Has anyone else had any problems connecting to wifi on the 5Ghz band? When I connect it goes like this:
Authenticating
Saved
Connecting
Authenticating
Authentication problem
I had the same problem with the Galaxy Nexus but I assumed that it was just because it was old. I would be tempted to say it might be a problem with my router but I have two Windows laptops which connect to the 5Ghz network flawlessly. When attempting to connect my phone to the 2Ghz it works fine.
My router is a new virgin media "Super router" with software version V1.01.26" and hardware version 3.11. My Nexus is the 32GB black from the UK playstore.
Is anyone having similar issues?
Thanks.
Same problem
I'm having the same problem. It's super frustrating. My friend had the same thing happen when he got his HTC One. He eventually had to buy a new router. My Router is brand new, so I would hope that its able to work, but so far no luck.
This is from the Nexus 4 forums, and this is how i get connected to 5ghz wifi on my nexus 5
Just a few facts about 802.11a/802/11n 5GHz. I have simplified things a bit since the detail is not important.
In many countries/areas of the world some of the channels in the 5GHz band used by 802.11a/802.11n are designated as
Dynamic Frequency Selection or "DFS". This means that these channels are shared with military/civilian radar and
perhaps other transmissions. As such any wireless 802.11a/802.11n device using those freqiencies is required to
detect a radar transmission on a channel it is using and switch channels in order to avoid interfering with ("stepping on")
the radar signal. The device may not return to the channel for 30 minutes. Most routers and wireless "cards" in
laptops/desktop computers implement this functionality. Many mobile devices do not implement such functionality so are
not allowed to use the DFS channels.
This creates problems if your router chooses to use a DFS channel and you have a device which is not allowed to use
those channels. The Nexus 4 and Nexus 10 devices fall into the category of devices which are not allowed to use DFS
channels. So if your router chooses to use a DFS channel the N4 and N10 will not see the router at all.
In the US (you can google to see the channel list throughout the world)
Non-DFS channels: 36, 40, 44, 48, 149, 153, 157, 161, 165
DFS channels: 52, 56, 60, 64, 100, 104, 108, 112, 116, 132, 136, 140
My router "likes" channel 132. I force it channel 44 so I can see it from my N10.
The N10 also implements 40 MHz bandwidth. That is what the 40 in MiMO HT40 specification means. It works very well
using 40MHz *if* your router handles it properly. I have seen some which do not. I do not know if the N4 supports 40 MHz
bandwidth or not. However if the router implements 40MHz properly then it can support both 20MHz and 40MHz bandwidth
devices at the same time. I have both on my router.
Hope this helps.
kees
source: http://forum.xda-developers.com/showpost.php?p=38254925&postcount=26
Solved
I got mine to work! I used the manual input for the wifi. I put in my network's name and password and it connected immediately. Hope it works for you too. :good:
I had this issue as well and had to change pre shared key type from ascii 63 characters to hex 64 on the router
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.
The stock ROM (Lollypop but older version too) limit 5G WiFi channels to 36-48 or 149-165, or something like that, basically all US non DFS channels.
I figured how to connect the Shield Tablet to DFS channels.
It depends on the builtin WiFI module, which can be either Broadcom or Marvel.
My Shield Tabled came with Broadcom 4324 and by changing ccode inside the /system/etc/nvram_43241.txt (for other WiFI chips other nvram file applies) from whatever to ccode=ALL I am able to connect to mid band 5G channels.
BUT, for channels above 48, once connected to WiFi the controller cannot be connected anymore.
I need somebody who can help troubleshoot the controller issues with DFS channels on 5Ghz networks.
I can provide logs and whatever else might be needed.