@terziyski Thanks for your kind response. We have discovered that the problem related to the power supply losing its neutral connection (mains power). Once that was sorted the TP Link works fine...

@stevecarter Model: TL-WA901ND Serial 2166553006185 EU/4.0

Hi, We have a TP-LINK-AP-88AE router to provide WiFi in a hall, connected to our main router by Ethernet Cable. It has worked well for over a year. The Wi-Fi went off yesterday so we rebooted the...