Sorry, should be clearer.

Gl.Inet and LUCI work fine and then suddenly after a while i get this error.

Wired or wireless doesn’t matter. All devices on correct ip subnet…

Can ping the router and internet is fine. Goodcloud works.

If I can restart the web service via SSH rather than having to reboot the router, then even that’s work as a workaround.

As I say looks like Web services dies or something.