C5400 have serious issue WiFi 2.4GHz
Wi-Fi 2.4GHz having issue, mainly I set this frequency for all my smart devices.
After a while they all disconnected using this firmware 1.2.5 Build 20210308 rel.64655(5553).
When I checked the router the Wi-Fi was not enable and it's off for 2.4GHz.
For 5GHz-1, I turn it off and 5GHz-2 it seem to be fine.
I also try to enabled the Guest SSID with same setting with configuration, it seem doesn't work good either.
I don't know if TPlink support itself know this issue and address it the issue of this router or not.
So many product they release not even one is stable.
Judging by the firmware version itself there no fix until now, very frustrating and very disappointing.