Asus rt-ax53u disconnect internet when openvpn server is enabled

[knightwings]

I have a ax53u router. I enabled openvpn server. Connected to the router via vpn for awhile then disconnected vpn. Since then I get intermittent Internet drop only way to get Internet is to toggle Internet off then on ( status on router is connected to Internet even though no internet)

This issue doesn't happen if I don't enable vpn after a factory reset.

Any one face same issue?