[Giga KN-1011] After firmware upgrading to 3.7.3 Samsung Galaxy S8 Plus doesn't connect to 5 GHz wifi

[happy_developer]

If I add Samsung S8+ to Registered devices and limit its connection to 5GHz only, it can't connect.

At the previous version (3.7.2) all worked fine.

Other my devices work fine now (Samsung S21, Samsung TV). I have problem with Samsung S8+ only. Rebooting didn't help.

Edited February 28, 2022 by happy_developer

[KYTECHNGAMING]

Which 5ghz channel are you having this problem on?
Does it automatically connect at 2.4ghz?

[admin]

Please try 3.8 (Dev) branch, and attach self-test if still have a problem.

[happy_developer]

5 hours ago, KYTECHNGAMING said:

Which 5ghz channel are you having this problem on?
Does it automatically connect at 2.4ghz?

Yes.  It automatically connect at 2.4ghz.

If I forcibly change it to 5ghz in "Registered devices" section. smartphone can't connect.

At the previous versions (3.7.2, 3.7.1) all worked fine.

[happy_developer]

5 hours ago, admin said:

Please try 3.8 (Dev) branch, and attach self-test if still have a problem.

I've tried and now I can't connect to 5GHz with my Samsung Galaxy S21 also (

I've rolled back to 3.7.3 and it did't help. Now I can't connect to 5GHz wifi. Only my Samsung TV is connected via 5Gh now.

Self-test of 3.8 attached.

self-test_KN-1011_draft_3.08.A.6.0-0_router_2022-02-28T17-55-19.856Z.txt

[happy_developer]

5 hours ago, admin said:

Please try 3.8 (Dev) branch, and attach self-test if still have a problem.

Just in case self-test of 3.7.3 attached

self-test_KN-1011_stable_3.07.C.3.0-2_router_2022-02-28T18-08-09.540Z.txt

[happy_developer]

After several attempts, I decided to turn off the router, wait a few seconds and turn it back on. It helped with Samsung S21.

I will check Samsung S8+ in 3 hours. I don't have it right now.

[happy_developer]

I've just checked Samsung S8+. It's working now! Thanks!
The solution was just to turn off the router's power and turn on it again.

[KYTECHNGAMING]

What channel was the Wi-Fi on when it couldn't connect?

[happy_developer]

1 minute ago, KYTECHNGAMING said:

What channel was the Wi-Fi on when it couldn't connect?

I didn't change the channel. 5GHz, Channel 52

[KYTECHNGAMING]

I am experiencing a similar situation. my device is peak dsl and i am using 160mhz active.
I don't have manual 5ghz connection settings for devices.
DFS 104 108 112 are the channels that I have observed problems in general.
I don't have much problem with DFS 100 or 52 channel.

We follow up with Keenetic TR via ticket. #575074

 

[happy_developer]

10 hours ago, KYTECHNGAMING said:

I am experiencing a similar situation. my device is peak dsl and i am using 160mhz active.
I don't have manual 5ghz connection settings for devices.
DFS 104 108 112 are the channels that I have observed problems in general.
I don't have much problem with DFS 100 or 52 channel.

We follow up with Keenetic TR via ticket. #575074

 

I've just checked my self-test files. As I can see, during the troubles my 5GHz wifi channel was 149. It looks like that was the reason for the problem. Thanks a lot!