Dual NIC weird Issue, one crashes and one still works

[n0fx]

I have ISPConfig 2.2 setup with two network cards. One NIC has an internal IP address, while the other one has a WAN IP. Sometimes the WAN IP crashes and stops responding to web requests in both port 80 and 81 (ISPConfig). I can still reach the server if I use the internal IP address on both ports 80 and 81.

Has anyone else experience this issue before? I had a feeling that maybe someone is DDosing my server but I'm not too sure if that's the case or that particular part just keeps crashing. I have to reboot the server in order to get it back to listen on the WAN IP and have the website load.

I only have one site setup on the ISPConfig server. When I try to load the site from the outside DNS name, it tries to connect to the site, it looks like it gives a response but then just times out.

[falko]

Could be an issue with your network card. Do you have a spare one that you can try?

[n0fx]

Originally Posted by falko

Could be an issue with your network card. Do you have a spare one that you can try?

I'll give that a try, thanks for the suggestion. I'll let you know how it comes out.