Subnet Scan Issue

scott.skalny · 2009-04-24T19:10:06+00:00

4/24/2009 3:01 PM The scanning of 'Unix Backup Network' started at has failed with error: '4/24/2009 2:47:59 PM'. 4/24/2009 3:01 PM The scanning of 'SP Network #1' started at has failed with error: '4/24/2009 2:41:24 PM'. ??? No Scanning is working.

scott.skalny

	4/24/2009 3:01 PM			The scanning of 'Unix Backup Network' started at has failed with error: '4/24/2009 2:47:59 PM'.
	4/24/2009 3:01 PM			The scanning of 'SP Network #1' started at has failed with error: '4/24/2009 2:41:24 PM'.

???

No Scanning is working.

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scott.skalny

just tried it again and it worked...odd...

bshopp

Let us know if you see this behavior continue

scott.skalny

	4/26/2009 9:50 PM			The scanning of 'Unix Backup Network' started at has failed with error: '4/26/2009 9:26:51 PM'.
	4/26/2009 9:50 PM			The scanning of 'SP Network #1' started at has failed with error: '4/26/2009 9:26:36 PM'.

Happened again and hasn't scanned since the failure.

hesonder

Had the same problem, all of a sudden got the same error. It would be nice if it was actually giving me more than a timestamp as error.

Anyway, checked the event logs and noticed 2 errors in the SolarWinds.Net log, just when the first scanning failure occurred. The errors were generated by the "WirelessPollingService" (go figure):

Error Loading Scrach Table Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.
Error Opening MainTaskDataReader Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding

Looking in the Application event log I notice .Net Runtime 2.0 Errors related to the sqjobengineworker.exe like :

EventType clr20r3, P1 swjobenginesvc.exe, P2 1.1.1.5002, P3 49831b14, P4 mscorlib, P5 2.0.0.0, P6 471ebc5b, P7 416b, P8 27, P9 system.objectdisposedexception, P10 NIL.
EventType clr20r3, P1 swjobengineworker.exe, P2 1.1.1.5002, P3 49831b15, P4 mscorlib, P5 2.0.0.0, P6 471ebc5b, P7 dd, P8 10, P9 system.argumentexception, P10 NIL.

Those errors started after I started using IPAM.

After restarting the WirelessPollingService, I was able to scan subnets again!