Items I have tried: (more than twice each)

reflashed firmware
Factory default through web browser
Factory default using reset button
Created VPN on differnt ports using UDP
All three options for connection access as well

I am able to duplicate on a second XR1000 as well.

The setup is as follows:

Enable DHCP
Enable ddns
Enable OpenVPN server

Then everything stops a few seconds later as far as DNS goes.

Those three enabled together and DNS fails to work. I can navigate the internet and FTP if I know the IP address of where I want to go. Disable DHCP, it works fine again. Disable OpenVPN Server on router it works fine again. If either of two are disabled then the router seems to resolve names.

Happening on both my XR1000s.

The moment I turn off DHCP and let my PiHole do DHCP for the network I can then my openvpn server running on the router just fine. If I put either of the routers with the above config, DNS appears to stop working. If I assign a DNS server to the NIC of any PC or MAC when this happens I am fine. So something with the three enabled, kills DNS.

Nothing in the logs, it looks pretty normal. Does not matter what subnet I move either of the routers too, just enable the 3 and instantly DNS fails. No port forwarding etc.. Just right off a factory reset, both XR's do the same thing. For now I just turned off the VPN and went to twingate, which is fine. My concern is I am wondering if this why on previous firmwares I would need to reboot so often, it was masked by something else. Unfortnately I still can not update one of the routers even to the new firmware. But they are a version apart, didnt make any difference anyway.

Forum Discussion

XR1000 Enabling VPN service stops internet / DNS from working.