Hi I have a WPA4220 V4, which stopped generating WiFi signal (Wireless led is off). I tried resetting the extender but it doesn't work. At times the Wireless led lights up for a while, I can see the SSID on the phone but when I connect I can't do it because it restarts. Nor can I connect via an ethernet cable to attempt a firmware reload. Do you think it is a HW or SW failure? Do you have any procedure to recover it? or should I replace it with a new one?

Thanks

Antonio