Error 0x80004005,Description : Unspecified error F/B Receiver; (37995) Packet processing (4254966)

Errors similar to the following keep appearing every few seconds in the logs:

ACSAlerts.log:

![2011/12/02 11:04:23.762] (3) Error :<F/B Receiver> (37995) Packet processing from Packet Queue failed. Packet ID: /o=Company/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=user1, version: 627. Code : 0x80004005,Description : Unspecified error
![2011/12/02 11:04:41.047] (3) Error :<F/B Receiver> (37995) Packet processing from Packet Queue failed. Packet ID: /o=Company/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=user2, version: 1155. Code : 0x80070057,Description : The parameter is incorrect.
![2011/12/02 11:05:15.600] (3) Error :<F/B Receiver> (37995) Packet processing from Packet Queue failed. Packet ID: /o=Company/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=user3, version: 441. Code : 0x80004005,Description : Unspecified error
![2011/12/02 11:05:50.154] (3) Error :<F/B Receiver> (37995) Packet processing from Packet Queue failed. Packet ID: /o=Company/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=user4, version: 924. Code : 0x80004005,Description : Unspecified error

FBReceiver.log:

02/12 14:36:07:798 | SequenceManager.cpp(139) | 5212 | Version Check. initial = true exists in DB true result: true
02/12 14:36:23:929 | ApplyFBProp.cpp(372) | 5760 | Message updated with result: -2147467259
02/12 14:36:23:929 | ApplyFBProp.cpp(320) | 5760 | *** EXCEPTION Exiting CApplyFBProp::PutFBProp
02/12 14:36:23:929 | ApplyFBProp.cpp(143) | 5760 | Error: Unspecified error
0x80004005
02/12 14:36:23:929 | ApplyFBProp.cpp(94) | 5760 | *** EXCEPTION Exiting CApplyFBProp::ApplyProp
02/12 14:36:58:623 | ApplyFBProp.cpp(372) | 1912 | Message updated with result: -2147