Hello to all

For the past 2 years I have had a TP-Link Archer VR2800V which worked perfectly until 2 weeks ago where I made several interventions in the electrical of the house and added about 20 Sonoff WiFi devices at 2.4GHz. The total number of WiFi clients is 23 including laptops mobile phones and smart tv’s

The problem that arose is that the router crashes and does not accept to connect another device on it as well as that the 5G network is completely lost. It becomes undetectable.

Restarting the router returns 2.4G WiFi where you can connect but not the 5G WiFi. For 5G WiFi to appear I must either restart the router 2 or even 3 times and even then it will not appear after reboot. It will take some time until it is detectable again.

I do not know if it is related to the changes I made or is it a coincidence.

What can I look at?

Note last night I ran the latest firmware version but nothing changed.