Sudden loss of remote Netbios access over TCP/IP

[dj]

you can do some more testing
setup telnet server on port 135 and 139 if it connects.

 

[Paul Klose]

I could not connect to either port using Telnet.

 

[Chris]

I could not connect to either port using Telnet.

I am having a very similar issue. I have a server in a collocation
facility that is behind a firewall, but my IP (static) has access to
the server through the firewall.

I had no problems getting to the server (it is a Windows 2000 Server)
with a UNC path, like \\MachineName\MyShare$ before yesterday. Now I
can't get to the machine with the UNC path at all. I can use Terminal
Services to remote control the machine, I can get to the web
application on port 80 with no problems. When I try to get to the
machine with the UNC path I get "the network path was not found". It
pings fine etc. I have scanned both machine for a virus, none were
found.

I did just install the security patch for the Blaster worm, the day
before I noticed that I could not connect. Does anyone one know if
that would have changes a setting or something else to cause this? I
have not made any configuration changes at all other than the patch.

Any help would be GREAT!

Thank you in advance

 

[Paul Klose]

This appears to be the identical problem that I am having. My server
is also in a co-location facility, but there is no firewall that I am
aware of and also according to my hosting company.

In my case, I installed the Windows security patch 823980 that
prevents the Blaster virus on 8/1, but the problem didn't appear until
8/14 ... so I don't think they are connected.

If my machine has the IP address xxx.yyy.zzz.111, is it possible for
another customer at the co-location facility (e.g. xxx.yyy.zzz.222) to
be able to firewall my system? If so, is there a way to detect the
existence of such a firewall?

 

[Chris]

Does anyone have a fix for this issues?

This appears to be the identical problem that I am having. My server
is also in a co-location facility, but there is no firewall that I am
aware of and also according to my hosting company.

In my case, I installed the Windows security patch 823980 that
prevents the Blaster virus on 8/1, but the problem didn't appear until
8/14 ... so I don't think they are connected.

If my machine has the IP address xxx.yyy.zzz.111, is it possible for
another customer at the co-location facility (e.g. xxx.yyy.zzz.222) to
be able to firewall my system? If so, is there a way to detect the
existence of such a firewall?