Relay module down Wifi Strange

[tontito]

if Relay module is LOW then RSSI = -55 else Relay module is HIGH RSSI = -64

what is problem ?

[Helios]

Thanks for your information.
Please check
1) the power-supply drop, when Relay Module is HIGH
2) any metal object moves near to WiFi Antenna when the Relay Module is HIGH

[tontito]

probably RSSI not stable now no problem

but 2 second interval get RSSI

-65
-64
-60
-65
-55
-51

[tontito]

Yes.

i found my problem. my problem ac/dc adapter cable. change dc adapter cable (1.5mt) quality cable no problem.