WiFi failure on DMP A6 after upgrade

The WiFi on my DMP A6 has completely failed on upgrading to V1.3.80
Everything else still works including the wired connection (when I connect ethernet cable).
I tried various things including a factory reset...but to no avail

Any ideas?...could it be the FW ???

 

... physically disconnect the LAN cable from Eversolo if you want to use wifi connection. It should work.

 

After upgrading, everything on my A6 is normal

 

Afraid not, until the WiFi failed I had never connected an Ethernet cable

 

Disconnect A6 from the mains for 5 minutes.
Reset the WiFi router. After reset wifi router, turn on A6 and try reconnecting A6 to your home WiFi network.

 

Yeah, have switched off the A6, and even for longer period…factory reset tried also…no joy…it cannot find any networks, not even the neighbours’.
My wifi network is fine…all other devices are using it without problem