I recently added a new Windows Server 2003 to replace an old Windows Server 2000 server. Both servers were on the network until today. I just transferred all the fsmo roles to the new server and powered it off. Also, today we got a new ISP. I went into the router and changed the IP address, subnet mask, G/W address and DNS addresses provided by the ISP, this was the only that was changed on the router. Everything seemed to be working fine. All programs on the server was working and we could get to the internet. This evening we were accessing a website to post our credit card sales. We got the initial login and entered the first posting and when we went to submit it, we got a TCP/IP connectivity error. First I called the company and they are not experiencing any problem. I switched back to our original ISP and made the IP address changes and got the same error. I even powered up the old server to no avail. It appears to be a setting on the new server. Here is the exact issue.
The computer that the WARP Server is running on must be able to establish a TCP/IP client connection on a local port between 1024-500 and talk to a remote server listening on port 8100. If you are running the viaWARP software behind a firewall, you must take this into account. Generally, if your firewall is a "stateful" firewall and you have an "inside host rule" policy running it should operate without issue. If you have an older firewall, or if you are running the software behind a proxy server, you may need to have the firewall and/or proxy server modified to allow connections to port 8100 on internet hosts nettrans1.novainfo.net and nettrans2.novanet.net.
The computer running the viaWARP software must be able to resolve DNS host names.
The originating IP address must be routable across the internet (i.e. cannot be private addresses). If you are operating behind a proxy server, router or firewall providing NAT services, you must ensure that the source address of the viaWARP server appears to the NOVA servers as routable.
Our server was set up with the basics. Not a proxy server. I went into the router (D-Link) and added IP addresses. The vendor wasn't much help. They said that we have to allow viaWARP through the firewall to the above 2 websites and ports 8100 and 8101 have to be open.
Any ideas or if you can point me in the right direction would be greatly appreciated.