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Wifi SSID Unavailable

Hey All,
I am currently running AOKP Jelly Bean, and I am having an issue with my WiFi network. When I turn WiFi on on the phone, I see all of my neighbors' SSIDs that my computer sees, however, my SSID doesn't appear at all. I didn't have this issue on stock; the phone would connect when I parked my car outside my place.
I have tried:
1. Manually entering my SSID and connection info. After this it just says the network is out of range.
2. Activating the WPS connection option on the phone and pressing the WPS button on the router.
3. Doing the manual WPS method with the PIN from the phone in the router setup.
4. Changing the WiFi broadcast channels, strength, GHz, and b/g/n.
5. Enabling only the approved MAC addresses to connect to the router.
6. Restarting the router.
Nothing has worked so far. I downloaded WiFi Analyzer on my phone, and my network doesn't show up. If I didn't have two other computers connected, I would think something is wrong with the router. Any suggestions? I would have posted this in the AOKP thread, however I don't yet have permission. Thanks!

I doubt it is your phone because you see your neighbors wi-fi. So I'd power cycle the router (I see you did that once already). And also ensure it's not operating on high band wireless N (5.8 Ghz I think) but sounds like that's not the case because it worked on stock. Are you broadcasting your SSID?
Veritas327 said:
Hey All,
I am currently running AOKP Jelly Bean, and I am having an issue with my WiFi network. When I turn WiFi on on the phone, I see all of my neighbors' SSIDs that my computer sees, however, my SSID doesn't appear at all. I didn't have this issue on stock; the phone would connect when I parked my car outside my place.
I have tried:
1. Manually entering my SSID and connection info. After this it just says the network is out of range.
2. Activating the WPS connection option on the phone and pressing the WPS button on the router.
3. Doing the manual WPS method with the PIN from the phone in the router setup.
4. Changing the WiFi broadcast channels, strength, GHz, and b/g/n.
5. Enabling only the approved MAC addresses to connect to the router.
6. Restarting the router.
Nothing has worked so far. I downloaded WiFi Analyzer on my phone, and my network doesn't show up. If I didn't have two other computers connected, I would think something is wrong with the router. Any suggestions? I would have posted this in the AOKP thread, however I don't yet have permission. Thanks!
Click to expand...
Click to collapse

lampel said:
I doubt it is your phone because you see your neighbors wi-fi. So I'd power cycle the router (I see you did that once already). And also ensure it's not operating on high band wireless N (5.8 Ghz I think) but sounds like that's not the case because it worked on stock. Are you broadcasting your SSID?
Click to expand...
Click to collapse
I retried power cycling the router (and modem) this morning with no improvement. Right now it is set to broadcast b/g/n with the channel set to auto and at 2.4 GHz. Also, I am broadcasting my SSID according to the router settings and being able to see it on my MBA and iPad. No luck yet!
Now that I have access to the Development threads, I have gone ahead and posted this in the AOKP Jelly Bean thread. If a moderater sees fit to delete this, I understand. Thanks to all those who took a look!

Are you in the US (or using a US phone)? Reason I ask is that I believe phones here are restricted from certain channels of wi-fi not approved by the FCC. So if you're router is not a US model and were auto-selecting you wouldn't necessarily see it. Might try assigning channel 1 just to eliminate that as a possibility... Although if you are in the US and your router was purchased/leased here then it's not that.
Veritas327 said:
I retried power cycling the router (and modem) this morning with no improvement. Right now it is set to broadcast b/g/n with the channel set to auto and at 2.4 GHz. Also, I am broadcasting my SSID according to the router settings and being able to see it on my MBA and iPad. No luck yet!
Now that I have access to the Development threads, I have gone ahead and posted this in the AOKP Jelly Bean thread. If a moderater sees fit to delete this, I understand. Thanks to all those who took a look!
Click to expand...
Click to collapse

lampel said:
Are you in the US (or using a US phone)? Reason I ask is that I believe phones here are restricted from certain channels of wi-fi not approved by the FCC. So if you're router is not a US model and were auto-selecting you wouldn't necessarily see it. Might try assigning channel 1 just to eliminate that as a possibility... Although if you are in the US and your router was purchased/leased here then it's not that.
Click to expand...
Click to collapse
Yep. US phone (T-Mobile) with a D-Link router I bought from Amazon. And it did work when I was on stock with no issues.

When you figure it out please post back what the issue was.
Sent from my HTC VLE_U using xda app-developers app

It seems I posted at an inopportune time in the other thread. The discussion has moved on to the 5th build of the rom and my post looks to be forgotten. If anyone has any suggestions here, I would appreciate it!

Veritas327 said:
It seems I posted at an inopportune time in the other thread. The discussion has moved on to the 5th build of the rom and my post looks to be forgotten. If anyone has any suggestions here, I would appreciate it!
Click to expand...
Click to collapse
I answered your post in the aokp thread. I'm having an issue where my phone connects to my router but no data is transferred. I just broke out my old belkin g router and problems solved. Yes running 2 routers isn't ideal but it works.
Sent from my HTC One S using xda premium

Just in case it helps anyone: if you run two routers on a common band, whether with the same SSID or not, make sure they are not on the same channel or near channels; i.e. channels 1,6, and 11 work well together. (Although six is frequently a default and I assume most people never change it so your neighbors may already have it saturated.)
I believe Veritas327 said in their original post that they already tried G-band - so, mikeyinid, do you think it has more to do with the older hardware rather than the frequency? I'm really just curious at this point...
mikeyinid said:
I answered your post in the aokp thread. I'm having an issue where my phone connects to my router but no data is transferred. I just broke out my old belkin g router and problems solved. Yes running 2 routers isn't ideal but it works.
Sent from my HTC One S using xda premium
Click to expand...
Click to collapse

[Q] No 5ghz wireless detection with Lollipop

Hi all,
Strange problem following my OTA lollipop update yesterday. My (UK WIFI version) Shield tablet is unable to detect my router's 5ghz signal. Kit Kat had no problems and all my other devices can still see it fine. I have also tried changing the settings on my router to see if Lollipop is more fussy about frequency/band etc, but still no joy
Anyone else having strangeness with this? Or is it just me?

ClownShoes said:
Hi all,
Strange problem following my OTA lollipop update yesterday. My (UK WIFI version) Shield tablet is unable to detect my router's 5ghz signal. Kit Kat had no problems and all my other devices can still see it fine. I have also tried changing the settings on my router to see if Lollipop is more fussy about frequency/band etc, but still no joy
Anyone else having strangeness with this? Or is it just me?
Click to expand...
Click to collapse
I flashed the US ROM last night, and during setup it took maybe an additional 20 seconds before the 5ghz routers (including mine) to show up in the list. 5ghz has always been kinda weird for me though. On a few occasions I've had to disable WiFi, wait 10 seconds, then restart so that the tablet will connect.

I also have the UK wifi version, and my tablet even connected first to the 5ghz network, I was actually surprised.

No issues here with 5ghz wireless.

pyro9219 said:
I flashed the US ROM last night, and during setup it took maybe an additional 20 seconds before the 5ghz routers (including mine) to show up in the list. 5ghz has always been kinda weird for me though. On a few occasions I've had to disable WiFi, wait 10 seconds, then restart so that the tablet will connect.
Click to expand...
Click to collapse
flakz0r said:
I also have the UK wifi version, and my tablet even connected first to the 5ghz network, I was actually surprised.
Click to expand...
Click to collapse
Thanks guys,
It's very odd, because I run wifi analyzer at home and it doesn't show my 5ghz network at all, yet in the office it does show the 5ghz one.
It was working before the update and all my other devices can still connect fine, so a real mystery

NZtechfreak said:
No issues here with 5ghz wireless.
Click to expand...
Click to collapse
Thanks. Does sound like just me then

Reboot the router?

I'm having this issue with my Nexus 4: http://forum.xda-developers.com/nexus-4/help/lollipop-5ghz-wifi-t2945330

Upon further inspection, it appears the only 5ghz channels that work are the first couple in band A (36 - 48) Nothing else seems to work.
Can anyone else confirm this behaviour? Try using a 5ghz channel other than 36 - 48
Band A : 5150 - 5350 MHz (channels 36 - 64)
Band B: 5470 - 5725 MHz (channels 100 - 140)
This is pretty rubbish if this is the case, as the band B channels allow a higher output and give me a much stronger signal in my house

ClownShoes said:
Upon further inspection, it appears the only 5ghz channels that work are the first couple in band A (36 - 44) Nothing else seems to work.
Can anyone else confirm this behaviour? Try using a 5ghz channel other than 36 - 44
Band A : 5150 - 5350 MHz (channels 36 - 64)
Band B: 5470 - 5725 MHz (channels 100 - 140)
This is pretty rubbish if this is the case, as the band B channels allow a higher output and give me a much stronger signal in my house
Click to expand...
Click to collapse
I can only connect when I use channels 36-48, Band A UNII 1. Can't even detect the AP with WiFi Analyzer on the shield if I go above 48.
Using the non-US 32GB LTE version in the EU, btw, same frequencies are allowed here as in the US.

debunk said:
I can only connect when I use channels 36-48, Band A UNII 1. Can't even detect the AP with WiFi Analyzer on the shield if I go above 48.
Using the non-US 32GB LTE version in the EU, btw, same frequencies are allowed here as in the US.
Click to expand...
Click to collapse
Sorry, you're right 48 does also work.
So that's confirmed then, they have for some reason heavily limited the 5ghz channel selection! I wonder why?
It's not a hardware limitation as it was working fine with KitKat, so I wonder whether it's possible to get the other channels unlocked?

Just to be sure, ClownShoes, does channel 140 work for you? I can't test this because my fritzbox router doesn't have an option to change channel width to 20MHz, and channel 140 isn't available to me for this reason.

Same problem for me here. No 5ghz detected when my Xperia Z1 Compact detect it . Even Wifi Analyzer can't see it . I restarted my tablet & stuff, nothin' . I'll try to make a nandroid backup, make a fresh install and I will see the result.

Same problem for me here with my samsung galaxy note 3 32 gb(sm-n9005). If I restart router phone view and connect to 5 GHz. When phone leave coverage are for same hours when come back don't see 5 Ghz wireless. This is strange because I have another phone with windows which work perfect. I will try to change wireless channel if don't work, I thing serious to go back at android 4.4.2
Update: I changed channel from auto to 48 and works.

Just dropping in to say I had the same issue: I had my router on channel 112 and the Tablet wasn't even seeing it.
Switched to 48 and everything works fine now.

Same issue here, hoping Android 5.1 fixes this silly issue. I was wondering why i couldnt see the 5Ghz network at channel 140, 80mhz. had to bring it down to channel 48.

US wifi version here. 5.1 Lollipop, stock rooted.
I can connect to channel 149 with turbo mode (40MHz channel width) & the upper Extension channel, but WiFi analyzer shows my router is broadcasting on channel 153. I tried so many other channels & combinations but this is as high up as I could go & have the tablet connect. It did, however, see channel 161 but got an authentication error & wouldn't connect with the router.
So, back to 149. The signal is slightly stronger & have better throughput than channel 48!
On a side note...I use 5GHz here in this LARGE apartment complex because everyone here is on Verizon FIOS or Cox Communications, so Wi-Fi Analyzer sees 17 (give or take a few for signal strength or weakness) access points around my place & the 2.4 band is completely choked up! There is only 1 other router close by on 5GHz, so using that band is the only option for wireless internet here. I don't use Verizon's wireless AP. They only have 2.4 wireless, no 5. My Netgear simultaneous dual band router is plugged into the back of their cable modem & my Netgear is on 192.168.2.1. That way I can use DD-WRT & my own router instead of theirs for wireless. Easy-Peasy!:good:

I have the same issue. After switching my channel from 100 to 40 the 5GHZ wifi showed up on (two) shield tablets just fine

I believe the SHIELD Tablet only supports United States Non-DFS channels, so 36-48 and 149-165. I personally have mine on Channel 149 and 80MHz bandwidth.

Wi-Fi Issues on MM - Original Shield Tablet

Alright, first let me say that I have had zero issues with this tablet until I upgraded to MM.
For some reason, I am having constant issues with the Wi-Fi either dropping, or changing channels. If I set the Wi-Fi to 5Ghz only, it will eventually switch over to 2.4Ghz. If I set the wireless to automatic, it will constantly switch back and forth between 2.4Ghz and 5Ghz. Setting the wireless to just 2.4Ghz still results in random drops.
So far, I have experienced this issue on all of the major MM ROMs found here in the NVidia Shield section. I event restored my tablet with the latest image from NVidia.
Is this just an inherent issue with MM on the original shield tablet? Am I going to be stuck using 5.11?
The only thing I haven't done is flash back to the original stock image and do OTAs back the latest MM update.
Any help would be appreciated.

I agree, wifi on lollipop was miles better. I also think lollipop was better on the whole. I'm on stock unrooted.

Setting the "Wi-Fi frequency Band" to "5 GHz only" shouldn't drop you to 2.4 GHz. This setting works perfectly for me as setting it to "2.4/5GHz only" results in the other band completely shut off.
If your SSID is identical for 2.4GHz and 5GHz, then yes, it can switch back and forth. However since most Wi-Fi clients are too stupid to know when to switch over, it is highly recommended to use a different SSID for 2.4 and 5GHz.
On Lollipop, there is an Android bug (it affects my phone too) where if you have SSID and SSID-5G or SSID_5G (and perhaps others), even if you never joined SSID, it'll occasionally drop the 5GHz connection and connect to 2.4GHz. This is apparently fixed on Marshmallow as my LTE tablet has remained connected to 5GHz since the update.
At least for me, my WiFi experience drastically improved with Marshmallow. So my suggestion is to make sure the 2.4 and 5GHz SSID's are different and check for interference from the neighbors using an app like WiFi Analyzer or NetX. I recommend NetX over WiFi Analyzer as it can also show you WiFi SSID's that span 40MHz.
Also note that your own home devices can also cause interference. The Roku box w/ WiFi Direct is notorious for this.

Isira said:
Setting the "Wi-Fi frequency Band" to "5 GHz only" shouldn't drop you to 2.4 GHz. This setting works perfectly for me as setting it to "2.4/5GHz only" results in the other band completely shut off.
If your SSID is identical for 2.4GHz and 5GHz, then yes, it can switch back and forth. However since most Wi-Fi clients are too stupid to know when to switch over, it is highly recommended to use a different SSID for 2.4 and 5GHz.
On Lollipop, there is an Android bug (it affects my phone too) where if you have SSID and SSID-5G or SSID_5G (and perhaps others), even if you never joined SSID, it'll occasionally drop the 5GHz connection and connect to 2.4GHz. This is apparently fixed on Marshmallow as my LTE tablet has remained connected to 5GHz since the update.
At least for me, my WiFi experience drastically improved with Marshmallow. So my suggestion is to make sure the 2.4 and 5GHz SSID's are different and check for interference from the neighbors using an app like WiFi Analyzer or NetX. I recommend NetX over WiFi Analyzer as it can also show you WiFi SSID's that span 40MHz.
Also note that your own home devices can also cause interference. The Roku box w/ WiFi Direct is notorious for this.
Click to expand...
Click to collapse
Having the same SSID for different frequencies should never be a problem. As a system administrator, I have never run into an issue such as this, unless it you have your device set to "automatic" so that it can swap back and forth between the two different bands. If I set the radio to 5Ghz only, then it should stay on 5Ghz, and vice versa with 2.4Ghz.
The issue appears to be something with MM and the original shield tablet. I reconfirmed that flashing back to the LP image I have no problems with the Wi-Fi at all.
I guess I'll keep plugging away at trying various things until I get this figured out or someone else points me in the right direction.

Just got my brand new replacement tablet from Nvidia from the battery recall. came loaded with 5.11 and zero wifi issues. I updated to 6.01 and boom! wifi issues. That means I have two tablets with the same issue. Something is up with 6.01 and the original shield tablet.

Sounds like an incompatibility with your specific network setup and the SHIELD Tablet/Google Marshmallow.
I have two SHIELD LTE Tablets both running Marshmallow 6.0.1 and I have zero issues. I find the 2.4GHz/5GHz only modes work as intended. However my 2.4 and 5GHz SSID's are different, whereas you apparently have the same SSID's for both bands.
For an experiment, I created a single identical guest SSID for the 2.4 and 5GHz networks and put the tablet in 5GHz mode. What I noticed is that 5GHz only does indeed fail occasionally, but the 2.4GHz behavior is interesting. It will only pick up all SSID signals for the single 2.4GHz channel the Guest SSID is associated with, so in my case all 5GHz channels and only Channel 1 of 2.4GHz. After a few minutes of usage, the tablet seems to go back to 5GHz only mode and the Channel 1 2.4GHz SSID signals disappear. Similarly, If I put the tablet in 2.4GHz only mode, then it will also occasionally pick up the single 5GHz channel the Guest SSID is associated with, so all 2.4GHz channels and only Channel 149 of 5GHz.
If I have my tablet connected to an SSID that is different on both 2.4/5Ghz bands, then 2.4/5Ghz only modes work as intended.
So yes, I can confirm that if you have an identical SSID for 2.4 and 5GHz modes, then the 2.4/5GHz only mode will not work properly under Marshmallow. The suggested workaround is to have different 2.4/5GHz SSID's.

Here is my question. How did I go from having zero issues on every other Android OS before marshmallow, but now this is an issue? If I load an older rom based on 5.11 onto my tablet, I don't have a single issue. To me this points to an issue with MM

TheLastBoyScout said:
Here is my question. How did I go from having zero issues on every other Android OS before marshmallow, but now this is an issue? If I load an older rom based on 5.11 onto my tablet, I don't have a single issue. To me this points to an issue with MM
Click to expand...
Click to collapse
Yes, we've already established and confirmed that there is a Marshmallow related bug with your specific use case. I have provided a workaround, which is to create a separate SSID for the 5GHz band. You have also provided a workaround, which is to downgrade to Lollipop. It is your choice to make.
You don't sound like somebody who understands software development. Basically, with every major Android OS release, Google can significantly change the underlying code which can introduce bugs. NVIDIA then takes that code and tries to make it work with the SHIELD Tablet which can introduce even more bugs.
There is a programming joke sung to the tune of "99 Bottles of Beer":
99 little bugs in the code.
99 little bugs in the code.
Take one down, patch it around,
127 little bug in the code...
Click to expand...
Click to collapse
Without a secondary Marshmallow device, I cannot confirm if the problem is on Google's end or NVIDIA's end. Nevertheless, I suggest reporting it to Google and NVIDIA. At the very least, Google can fix the problem before Android N is released, and maybe NVIDIA can fix it for a future Marshmallow release.

While I am not a programmer, I work with several programmers and do testing of software on a test system before updates are pushed out. I guess I incorrectly assumed NVidia would do the same.
Now, I've tried multiple times based off of CM and AOSP, in addition to stock (all MM based) and still have this issue, so I would assume it's an issue on Google's end.

TheLastBoyScout said:
While I am not a programmer, I work with several programmers and do testing of software on a test system before updates are pushed out. I guess I incorrectly assumed NVidia would do the same.
Now, I've tried multiple times based off of CM and AOSP, in addition to stock (all MM based) and still have this issue, so I would assume it's an issue on Google's end.
Click to expand...
Click to collapse
Honestly, this is an edge case that is rather difficult to diagnose and wouldn't even be detected under normal testing conditions. It's quite unfair to say NVIDIA didn't do any testing in this case.
I suggest submitting a highly detailed bug report to NVIDIA so that they can reproduce the issue. If NVIDIA fixes it and it is determined it is an issue with the base Android OS, they may submit the patch upstream to Google so hopefully it won't be an issue with future versions of Android.

No 5GHz Wi-Fi issue

Hello, my Galaxy S7 doesn't detect any 5GHz WiFi AP's.
Have searched some and see that I'm not the only one and some S6 users also have this issue.
Can anyone who also have this issue report it here with firmware versions. (Dial *#1234# to get the info)
My phone came With build G930FXXU1APB6 and now updated to G930FXXU1APF2, but that didn't fix the problem.
The csc is G930FOJV1APF2
And of course if anyone knows if there is a fix please post .
Is it software or hardware broken or did Samsung make some phones with 2.4GHz WiFi only modules?

is your phone stock? have you tried connecting to other 5ghz network other than your home´s? could be a router issue
1. try doing a factory reset (will lose your data) to see if it fixes the problem
2. consider installing new firmware

Maybe your router is not configured correctly. You can choose that the 5ghz network only supports 802.11b for instance. Check that your settings allows all WiFi.

ramanmono said:
Hello, my Galaxy S7 doesn't detect any 5GHz WiFi AP's.
Is it software or hardware broken or did Samsung make some phones with 2.4GHz WiFi only modules?
Click to expand...
Click to collapse
You need to check your Router settings.
If your router has the same SSID for the 2.4GHZ and 5GHZ bands rename the 5GHZ SSID also if you have an option that says Sync with 2.4GHZ under the 5GZ settings set that to No, if it is not already set to No..
For example if they are both called Router just make the name of the 5GHZ SSID Router-5GHZ, save the changes and wait a couple of minutes.
Turn off the wifi on your phone then back on again (do this in the Settings>WiFi) you should see the 5GHZ router name appear in the list of available devices as well as the normal one, just tap that put in the password and connect
This should work, the usual problem is that the router SSID where the names are the same the phone will connect to the 2,4GHZ as default, not always the case but the general cause of it not connecting to Smartphones.

I use the same name for 2.4 and 5 GHz, the phone automatically connects to the best available network. 5 GHz when I'm close to the router, 2.4 GHz when I leave the range of the 5 Ghz. When I return to the 5 Ghz range it connects to it automatically, but not always, then I have to stop and start the WiFi on the phone again to get on the 5 ghz.
Sent from my SM-G930F using Tapatalk

Still no 5GHz Wi-Fi
Hello, I have checked my router and also tried on other 5GHz routers, but still my phone doesn't see any 5GHz channels.
Has anyone tried a firmware for another region?
Am I really the only one on XDA with this problem?

WiFi country code
I have noticed that my 5 GHz does work, but ONLY if the router is manually switched to channel 36 for 5 GHz. My router is WRT 1900AC (4 antennas, bought from US)
I have read that it could have something to do with the wifi country code.
Max link on 5 GHz it is max 200 mbps, which still seems very low, since my non MIMO/single channel crappy laptop wifi also gets 200mbps.
And I heard people getting more then 800mbps ont their S7 phone.
Flashing my phone with an official unbranded firmware from the Netherlands (PHN CSC file), did not fix the WiFi issue.

WiFi Country Code in System file
I have come across this forum in which a user claims a fix, but the phone needs to be rooted.
Does anyone know if this is really the case? My phone is not rooted.

Was there ever a fix here?
My S7 (SM-G930F - BTU, using Oreo build U5ESD2) does not see any of the upper 5 GHz bands. I am trying to connect to a router that is configured to output ONLY on band 149, so there can be no 2.4 GHz "confusion." Changing the configuration to other upper 5 GHz bands doesn't help.

ramanmono said:
Hello, my Galaxy S7 doesn't detect any 5GHz WiFi AP's.
Have searched some and see that I'm not the only one and some S6 users also have this issue.
Can anyone who also have this issue report it here with firmware versions. (Dial *#1234# to get the info)
My phone came With build G930FXXU1APB6 and now updated to G930FXXU1APF2, but that didn't fix the problem.
The csc is G930FOJV1APF2
And of course if anyone knows if there is a fix please post .
Is it software or hardware broken or did Samsung make some phones with 2.4GHz WiFi only modules?
Click to expand...
Click to collapse
just change 5ghz ch no, 149 to 161 । that's it , no need to change firmware

Question Anyone found a way round 5ghz WiFi channel support p11pro (tb-j716f)?

Hi all,
I have had to hard code my 5ghz WiFi router channel to get my Chinese tablet and ROM (zui13) to connect. This is mentioned on other threads.
I noticed that with the 5ghz channel out of range, the tablet would also not connect to the 2.4Ghz channel with the same ssid.
I was wondering if anyone has found a workaround on the tablet to get the full channel range working. I don't want to risk changing region and breaking widevine or anything else, neither do I really want to hard code the 5ghz channel - the lower range are unavailable and are the best choice for my environment as no other use nearby from neighbours.
Any ideas?

Would love to know this too. They really do not want us ROW people buying up great value hardware without some teething pains do they!

Can yours detect Wi-Fi in your neighborhood?
If so, try different channel on your router or AP to see. You can unhide your SSID to see does it connect

As far as I know without access to the kernal source we cant change the available wifi channels to the chinese rom even with root.
So without the region cuange i rhink yall out of luck.

That is weird. I have no issue with both 5ghz and 2.4ghz. I can connect to both without issues.