Problem:

On my wireless network at home, there is one URL that I just cannot access with my browser:

http://research.microsoft.com/

I have no problems with the Internet connection otherwise. But on that address I just get

The connection was reset
The connection to the server was reset while the page was loading. 

from Firefox. I am using a DSL modem (Westell) and Linksys wireless router (using DHCP). When I use my neighbor's wireless connection I can access the microsoft site without a problem.

Additional technical details:

But with my connection, here is what I get from nslookup. It is weird: It first cannot find the address, but after I look up another address it can find it:

$ nslookup research.microsoft.com
;; connection timed out; no servers could be reached

$ nslookup google.com
Non-authoritative answer:
Name: google.com
Address: 72.14.204.104
Name: google.com
Address: 72.14.204.147
Name: google.com
Address: 72.14.204.99
Name: google.com
Address: 72.14.204.103

$ nslookup research.microsoft.com
Non-authoritative answer:
Name: research.microsoft.com
Address: 131.107.65.14

But even after nslookup finds it Firefox still cannot access it.

Here is what traceroute says:

$ traceroute http://research.microsoft.com/
traceroute: Warning: http://research.microsoft.com/ has multiple addresses; using 8.15.7.117
traceroute to http://research.microsoft.com/ (8.15.7.117), 64 hops max, 40 byte packets
 1  dslrouter.westell.com (1XX.XXX.X.X)  4.515 ms  2.760 ms  3.072 ms
 2  * * *

Traceroute just to the IP:

$ traceroute 131.107.65.14
traceroute to 131.107.65.14 (131.107.65.14), 64 hops max, 40 byte packets

 1  dslrouter.westell.com (1XX.XXX.X.X)  11.912 ms  2.684 ms  2.808 ms
 2  * * *

Comparison: Traceroute to google.com IP:

$ traceroute 72.14.204.99
traceroute to 72.14.204.99 (72.14.204.99), 64 hops max, 40 byte packets
 1  dslrouter.westell.com (1XX.XXX.X.X)  6.428 ms  6.981 ms  117.099 ms
 2  * * *

Any comments / help?