Hi,
For many years I have been using Windows Remote Desktop with the same two machines. Not much should have changed other than normal updates and downloading and installing Norton 360 yesterday.
Computer A - has Norton 360
Computer B - is my laptop and I use this with Microsoft Remote Desktop to log into Computer A.
When Computer B is inside the network (on the same network as Computer A) Windows Remote Desktop connection works.
When Computer B is outside the network Windows Remote Desktop isn't working (prior to installing Norton I've used this configuration for many years - and it has worked fine).
I connect using the IP address of Computer A (the IP address assigned by my ISP) along with a port number.
I am not using the default port for Windows Remote Login.
I have configured Norton 360 which is installed on Computer A in the following way:
Settings>>Firewall>>General Settings Tab>>Public Network Exceptions>>Configure >> Enable (check) Remote Desktop Connection (under Public Network Exceptions.
I've recently installed Norton 360 and removed my previous antivirus - which had a fire wall and was configured to allow Computer B to log into Computer A.
Disabling Norton Smart Firewall and/or Auto-Protect did not allow an outside Microsoft Remote Desktop connection.
This makes me believe there is something either with the Windows 10 Machine that needs configuring or the Router's port forwarding that needs adjusting. I have been methodically checking all of these settings - and have found no anomaly as of yet. And, as I have said, I've been using these two computers to connect when outside the network for years (usually, when I travel for business).
Anyway, the only thing I can think of is that maybe Norton needs to know the port I am using to connect - but, that doesn't really explain why I still cannot connect when I disable Norton's smart firewall.
-Y
My operating system (where Norton is installed) is Windows 10 Pro version 22H2