no such interface supported msg via TCP

P

prophead

A couple of weeks ago I suddenly started getting the error message "no such
interface" when attempting to connect to SQL Server from an ADP on my LAN.
The port is correct and I tried every trick I could think of with client and
network configuration but could not get it to connect until I enabled Named
Pipes. The TCP/IP connection simply stopped working.

Now I have a client who suddenly has the same problem. I would simply get
them connecting via Named Pipes and move on, except they have a Web app that
needs to come in from the Internet to their SQL Server over TCP port 1433.

What could cause the TCP network library to stop working?
 

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