mccoz
asked on
NetBios name requests: Which service or application is sending them?
Hi!
I have a problem: It all started when the IT services removed an old server from the net. Whenever one tries to open a simple text file or anything or right click some file or folder on whatever drive as e.g. C: or even the USB stick it takes more than 20 seconds till that action happens. Using a network protocol analyzer I found out that after the mouse event there are sent a number of name request via DNS and NetBios regarding that old server. When all of them returned an error after 20 seconds the chosen action is finally executed.
When I switch off NetBios over TCP/IP then opening files works without delay as it should. But this is probably not a clean solution since something in the background will still ask for the old server.
How can I find the application or service which is initiating the name requests so that I can change its settings?
I looked already for network drives but all the drives I can find are working correctly. It is also strange that the name requests are send no matter what file on what drive I try to access.
Since a lot of computers in our office have this problem and our IT services left us alone with this saying they can't find any problem, I would appreciate your help.
Thanks a million in advance!
I have a problem: It all started when the IT services removed an old server from the net. Whenever one tries to open a simple text file or anything or right click some file or folder on whatever drive as e.g. C: or even the USB stick it takes more than 20 seconds till that action happens. Using a network protocol analyzer I found out that after the mouse event there are sent a number of name request via DNS and NetBios regarding that old server. When all of them returned an error after 20 seconds the chosen action is finally executed.
When I switch off NetBios over TCP/IP then opening files works without delay as it should. But this is probably not a clean solution since something in the background will still ask for the old server.
How can I find the application or service which is initiating the name requests so that I can change its settings?
I looked already for network drives but all the drives I can find are working correctly. It is also strange that the name requests are send no matter what file on what drive I try to access.
Since a lot of computers in our office have this problem and our IT services left us alone with this saying they can't find any problem, I would appreciate your help.
Thanks a million in advance!
ASKER
Thanks for the suggestion!
I am not in my office right now but I will definitely try that later.
But shouldn't that happen automatically after shutting down Windows normally? This situation is enduring since over half a year already and I assume almost 20 PCs are affected so that it seems strange if old cashes are persisting for such a long time in so many PCs.
I am not in my office right now but I will definitely try that later.
But shouldn't that happen automatically after shutting down Windows normally? This situation is enduring since over half a year already and I assume almost 20 PCs are affected so that it seems strange if old cashes are persisting for such a long time in so many PCs.
Yes, it should, but try this as a first step to verify... :)
ASKER
Flushing those too cashes did not help. Any other suggestions?
Somewhere there is a lingering reference to that old server.. are you running a WINs server? If so, ck it..
BTW: turning off Netbios should not affect your PCs.. It is an older technology that is not necessary if you are running a DNS server...
BTW: turning off Netbios should not affect your PCs.. It is an older technology that is not necessary if you are running a DNS server...
ASKER
Sorry, I neglected some "harmless" links in the registry: There were some file associations set to executables on the old server. Correcting these links solved the problem.
Thanks for your helpful comments!
Thanks for your helpful comments!
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nbtstat -RR
ipconfig /flushdns
ipconfig /registerdns