Help with ARP Request and NetBios Session Request

[Cory]

what OS is the old PC?

-----Original Message-----
I just swapped out my PC at work a few weeks ago, but I'm

having a bit of trouble with long delays when opening
files or when right-clicking on files. It takes about a
minute on a new P4 3.2. I went into safe mode and
everything is fine. So then I went back into standard
mode and tried disabling virus software and anything else
not critical, but it still happened. Through process of
elimination, I realized the problem would go away if I
either unplugged then network cable or disabled the NIC.
I tried updating the NIC drivers, installing a new and
different NIC, a virus scan and a spyware scan. Still
nothing. I logged in as the local administrator to see if
maybe my profile was bad, but it still did it.

Then I used a packet sniffer to see what was going on

with the NIC. I realized that the second I right-clicked
on a file, my new PC was broadcasting to find my old PC.
So I turned on my old PC and sure enough the lag went
away. I turned off the old PC and the lag came back.

The new PC is sending an ARP request for my old PC. If

the old PC is off, then I believe it is hesitating while
waiting for this reply. When the old PC is on, I can see
that, following the ARP request is:

- An ARP Reply
- A NetBios Session Request from the new pc to the old pc
- A NetBios Session Response
- Followed by prototcol negotiations, etc...

I have no mapped drives to the old pc, and I deleted all

of the "my network places" pointing to the old pc, but it
still happens. I searched the registry for the name and
the IP Address of the old pc, but only found a few benign
entries, which I deleted, but still nothing. I searched
though all of the files on my system for the name and IP
Address, but still only benign entries.

I flushed my DNS, and it seemd to reduce the amount of

lag by a few seconds, but it's still pretty bad. Could be
just a coincidence.

Can anyone tell me what could cause my new pc to seek the

old pc when opening or right-clicking a file? Any ideas
would be greatly appreciated.

 

[Ken Wickes [MSFT]]

My guess is that some item on the right-click menu is registered to the old
computer and it's being accessed for some reason (like loading an icon).

Can you see what file is being requested? Might help you track it down.