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I have one Linksys WRT54GL router running Tomato firmware. Connected to it via ethernet are two computers with Static IP addresses.
The first computer is using the default RDP port 3389. I set up port-forwarding on TCP to that computer's static IP.
On the second computer I changed the RDP port to 3398 at:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\TerminalServer\WinStations\RDP-Tcp
Then I set up port-forwarding on TCP once again to that computer's static IP.
Both computers have Remote Connections enabled from Any version of Remote Desktop Client.
From both the same network and an external network I tested remote connections to both computers: Only the first computer connects, the second won't.
I had previously got this working with the same router, and for awhile I had switched to a new N router (Dlink DIR-655) before recently switching back to the Linksys. Since switching back (with no configuration changes) something is going wrong and I can't quite figure out what it is.
Additional things tried:
- Running ipconfig /release /renew on both computers after switching back to the original router (WRT54GL) to obtain the proper local IP.
- Clearing arp tables of old N router's IP addresses on both computers, which were set statically to 192.168.0., whereas the WRT54GL is 192.168.1..
Update: I'm also connecting using ip+port (192.168.1.145:3398)
Ah ha! between routers I had re-enabled the firewall for something whereas before I had it disabled for testing. I swear of half my problems where I can't connect to something, this is the reason and I never learn! – Jeff Dalley – 2010-11-04T17:16:25.317
1how do actually allow the port through the windows firewall? – Ray – 2014-02-25T15:43:01.447