Weird 5GHz WiFi Issue - Galaxy Tab S2 Q&A, Help & Troubleshooting

Hi. I just got my SM-T710 yesterday and it was on either 5.0.2 or 5.1.1. When I set it up, I was able to connect to my 5GHz SSID no problem. However, as soon as I Odin'd to 6.0.1, my 5GHz network disappeared. It can't see it and won't connect to it even if I add it in manually. I've been trying to fix it all day (even reflashed the 6.0.1 formware but I cant go back to 5.0.2 as it is U1 firmware) but nothing has worked. It is only my 5GHz network that is not showing up. All other 5GHz networks show up and I can connect to my 5GHz mobile hotspot fine. It's simply my own 5GHz network. I've also reset the router and confirmed that the network works on all my other devices. I'm at a loss as to what I can do next. Any pointers?
The tablet started ignoring more 5GHz networks so I tried CM 12.1 and it seems this is a bug with the latest stock update. It works fine on CM 12.1.

I have the same problem after upgrading to 6.0.1 UK ROM. Just found that flashing Canada 6.0.1 ROM solved my problem. Maybe you can try.

Related

Wifi on Cyanogen issues

I just finally got sick of waiting for an official Froyo(Bell isn't about to give me an upgrade anyhow.) So I went to a froyo rom that was based on one of the stock roms. But I figured since I'm rooted anyhow why not play around, and grabbed cyanogen 6.1 and installed it. Then I end up with the issue of its not connecting to my wifi, I have no issues on the stock 2.2 roms. One thing I have noticed is the cyanogen shows the network as wep, but it's actually wpa encrypted. I flashed into it from the stock without clearing it first and it worked until I shut off and came back to it. Any ideas on what might be the issue. I'm fairly new but I did look and couldn't find anything to fix this.
I assume you flashed 6.1 stable version? I have no issue whatsoever on my device (and I also used official froyo previously). Did you wipe all before flashing 6.1?
He said he "flashed without cleaning"...so I presume no wipe. This could be the problem, a wipe is strongly adviced if going to CM from a non CM ROM. Also check the number of WiFi channels set by default in advanced settings of wifi. It is set for 11 and if the router is set to 13 or 14 it could not work
Sent from my Legend using XDA App
I had the same problem when i was installing CM6.1. (with wipe)
The phone could just se a wep version of my network and not the wpa that i have. But after i turned on and off the wifi a couple of times i suddenly saw the wpa version of my network and after i connected to that the problem was solved. I also did click "forget network" on the wep version.
Hope this will help you
ricky007 said:
I had the same problem when i was installing CM6.1. (with wipe)
The phone could just se a wep version of my network and not the wpa that i have. But after i turned on and off the wifi a couple of times i suddenly saw the wpa version of my network and after i connected to that the problem was solved. I also did click "forget network" on the wep version.
Hope this will help you
Click to expand...
Click to collapse
Trying this now but no go. Sometimes will flash it as wpa and then jump back to wep. This is after a full wipe. What I was trying to say was once I flashed in without wiping and it worked for a bit but jumped right back to not working, after the phone going to sleep.
Bump.
Any insight into this issue? Still only reading my network as wep.
Try installing "WiFi Advanced Configration Editor" from the market. You should be able to change to WPA manually with it.
Did you try to reset your wifi router?sometimes the issues came up from wifi router, not the phone itself.
Mine is fine. I share my broadband wifi to my phone using connectify.
The only problem remains is wifi disconnect frequently, but I heard that it's due to a new kernel which I use (.32 kernel)
hope it helps
Ya reset the router a few times, and it still came up like that. I did install the wifi advance config software mentioned it seemed to fix it. I didn't actually set anything up on it and it seems to have fixed it. Thanks.
CM 6.1 messed up my wifi. Wiped everything, but it suddenly doesn't find my networks.
Wiped again and restored nandroid backup of working rom but STILL the same issue now!! Can I flash the wifi drivers again somehow?

WiFi problems on 4.4 stock i537

Hi everyone) I'am on stock official 4.4 update and I have problem with wifi (at&t i537 Active):
the phone finds some networks, but doesn't "see" others (including my home network, - and not only my, my friend's as well).
Tried to downgade to 4.3, but I couldn't even TURN it ON, because it just wouldn't switch to "ON".
Is there any way to fix the problem? (I guess it's a known samsung-software bug on i537)

[Q] i9000 can't 'see' my wifi network

I've just upgraded to Ressurection Remix Rom 4.4.2 (from 4.2.3 CyanAOSP), and everything is fine except the wifi. my i9000 finds some networks, but not mine! My network IS visible, so it's not that. But, given it finds other networks, i'm completely lost...All my other devices can see my network.
Has anyone else come across this issue?
PS: I don't think this is related to RR rom as i had the same issue with some other roms last time i tried to upgrade. Reverting back to CyanAOSP 4.2.3 resolves the issue.

Custom 6.0 ROMs not connecting to Verizon LTE

This is very odd. If I install the stock MRA58K ROM I can connect to Verizon LTE just fine, but as soon as I install Chroma and PureNexus I can only get a voice signal - no data whatsoever. I am using the latest MRA58K modem - MDM9625_104662.22.05.27R, although I have also tried downgrading to 17R and to no avail. I have tried all of the APNs and fiddled with roaming/preferred network type settings, but the only think that seems to solve the problem is flashing stock.

Cannot connect to any previously connected wifis

first, my rom is marsmallow, but i forget the version.
then, i upgraded ROM to 8.2.2.0 global stable, via ota update.
then i flashed by twrp (clean install) to lineage OS 14, and my wifi started to authentication error, and cannot connect to any wifi, both protected and unprotected wifi.
then, i flashed to 8.2.2.0 global by fastboot. but the problem still exist.
today, i try to connect to wifi network that never connected to my phone, unprotected wifi, and it works.
i have not try to new potected wifi.
any solution to this problem?
maybe i should clear the trace of my previously connected wifis? and how?
thanks
Hope this helps
Go to etc/firmware/wlan/qca_cld then rename wlan_mac.bin to wlan_mac.bin_bak.bak

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