@Solla-topee Hi, apologies for the lack of reply. The problem still exists. After about twelve hours or slightly more, the RE200 running in AP mode stops allowing clients to connect. In answer to...

I successfully set up an RE200 as an Access point (wired back to the Internet Modem/Router). The RE200 has the same SSID as the main router's WiFi, with -EXT added to the name, and same WiFi...