We have a client who has a Vigor 2820 series router and all seems to be working fine apart from 1 issue. We have opened up the following ports 25, 443 and 4125 to allow use of their exchange server and Remote Web Workspace, they are running SBS2003. Now Port 25 is working fine and is showing as open when we did a port scan but 443 and and 4125 are showing as stealthed and they cannot use RWW from outside their network.

Anyone got any ideas?

Have so disabled https management from the internet or changed the https management port on the draytek from 443 to something else