@traveller1960 You can try upgrading the router's FW to the latest FW release to see if it will be more stable.

@Bobby86 While UPnP enabled you can observe the UPnP requests from your devices here: Reboot the device after disabling UPnP to be sure that there's no device on your network trying to open this port...

@Bobby86 Which port are you trying to forward ? Disable UPnP: reboot the C54 and try again.

@vHal Here's the user guide for WA901N v6. Try resetting the device one more time when powered on. Use a paperclip and push slightly, until you hear a click: After a successful reset you should...

@_tawseef313___ Check this answer.

@Pepe96ito If you're with the latest FW from my first post (EU), It seems that C54 supports even WPA3 with this release: but can't tell why in RE mode the extended network is built with WPA only. I...