Slate AX working with home computer but not with work laptop

I set up my Slate AX working with WireGuard client and ProtonVPN service. For some reason it only works when the Ethernet cable connects to the WAN port but not the LAN, but I don’t mind. I was able to set it up with my personal MAC and connect to the WiFi with no problems. I was able to connect to my work computer with both WiFi and LAN yesterday, but today it will not connect either way. Could my employer have blocked the new IP address? Can they detect is a VPN Router? Any suggestions or thoughts would be appreciated.

WAN is the router Internet access interface.

Is the WireGuard VPN Client connected? Show the screenshot to let us further know your issue.

Some ISPs in certain countries or regions might detect that using a VPN and block the IP address of the VPN server, causing you cannot use this VPN server.

Please refer to this guide to check first: How to troubleshoot WireGuard