Cannot access local server via home router — but works from outside

Question

Possible Duplicate:
DD-WRT: How to allow port forwarding to apply to requests originating from inside the LAN?

I have a webserver running on my private PC at home. This PC is running Windows 7.

The PC is connected to a home router via WiFi. That home router is configured with a port-forwarding rule that makes the webserver accessible from the outside.

I can access this server just fine from the outside, so the server and the port-forwarding rule are just fine. I can also access the server from the PC itself (the same PC that is running the server) if I use localhost or 127.0.0.1, i.e. don’t go through the router.

However, it does not work fine if I try to access it from the PC itself by using the external IP or a dyndns hostname (so it connects via the router). Sometimes it doesn’t connect at all; sometimes it loads a bit of the webpage but then stalls and never finishes.

I had this problem in two different houses with different routers (but the same PC).

Anything that can be done about this problem?

Answer 1

1. Log into the router's web interface
2. Click the Advanced tab at the top
3. Click the Firewall Settings tab at the left
4. Click the Endpoint Independent radio button under TCP Endpoint Filtering, as shown in the screenshot below (or see the router emulator at D-Link's website)
5. Save changes; you're done

If that doesn't help, some other good suggestions are listed on this ServerFault posting.