Take the 2-minute tour ×

I have an SBS 2008 installation with VPN enabled. Port 1723 on the router is forwarding to SBS. In Windows XP I have setup a VPN connection and connected using my domain credentials. However neither end can ping each other.

I tried disabling the SBS firewall but to no avail.

Does anyone know what could be causing this?

share|improve this question

3 Answers 3

note: If you would've just changed your original subnet mask from to or you would've resolved this as well.

share|improve this answer

Turns out my local subnet had something to do with it. Was using The remote subnet (of SBS) was

When I changed my local subnet to, everything worked as expected. Now I can use VPN via Windows XP and my iPhone.

share|improve this answer

Check routing table on your XP client

share|improve this answer
I tried setting up the same VPN connection (PPTP) on my iPhone. It authenticates and says it's connected but still can't access anything. –  Reado Dec 4 '10 at 17:29
So (as you can access clients from server) seems you have problems with routing on clients... Looks like your packets for server goes through your client's default network gateway, not through tunnel. –  Sergey Dec 4 '10 at 17:34
Sorry I got the ping bit wrong... SBS cannot ping the client. So when the VPN is connected, neither end can ping each other. Any ideas? –  Reado Dec 4 '10 at 18:52

Your Answer


