Can't ping DHCP although I get a valid IP

[electraboy]

Hi,

I was wondering if anyone could help me how to troubleshoot the following problem:
My internet connection was working fine, DNS, DHCP was working properly and I was trying to set up Routing and Remote Access which kinda worked (I could connect but I got a protocol error on several machines). Then I reboot the server (because of an application hang that messed up the system) and afterwards I wasn't able to connect the internet.
I got a valid IP from my provider's cable modem (somewhere in the range 84.196.254 ). At first I wasn't able to ping an internetaddress such as

http://www.google.com

but I couldp ping the DNS from my provider (195.130.129.162).
Then the next day or so pinging the DNS stopped working, but I could still ping the DHCP.
Now I can't even ping the gateway anymore.

This is my setup:
Windows 2003 Enterprise Server, 2 Nic : 1 onboard which I use as internal connection (and works fine) and the other one, a dlink DGE-528T Gigabit Ethernet, which worked well previously in another machine with SBS2003.
At the moment I'm connect with my laptop so I can compare the IP results.

I hope someone can point me a little in the right direction.
I've tried troubleshooting with Wireshark, but other then interpreting some traffic like dhcp request and ack's, I'm not very strong with that. But I can still post some if that would help...

Thanks in advance !


Sam

It is impossible to make anything foolproof because fools are so ingenious.

Murphy's Laws​

 

[dberg35]

Suggestion here why not purchase a router rather than using the server.

What are you exact config in Routing and Remote Access? Also is there is a firewall make sure that is configured correctly.

 

[electraboy]

The problem seems to be solved. When setting up the network connections I filled in the server's ip as gateway in the LAN connection. That was the reason I couldn't ping anything on the WAN side.

It is impossible to make anything foolproof because fools are so ingenious.

Murphy's Laws​