SMB Resource unavailable

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SMB Resource unavailable

L0 Member


Today we had an issue with our PA-820. The access to our fileserver via SMB was reported as Resource not available in the firewall monitor and nearly all users had difficulties while accessing the file-server.

We solved that issue by switching to our passive firewall. Then everything was immediately working correctly.

We are using PAN-OS 9.1.8. Did anyone else had that issue?


L6 Presenter

During the issue did you check the memory, dataplane or managment plane CPU? Or it could interface errors also sometimes if the firewall has a full disk space partition it can act strange.





One thing is if the SMB is a long lived connection it could have timeouted:

Hello Nikolay,

Thanks for your response! I don't think that the timeout settings are the reason for this. The firewall is working with the same settings for a long while now and we never had to change them. I remember that the dataplane CPU was about 50% but the other way below.

Do you have any other suggestions?

L6 Presenter

You may check the files dp-monitor log and cp-monitor log at that time if something jumped. Also check the system logs from the GUI.






Also see if the Pan(w)achrome exention to chrome can give you better info:

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