Since the Blaster Worm became a nuisance, some ISPs had blocked access to port 135. I have a user that has BellSouth Fast Access for their ISP. They are wanting to connect to our company Exchange Server via VPN. The type of VPN software is Netscreen 8.1, but I believe it to be the same as Secure Remote. The user is also using a Linksys BEFSR41 router. However, this user is having difficultiy connecting to Exchange. Everytime he tries to log on, he receives the message "Network problems are preventing connection the Exchange Server Computer." I've tried adjusting the MTU to lower values, but I was still unsuccessful.
Is there anyway to solve this issue? Or do I have to wait until they unblock port 135?