We manage a group of clients on multiple, separate networks. We're using WSUS for obvious reasons but we haven't been able to update in some time. the following is from the windowsupdate.log:
2012-12-26 07:58:17:857 1988 4674 Report CWERReporter finishing event handling. (00000000)
2012-12-26 07:58:17:857 1988 4674 Report REPORT EVENT: {73CB518B-1CA7-424F-807F-13197EC7EDD1} 2012-12-26 07:50:39:143-0800 1 202 102 {00000000-0000-0000-0000-000000000000} 0 0 AutomaticUpdates Success Content
Install Reboot completed.
2012-12-26 07:58:17:857 1988 4674 Report CWERReporter finishing event handling. (00000000)
2012-12-26 07:58:17:857 1988 4674 Report CWERReporter finishing event handling. (00000000)
2012-12-26 07:58:17:857 1988 4674 Report WARNING: Reporter failed to upload events with hr = 80240004.
2012-12-26 07:58:17:857 1988 4674 Report WARNING: Reporter failed to upload events with hr = 80240004.
2012-12-26 07:58:17:857 1988 4674 Report WARNING: Reporter failed to upload events with hr = 80240004.
2012-12-26 07:58:17:857 1988 4674 Report WARNING: Reporter failed to upload events with hr = 80240004.
2012-12-26 07:58:18:574 1988 4674 Service *********
2012-12-26 07:58:18:590 1988 4674 Service ** END ** Service: Service exit [Exit code = 0x240001]
2012-12-26 07:58:18:590 1988 4674 Service *************
2012-12-26 07:58:47:854 3480 e58 COMAPI FATAL: Unable to connect to the service (hr=80080005)
2012-12-26 07:58:47:854 3480 e58 COMAPI WARNING: Unable to establish connection to the service. (hr=80080005)
2012-12-26 07:58:47:854 3480 e58 COMAPI -------------
2012-12-26 07:58:47:854 3480 e58 COMAPI -- START -- COMAPI: Search [ClientId = <NULL>]
2012-12-26 07:58:47:854 3480 e58 COMAPI ---------
2012-12-26 07:58:47:854 1988 218 Misc =========== Logging initialized (build: 7.6.7600.256, tz: -0800) ===========
2012-12-26 07:58:47:854 1988 218 Misc = Process: C:\Windows\system32\svchost.exe
2012-12-26 07:58:47:854 1988 218 Misc = Module: c:\windows\system32\wuaueng.dll
2012-12-26 07:58:47:854 1988 218 Service *************
2012-12-26 07:58:47:854 1988 218 Service ** START ** Service: Service startup
2012-12-26 07:58:47:854 1988 218 Service *********
2012-12-26 07:58:47:870 1988 218 Agent * WU client version 7.6.7600.256
2012-12-26 07:58:47:870 1988 218 Agent * Base directory: C:\Windows\SoftwareDistribution
2012-12-26 07:58:47:870 1988 218 Agent * Access type: No proxy
2012-12-26 07:58:47:870 1988 218 Agent * Network state: Connected
2012-12-26 07:58:48:525 1988 45ec Report CWERReporter::Init succeeded
2012-12-26 07:58:48:525 1988 45ec Agent *********** Agent: Initializing Windows Update Agent ***********
2012-12-26 07:58:48:525 1988 45ec Agent *********** Agent: Initializing global settings cache ***********
2012-12-26 07:58:48:525 1988 45ec Agent * WSUS server:http://updates.ourdomain.com:80
2012-12-26 07:58:48:525 1988 45ec Agent * WSUS status server:http://updates.ourdomain.com:80
2012-12-26 07:58:48:525 1988 45ec Agent * Target group: (Unassigned Computers)
2012-12-26 07:58:48:525 1988 45ec Agent * Windows Update access disabled: No
2012-12-26 07:58:48:525 1988 45ec DnldMgr Download manager restoring 0 downloads
2012-12-26 07:58:48:556 3480 e58 COMAPI <<-- SUBMITTED -- COMAPI: Search [ClientId = <NULL>]
2012-12-26 07:58:48:681 1988 218 Report *********** Report: Initializing static reporting data ***********
2012-12-26 07:58:48:681 1988 218 Report * OS Version = 6.0.6002.2.0.131377
2012-12-26 07:58:48:681 1988 218 Report * OS Product Type = 0x00000009
2012-12-26 07:58:48:728 1988 218 Report * Computer Brand = Dell Inc.
2012-12-26 07:58:48:728 1988 218 Report * Computer Model = PowerEdge T105
2012-12-26 07:58:48:728 1988 218 Report * Bios Revision = 1.4.4
2012-12-26 07:58:48:728 1988 218 Report * Bios Name = Ver 1.00PARTTBLq
2012-12-26 07:58:48:728 1988 218 Report * Bios Release Date = 2009-07-30T00:00:00
2012-12-26 07:58:48:728 1988 218 Report * Locale ID = 1033
2012-12-26 07:58:48:728 1988 28b4 Agent *************
2012-12-26 07:58:48:728 1988 28b4 Agent ** START ** Agent: Finding updates [CallerId = ]
2012-12-26 07:58:48:728 1988 28b4 Agent *********
2012-12-26 07:58:48:728 1988 28b4 Agent * Online = Yes; Ignore download priority = No
2012-12-26 07:58:48:728 1988 28b4 Agent * Criteria = "IsInstalled = 0 AND IsHidden = 0"
2012-12-26 07:58:48:728 1988 28b4 Agent * ServiceID = {00000000-0000-0000-0000-000000000000} Third party service
2012-12-26 07:58:48:728 1988 28b4 Agent * Search Scope = {Machine}
2012-12-26 07:59:09:943 1988 28b4 PT +++++++++++ PT: Synchronizing server updates +++++++++++
2012-12-26 07:59:09:943 1988 28b4 PT + ServiceId = {3DA21691-E39D-4DA6-8A4B-B43877BCB1B7}, Server URL =http://updates.ourdomain.com:80/ClientWebService/client.asmx
2012-12-26 07:59:33:513 1988 218 AU ########### AU: Initializing Automatic Updates ###########
2012-12-26 07:59:33:513 1988 218 AU AU setting next detection timeout to 2012-12-26 15:59:33
2012-12-26 07:59:33:513 1988 218 AU # WSUS server:http://updates.ourdomain.com:80
2012-12-26 07:59:33:513 1988 218 AU # Detection frequency: 22
2012-12-26 07:59:33:513 1988 218 AU # Approval type: Scheduled (Policy)
2012-12-26 07:59:33:513 1988 218 AU # Scheduled install day/time: Sunday at 2:00
2012-12-26 07:59:33:513 1988 218 AU # Auto-install minor updates: Yes (Policy)
2012-12-26 07:59:33:513 1988 218 AU Setting AU scheduled install time to 2012-12-30 10:00:00
2012-12-26 07:59:33:513 1988 218 AU Initializing featured updates
2012-12-26 07:59:33:513 1988 218 AU Found 0 cached featured updates
2012-12-26 07:59:33:513 1988 218 AU AU setting pending client directive to 'Unable To Detect'
2012-12-26 07:59:33:513 1988 218 AU AU finished delayed initialization
2012-12-26 07:59:33:513 1988 218 AU #############
2012-12-26 07:59:33:513 1988 218 AU ## START ## AU: Search for updates
2012-12-26 07:59:33:513 1988 218 AU #########
2012-12-26 07:59:33:513 1988 218 AU <<## SUBMITTED ## AU: Search for updates [CallId = {A146CEAA-B19E-4DB8-BD2F-E4BF04265981}]
2012-12-26 07:59:34:730 1988 28b4 Handler FATAL: UH: 0x800b0100: EvaluateApplicability failed in CCbs::EvaluateApplicability
2012-12-26 07:59:34:839 1988 28b4 Agent WARNING: Failed to evaluate Installed rule, updateId = {5EC56A1A-E96A-4212-A7E0-7B6055FB0AC9}.101, hr = 800B0100
2012-12-26 07:59:41:172 1988 28b4 Handler FATAL: UH: 0x800b0100: EvaluateApplicability failed in CCbs::EvaluateApplicability
2012-12-26 07:59:41:266 1988 28b4 Agent WARNING: Failed to evaluate Installable rule, updateId = {5EC56A1A-E96A-4212-A7E0-7B6055FB0AC9}.101, hr = 800B0100
2012-12-26 07:59:47:880 1988 28b4 Handler FATAL: UH: 0x800b0100: EvaluateApplicability failed in CCbs::EvaluateApplicability
2012-12-26 07:59:48:520 1988 218 AU Launched new AU client for directive 'Unable To Detect', session id = 0x1
2012-12-26 07:59:48:551 512 40c4 Misc =========== Logging initialized (build: 7.6.7600.256, tz: -0800) ===========
2012-12-26 07:59:48:551 512 40c4 Misc = Process: C:\Windows\system32\wuauclt.exe
2012-12-26 07:59:48:551 512 40c4 AUClnt Launched Client UI process
2012-12-26 07:59:48:754 512 40c4 Misc =========== Logging initialized (build: 7.6.7600.256, tz: -0800) ===========
2012-12-26 07:59:48:754 512 40c4 Misc = Process: C:\Windows\system32\wuauclt.exe
2012-12-26 07:59:48:754 512 40c4 Misc = Module: C:\Windows\system32\wucltux.dll
2012-12-26 07:59:48:754 512 40c4 CltUI AU client got new directive = 'Unable To Detect', serviceId = {3DA21691-E39D-4DA6-8A4B-B43877BCB1B7}, return = 0
2012-12-26 07:59:58:378 1988 28b4 Handler FATAL: UH: 0x800b0100: EvaluateApplicability failed in CCbs::EvaluateApplicability
2012-12-26 07:59:58:472 1988 28b4 Agent WARNING: Failed to evaluate Installed rule, updateId = {A2946AD3-9509-46BF-B4C2-E968E8FB2C09}.102, hr = 800B0100
2012-12-26 08:00:04:946 1988 28b4 Handler FATAL: UH: 0x800b0100: EvaluateApplicability failed in CCbs::EvaluateApplicability
2012-12-26 08:00:05:055 1988 28b4 Agent WARNING: Failed to evaluate Installable rule, updateId = {A2946AD3-9509-46BF-B4C2-E968E8FB2C09}.102, hr = 800B0100
2012-12-26 08:00:11:279 1988 28b4 Handler FATAL: UH: 0x800b0100: EvaluateApplicability failed in CCbs::EvaluateApplicability
2012-12-26 08:00:14:570 1988 28b4 Handler FATAL: UH: 0x800b0100: EvaluateApplicability failed in CCbs::EvaluateApplicability
2012-12-26 08:00:14:570 1988 28b4 Agent WARNING: Failed to evaluate Installed rule, updateId = {9EAD7B68-6ABC-4F6E-BD60-5557E433D248}.101, hr = 800B0100
2012-12-26 08:00:14:820 1988 28b4 Handler FATAL: UH: 0x800b0100: EvaluateApplicability failed in CCbs::EvaluateApplicability
2012-12-26 08:00:14:820 1988 28b4 Agent WARNING: Failed to evaluate Installable rule, updateId = {9EAD7B68-6ABC-4F6E-BD60-5557E433D248}.101, hr = 800B0100
2012-12-26 08:00:15:070 1988 28b4 Handler FATAL: UH: 0x800b0100: EvaluateApplicability failed in CCbs::EvaluateApplicability
2012-12-26 08:00:17:784 1988 28b4 PT +++++++++++ PT: Synchronizing extended update info +++++++++++
2012-12-26 08:00:17:784 1988 28b4 PT + ServiceId = {3DA21691-E39D-4DA6-8A4B-B43877BCB1B7}, Server URL =http://updates.ourdomain.com:80/ClientWebService/client.asmx
2012-12-26 08:10:24:350 1988 27b0 AU Triggering AU detection through DetectNow API
2012-12-26 08:10:24:350 1988 27b0 AU Will do the detection after current detection completes
We've found and attempted many fixes but nont had any luck. I seem to remember this happening awhile back..Is there a way to prevent this from happening?