AC5300 upgrade to 386.2_2 2.4Ghz radio not working


Occasional Visitor
Hey all,

yesterday I upgraded (nuclear reset and M&M config) my AC5300 to 386.2_2, but since the upgrade the 2.4Ghz radio works for some time and then just stops working.
This means, first I have an extremely high ping to When I switch to the 5Ghz radio (which works fine), I cannot even reconnect to the 2,4Ghz.

The temps are:
Legend: 2.4 GHz - 5 GHz - CPU
Current Temperatures: 50 °C - 55 °C - 71 °C

There are no USB devices connected and I didn't load any backups (JFFS, configs, etc.) after the flash.

Any help is appreciated, since most of my devices at home only support 2,4Ghz :(



Occasional Visitor
The log of the router is also spammed...

Btw, please let me know, if I can provide any more information that could help!


  • syslog.txt
    61.3 KB · Views: 92

Kanchan Ray

Occasional Visitor
I am having the same problems with GT-AC5300 (f/w - the devices in 2.4GHz can't access internet after a few days - have to reboot the router. Have not changed ANYTHING recently - the problem started just like that. Have done a reset and running pretty much default options. Any pointers? The 5GHz has no issues at all.


  • ac5300.jpg
    78.8 KB · Views: 57


Senior Member
Anyone found solutions for this? i am also having issues with some devices on 2.4gHz where some are unable to detect the others...


New Around Here
Hi all
on a RT-AC88U I have the same (or a very similar) problem.

There's one think I noticed, though. Three days ago I manually chose a control channel instead of using "Auto", and, so far, it's stable.

For me this also started happening when I upgraded to 386.3_2


Regular Contributor
Same here 2.4GHz on my AC86u not working anymore cant even connect to it.

Similar threads

Latest threads

Sign Up For SNBForums Daily Digest

Get an update of what's new every day delivered to your mailbox. Sign up here!