After recently installing a new DSL circuit in one of our regional offices and setting up a VPN tunnel back to the head office I am experiencing an issue with speed. The DSL circuit is providing speeds of 6954 kbps down and 625 kbps up as seen from the "show dsl interface" command, and this is what we have been told that the service is. This installation as an exact copy of one of our other five offices setup in the same way.
ICMP pings are within what I would expect to see, at 115 ms ave, there are no packet drops that I can see and I have connection in monitoring on our network monitoring stations.
The problems occur when people try logging on to the network from any Windows box in this office to the Domain controller in the head office, the logon is very slow, it is also true that web browsing and file access from the head office is also incredibly slow. I have tried various things from removing logon scripts from the users in this office to logging in locally on one of the machines. I am able to remote control machines in this office without an issue, one thing I have noticed is that if I use the IP address of the resource I am trying to use the speed seems OK but saying that if I use this method I am prompted for user credentials.
I am starting to lose the will to live trying to work this out, I have trawled the forums and internet for answers but so far no luck, any help would be appreciated.
