Hi Everyone,
Thanks for all of your posts and come now, play nice.
Just to re-iterate some things...
My laptop setup i.e. Software Firewall and Logon Credentials are fine as it works from an 'Orange Broadband' connection.
RPC over HTTP as the name implies uses only the HTTP (80) and HTTPS (443) ports / channels therefore port forwarding is not an issue on my end. Clearly it is at the server end however THIS IS SETUP corrrectly. FYI the Exchange server in question is
https://exchange.1and1.co.uk.
Therefore the problem has to lie with either my router down here and its setup or Virgin Media. As I am quite confident in configuring routers I have gone through almost every permutation of security setup etc. but with no joy.
I had not considered that the 1and1 server maybe blocking my IP, I'll contact 1and1 to make sure. Will keep you all posted.
Cheers
Irish