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Unable to Open Website

Last response: in Networking
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June 11, 2009 1:20:04 AM

There is one website that I cannot open in either IE or Firefox on just one computer on my home network. All the other computers, laptops, desktops and handheld devices open the site without a difficulty. This includes another identical laptop.

Trouble is, the website is for my employer, MetLife (www.metlife.com) and I need it for information at times. I have tried most of the suggestions I searched here and other sites. I have flushed DNS, tried pinging it unsuccessfully, tried addressing the IP address only. All to no avail.

The one oddity that I have noticed is that if I use my VPN to connect to the company's network, DNS has no trouble resolving Metlife.com and goes right to the site in either browser. Of course, once I'm secured past their firewall it should be resolving through some entirely different servers.

Can anyone think of anything else to try? I've used CA and Spybot to clean the machine and when I sit it side-by-side to the second identical laptop, I cannot see anything with IPCONFIG that looks any different among them.

More about : unable open website

June 11, 2009 1:51:57 AM

Anything different between the two laptops when you type "route print"?
June 14, 2009 5:53:04 PM

route print command provides almost identical results on the 2 laptops with the exception that on 1 laptop the wireless cardbus adapter is #3 while on the other it is #2. The other adapter 2 and 3 are used by the Intel Pro/100 VE Network connection.

The one notable difference is in the final line for route print. On the laptop that can access the website the network destination is 255.255.255.255, netmask is 255.255.255.255 and the Gateway is 192.168.1.3 (this is the ip the laptop is pulling). The interface on this line is simply the number "2".

On the laptop that won't go to the website Gateway and Interface is listed at 192.168.1.6 (the ip this laptop is pulling). So it's "2" versus 192.168.1.6 in the last line of the Interface column.
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June 14, 2009 6:27:46 PM

I presume that the laptops are connected via wireless only?

Quote:
The one notable difference is in the final line for route print. On the laptop that can access the website the network destination is 255.255.255.255, netmask is 255.255.255.255 and the Gateway is 192.168.1.3 (this is the ip
the laptop is pulling).
This one works because all traffic is destined to the 192.168.1.3 interface. The interface number can be ignored as it has no impact if only one is connected.

Quote:
On the laptop that won't go to the website Gateway and Interface is listed at 192.168.1.6 (the ip this laptop is pulling). So it's "2" versus 192.168.1.6 in the last line of the Interface column.
This is not clear to me. What's the default gateway on this laptop?

I'm only interested in the default gateway and the line(s) that contain(s) 255.255.255.255, e.g.,

Network Destination Netmask Gateway Interface Metric
...
255.255.255.255 255.255.255.255 192.168.1.3 192.168.1.3 1
...
Default Gateway: 192.168.1.1


You can also execute ipconfig /all to see if there are differences, other than the IP address.
June 14, 2009 6:36:35 PM

255.255.255.255 255.255.255.255 192.168.1.3 2 1
default gateway 192.168.1.1


255.255.255.255 255.255.255.255 192.168.1.6 192.168.1.6 1
default gateway 192.1681.1

First one works, second does not.
June 14, 2009 7:57:09 PM

The VPN doesn't connect to the same server. If you haven't already done so, check the firewall and make sure that the web site is in the list of safe sites for IE or Firefox. If you can get to any other site except for that one, then something is denying access to it. Same problem if you connect the laptop via the Ethernet port?
June 14, 2009 8:57:01 PM

No VPN on the Route Print results. Agreed, a different server though, when VPN used.

Laptop has the same problem using the Ethernet port. I've suspected some malware especially because pinging the site gives different results on the 2 laptops.
June 14, 2009 10:23:47 PM

What's different when pinging the site? Also perform a tracert to the site. Both laptops should get to it using the same path.
June 14, 2009 11:20:41 PM

Firstly, thanks for your help.

It's simpler than that. On the laptop that can connect to the website, if I ping Metlife.com it reconciles to 216.163.250.139 but then all 4 channels timeout. With the laptop that refuses to connect to Metlife.com, it simply says "Unknown host metlife.com".
June 14, 2009 11:48:55 PM

Then you might have a DNS problem. Run ipconfig /all to see is they have the same DNS. If not, do the following on the laptop taht doesn't work:

ipconfig /release
ipconfig /renew

If that doesn't resolve the issue, check the contents of windows\system32\drivers\etc\hosts.

Edit: ping times out because you eventually go through a router where ICMP traffic has been disabled.
June 15, 2009 1:52:55 AM

Yes, done all that. Same DNS choices for both. Tried ipconfig /release and renew and also flushdns.

Hosts file is still the vanilla.
June 15, 2009 1:59:38 AM

I can't determine what's different, but if all PCs get the correct IP address for Metlife.com, but one doesn't, then something has to be different. You could always add "216.163.250.139 Metlife.com" to the hosts file. Not the ideal solution, but it should work.
June 16, 2009 12:11:55 PM

Incredibly, adding the site's IP to the hosts file doesn't allow me to hit the site. Does reflect correctly in ipconfig /displaydns.

Wish I could use Safari but this is a W2K PC.
June 16, 2009 3:36:16 PM

Adding an entry to the hosts file doesn't do anything for ipconfig/displaydns. There has to be something loaded on that laptop that prevents it from accessing that site. Can't you bring it to your IT people to have them figure out what the problem is?
June 18, 2009 3:19:08 PM

Uh...that would be me. thx.
June 18, 2009 4:09:11 PM

Anything in the network interface configuration or the firewall that could cause that issue?
!