Resetting IPV , NIC Card random Websites are not opening pages

Few days ago , I had an issue with few website wont wont in my office  with random users specially  which interact with somehow security features of the web browser  . The only way I was able to make it work by assigning static IP and bypass it from FireWall which won’t fly with IT policy. Here is some thing which I come up with and it worked without violating our company IT policy.

I had primarily issues with : GotoMeeting, Webinar and other presentation based websites.

I have tried resetting NIC card and re-install the re-install driver. In addition, try these commands on you command prompt with Admin rights.

• Resets TCP/IP and related components to a clean state.

netsh int ip reset c:\resetlog.txt

• Resets IPv6 configuration state.

netsh int ipv6 reset

• Resets Winsock Catalog to a clean state. All Winsock Layered Service Providers which were previously installed must be reinstalled. This command does not affect Winsock Name Space Provider entries.

netsh winsock reset

Hopefully it works for you , please let me know if you have questions and I will reply on my earliest convenience.