RDP connection stopped working

[mkiranagi2]

I was able to RDP to my remote computer till last Friday 14/01. But since this Monday I cannot. However, I can connect to it if I use my Mobile Hotspot. Has something changed with vodafone broadband connection that is preventing RDP. I am located in CR7 7LH

[CrimsonLiar]

Nothing has changed on the Vodafone network as far as I can tell.  I can certainly RDP into remote systems from here.

It's worth pointing out that some weeks back the Vodafone network changed from identifying our internet gateway as the same as our WAN IP to a specific gateway server.  There are many possible reasons for this change, ranging from a simple network engineers preference, to preparation for IPv6 and associated downgrade of IPv4 addresses to CG-NAT.