Can't find web sites

[herrslime]

Internet Explorer 6 running on 8 Win98SE computers.

Everything worked until last week. Not sure what has changed locally but web site location has changed.

2 web sites with home pages and email. Neither of the web sites can be viewed nor can Outlook Express POP the email.

Web sites can be viewed and email POPed from 2 different locations using similar computers and software.

I have checked the hosts.sam files on all computers but there is nothing in them. I have check the Linksys (BEFSR11) router and find nothing blocked. I have checked IE for security and privacy settings but don't see anything that would cause this. Both have default settings.

I have checked other web sites (Coke, Pepsi, Google, Yahoo, ETC) without any problems with the exception of other web sites located on the same web host (same base IP address). No web sites on the same server will come up. I can ping the base IP address.

The new web server DNS settings were changed 4 days ago so I do not think this is a propogation issue.

Since this affects all the computers in a single location I am looking at 2 possible causes.
1. The provider (Comcast cable) is blocking the IP OR
2. The router is blocking it for some reason (but where)

Any suggestions would be appreciated.

 

[bcastner]

Slightly confused by your description:

. if the IP of the web site is outside of your ISP block, not problem.

A ping of Yahoo.com, or Google.com works.

. if the IP of the web site is inside your ISP subnet, you cannot access the sites?

Then talk to your ISP. Becuase of blaster and other worms, (which start scanning based on YOUR IP to begin with, many ISPs are blocking ping and other ICMP traffic on their subnets). But your DNS servers (I am assuming from your ISP, should still resolve the names. Your ISP screwed up something somewhere.

 

[herrslime]

I was slightly confused writing it.

I have resolved this issue but I would agree that the problem is with the ISP.

If I use the recommended POP info: mail.mydomain.com I get no connection or server not found or multiple password requests. If I use the mail servers IP address 123.45.67.89 it works fine. Not sure why the pings worked intermittently.

Either the ISP name servers don't update regularly or ir is an Outlook Express issue.

I am now using the IP and have not had any more problems.

Thanks for your response.