Hi,
Users on my network are unable to browse to certain .gov websites, specifically FDIC, FTC, SEC and HUD are the ones I am aware of so far. When they attempt to do so, IE times out.
Here's what I have figured out on my own so far:
- I can get to each site using a Sprint mobile hotspot so I know the sites are up and the problem is on my network.
- I can also get to each site if I use a web proxy service. I used proxybrowsing.com.
- Nslookup using internal DNS fails on all but hud.gov with the following error: Request to dnsservername.domain.local timed-out
- Nslookup using our ISP’s DNS server is successful for all of them.
- I can get to each of these sites by using the ip address rather than the name except for hud.gov. It appears to be doing a redirect and the name cannot be resolved.
- Tracert fails on all of these sites.
It appears to me that this is an internal DNS problem. Any ideas on where I should start to try to fix this? Any assistance would be greatly appreciated.
Thanks,
John