I have a Cisco 2621 router connected to my ISP via a T1 line and conne

[familyman]

I have a Cisco 2621 router connected to my ISP via a T1 line and connected to my network via<br>
100BaseT and a 3com switch. On my network, I have configured an IIS web server and have a DNS<br>
entry that points to the machine on which IIS is running. I am able to access my web site from most<br>
remote locations, but I am unable to access it from some.<br>
<br>
When I log on to an ISP from which I am unable to access my site and ping the machine (or any<br>
machine on my network) via IP Address or by name, I get a request timed out message. <br>
<br>
The strange thing is that while I am able to ping the serial port of the router that feeds the switch (where<br>
the T1 enters the router) - I am unable to ping the ethernet port that goes out from the router to the<br>
switch that feeds my network.<br>
<br>
Do I have something configured incorrectly on my Cisco router?, IIS, DNS? As I mentioned - it works fine from some remote locations, but not from others.<br>
<br>
Thanks in advance for your help.

 

[Rasta]

If you are able to connect from some remote locations and not others check your routing tables (ipconfig /all ¦more). Chances are you have an invalid route being advertised as a gateway which needs to be deleted (route /delete . . .) or no route to your current net, in which case you may need to do a "route add" . Just my best guess. . .hope this helps!