router, no issue at any of my work routers.

OMJ said:
what model wifi router? I have the same problem on my home router, no issue at any of my work routers.
Click to expand...
Click to collapse
Thanks for your response. I believe it's the Comcast XB3 the big black router with the phone lines and 4 computer ethernet ports and etc... In the background, it might be a Cisco router... Have you found a fix for this?
Thanks!

ProFragger said:
Thanks for your response. I believe it's the Comcast XB3 the big black router with the phone lines and 4 computer ethernet ports and etc... In the background, it might be a Cisco router... Have you found a fix for this?
Thanks!
Click to expand...
Click to collapse
mines a different model...I've reported it to HTC but no fix yet

I've got Linksys at home. Are you seeing errors in logs on phone?
What did you report?
Sent from my HTC U11 using XDA-Developers Legacy app

OMJ said:
what model wifi router? I have the same problem on my home router, no issue at any of my work routers.
Click to expand...
Click to collapse
OMJ said:
mines a different model...I've reported it to HTC but no fix yet
Click to expand...
Click to collapse
Yeah man... What a shame... Potential to be a great phone otherwise! The SD card issue and now this WiFi issue is now driving me pretty annoyed! LOL!
riggsandroid said:
I've got Linksys at home. Are you seeing errors in logs on phone?
What did you report?
Sent from my HTC U11 using XDA-Developers Legacy app
Click to expand...
Click to collapse
Do you have this issue too bud?

ProFragger said:
Hi Guys,
My return to HTC from the Rezound days to the U11 have been less than smooth, it seems. First I have the strange SD card corrupt issue... And now I've got this "sticky" WiFi issue...
Let me try to explain:
So, I'm on Stock phone, straight set up as I got it from Amazon. My Internet bandwidth speed tests around 250mbps on an average. And the speeds remain the same when I experience the issue. Essentially what happens is that randomly my internet starts to "stick" meaning, I'd click on a link, it'll take forever and a half and then the page loads out of nowhere. Similarly, I'd be syncing files to Google Drive and my file upload or download starts crawling ...
The fix: Toggle WiFi on and off and starts flying again! I haven't noticed the issue while on data (I think)...
I have optimizations off for WiFi. WiFi stays fast on other devices... So I'm not sure what's going on? Anyone else experiencing this?
Thanks!
Click to expand...
Click to collapse
hi. i have the exact same problem as you but only on the 5ghz band. no option to select just 2.4 GHz band is a letdown. i use a virgin media hub 3.0 CH7465, ipv6 in stateless mode. had to disable 5ghz band from router to use the phone on wifi. no issues with mobile data. another issue, unrelated, is the vibration feedback on key press every now and again.

luvdog1st said:
hi. i have the exact same problem as you but only on the 5ghz band. no option to select just 2.4 GHz band is a letdown. i use a virgin media hub 3.0 CH7465, ipv6 in stateless mode. had to disable 5ghz band from router to use the phone on wifi. no issues with mobile data. another issue, unrelated, is the vibration feedback on key press every now and again.
Click to expand...
Click to collapse
Thanks for reporting and sharing, friend... I'm wondering why more people aren't seeing this or we just got a bad unit? Hopefully HTC finds out and does something about it... ?

Hello !
I am Naphtaline, owning a Sony Xperia XZ Premium and we are experiencing some of your issues there too.
It looks-like the problem could be related to Snapdragon 835 or Android Nougat but we can't be sure yet.
While our problem are not always exactly the same as you, we can say that it could be possible that there are Wifi issues on every snapdragon 835 based device yet on the market.
So, I made a survey to help us understanding this problem. We could then send the results to our brands to help them resolve it.
Please share this link to every people you know owning a flagship device, even if they don't experience the issue. This is very important !
If there are moderators here, if you could make a pinned topic about this survey, this would be marvelous !
https://goo.gl/forms/xePus2lCrjrBjk9b2
Thank you !

this issue is hard to replicate, I tried doing 20 or so speed tests yesterday trying to get it to fail but wouldn't...I know in the past when the issue was present, I switched to 2.4 with no change...I don't have this issue on most routers, only my home router (TP-Link Archer C7) but there again, the issue is so intermittent that it's possible it could happen on other routers but just not noticing.

Pretty sure I've been having this issue since day 1, but I'm trying to tell myself it's just my router, which it's not, as it happens on any wifi network. Also, phone suddenly decided to drop my Verizon signal, and now it won't reconnect. HTC has no fixes for either issue, and Verizon says it's HTC's fault for the signal. Definitely my last HTC phone.

With 5Ghz, if i go to a room little far from where the router is, it would not work but the Speedtest would show amazing speed. Whereas the 2.4Ghz works fine in that room.

FWIW guys the dropped connection effect is happening on my 2.4 SSID as well... Only, momentary fix is toggling off and on.... Have any of you tried a replacement? Maybe we got flawed units?

I am also experiencing this issue and it's driving me nuts! The quick fix is to toggle WiFi on/off, but I shouldn't have to do that.
I have the Xfinity XB3 router, but I do not think it's the router because I also have an S7 Edge where I am not experiencing this issue. I'm going to try using the 2.4 SSID, but from what I've read in this thread so far, it does not sound like that's going to help.

I too am experiencing this issue on the 5Ghz channel of my router. It seems to work initially, but only after a few minutes, it starts to have connection issues. When I switch to the 2.4 Ghz channel, it works just fine, always, no connection issues whatsoever. I just did the survey. Thanks for compiling this, I hope a fix is determined. I have the US Unlocked version, Viper U11 1.3.0 w/ Magisk v12 and module v1.10.1.

The problem is wifi drop-off. Even though the device is showing a good signal the data throughput is weak. If you move closer to the router the wifi will jump back into life. Its due to not having an iso standard for signal strength displays.
Beamed in by telepathy.

shivadow said:
The problem is wifi drop-off. Even though the device is showing a good signal the data throughput is weak. If you move closer to the router the wifi will jump back into life. Its due to not having an iso standard for signal strength displays.
Beamed in by telepathy.
Click to expand...
Click to collapse
You sure about that? I can be 10' from the router and have the issue

OMJ said:
You sure about that? I can be 10' from the router and have the issue
Click to expand...
Click to collapse
Same here..

For me it happens only with my home router networks (Linksys WRT1900ACS).
I found that this drop issue only happens when I'm far from my router when the signal is below -65dBm and only if the 5GHz network is on 80MHz-bandwidth and 2.4GHz is on 40MHz-bandwidth.
Lowering to 40MHz for 5GHz and 20MHz for 2.4GHz solves this problem completely for me.
Two important notes:
1) This behavior only happens with the U11. With other devices like the G6, iPhone 6s and etc. everything works fine at the same time when my wifi networks are on 5GHz 80MHz and 2.4GHz 40MHz.
2) On other 2.4GHz 40MHz-bandwidth networks that I've connected (other than my home's) I don't experience this drops at all with the U11, even when I'm very far away from the router and the signal is very weak.
So this problem seems to be only between the U11 and some routers on some configurations. Very strange

Mobile Network/WiFi does not turn on - HTC U11+

Hi!
Since a few months now, the WiFi and Mobile Network does not work on my U11+. If a SIM is inserted, it would not detect it, and when I try to turn on Wi-Fi, it tries to turn on but nothing happens. Attached a video for reference. For a few days out of the blue, the network and WiFi worked, but stopped after 3 days of working. So I'm not sure if its a hardware issue because of how it started working out of nowhere. I have tried all sorts of resets, nothing seem to work. I'm thinking of flashing a custom ROM, if any exist for the model.
However, have any of you faced this issue? Or know a fix for it? Would appreciate it a ton if you could help out. Thanks.
Your browser is not able to display this video.

xdahmedxd said:
Hi!
Since a few months now, the WiFi and Mobile Network does not work on my U11+. If a SIM is inserted, it would not detect it, and when I try to turn on Wi-Fi, it tries to turn on but nothing happens. Attached a video for reference. For a few days out of the blue, the network and WiFi worked, but stopped after 3 days of working. So I'm not sure if its a hardware issue because of how it started working out of nowhere. I have tried all sorts of resets, nothing seem to work. I'm thinking of flashing a custom ROM, if any exist for the model.
However, have any of you faced this issue? Or know a fix for it? Would appreciate it a ton if you could help out. Thanks.
View attachment 5581731
Click to expand...
Click to collapse
Since the shutdown of the 3g Network by ATT, I have had a similar issue. Eventually, I reset the phone but still the wi-fi won't turn on. The phone currently lacks internet connectivity and thus is pretty much useless. I don't see any responses to your post of from April but if you have any insights from other sources how to resolve the issue and get wi-fi working again, it would be great to know about it. Thanks.

xdahmedxd said:
Hi!
Since a few months now, the WiFi and Mobile Network does not work on my U11+. If a SIM is inserted, it would not detect it, and when I try to turn on Wi-Fi, it tries to turn on but nothing happens. Attached a video for reference. For a few days out of the blue, the network and WiFi worked, but stopped after 3 days of working. So I'm not sure if its a hardware issue because of how it started working out of nowhere. I have tried all sorts of resets, nothing seem to work. I'm thinking of flashing a custom ROM, if any exist for the model.
However, have any of you faced this issue? Or know a fix for it? Would appreciate it a ton if you could help out. Thanks.
View attachment 5581731
Click to expand...
Click to collapse
i have the same problem, do you have any updates

Gizur said:
Since the shutdown of the 3g Network by ATT, I have had a similar issue. Eventually, I reset the phone but still the wi-fi won't turn on. The phone currently lacks internet connectivity and thus is pretty much useless. I don't see any responses to your post of from April but if you have any insights from other sources how to resolve the issue and get wi-fi working again, it would be great to know about it. Thanks.
Click to expand...
Click to collapse
do you have any update for this ?