So have a weird issue.
RUT955, latest FW as of today.
We have remote access to HTTPS enabled and a successful VPN tunnel.
We can ping the device via VPN and even get Modbus data from the status registers.
But we cannot access the WebUI over the VPN or from the remote manangement HTTPS service on the within the same LAN nehind the VPN to the external (WAN) IP of the RUT.
If we connect to access the WAN from any other location (hotspot, different WAN IP) it will respond and act correctly. This device does have a static IP for the WAN.
We have disabled firewall, made explicit rules for WebUI to allow, etc. We setup a VPN connection to another location, same response.
It still will not work, will just timeout.
This was also happening in v6, we hoped v7 would fix the issue.
We can access all other devices
Again: (Location 1 is the LAN of the VPN Server (IKEv2, Main mode, static IP)
Location 1 > VPN > RUT (LAN) = Fails
Location 1 > WAN > RUT (WAN) = Fails
Location 2 > WAN > RUT (WAN) = WORKS!
Location 1 > VPN > RUT (LAN) (PING) = WORKS!