Connectivity issue when switching to a new ISP

  • Thread starter Thread starter providencebuddy
  • Start date Start date
P

providencebuddy

I'm experiencing an annoying problem when I try to switch two of our
servers, connected via a small hub, to our new ISP. The two servers
(one a webserver and the other a database server) work fine when
connected to our existing T-1 line. They have fixed IP addresses and
they are able to 'see' each other and communicate amongst them. I can
ping one server from the other, and viceversa. The two servers work
hand in hand, as the webserver puts requests on the database server and
gets back its data from the database server.

When we try to switch to our new T1 line, the servers are able to see
each other for one minute or so. After that they are not able to see
each other. I try to ping one server from the other, using their static
ip addresses and they don't get a reply from ther other. I'm able to go
out to the internet from either one of them without problems. This
problem renders the webserver useless when it comes to getting info
from the database server.

Our network consultant think the problem is related to some coding on
the webserver or the database server causing the issues, but I don't
think ASP or HTML code would cause this connectivity problems. When I
try to ping one server from the other, I'm using windows names or
internal static ip addresses. I'm not trying to use fully qualitified
domain names, so DNS has nothing to do with this.

I've even replaced the small hub that I use to connect the two
computers to the new T1 line, but that hasn't solved the problem.

Has anyone ran into something like this?
Thank you
 
Our network consultant think the problem is related to some coding on
the webserver or the database server causing the issues
Click to expand...

Great, and how much are u paying this friend of your VP?

Re-check IPs and masks.
 
They're connected to a switch and then directly to the T1? So they must have
public Ip addresses on the NICs. What is the result of a tracert when they
can ping each other. What about when they can't? What are the IP addresses
and subnet masks?

....kurt
 
Back
Top