I manually check for update from our WSUS server，but it display code 80072ee2。 below is windowsupdatelog
2015-10-21 16:21:12:600 1096 3554 AU ########### AU: Uninitializing Automatic Updates ###########
2015-10-21 16:21:12:676 1096 3554 Service *********
2015-10-21 16:21:12:676 1096 3554 Service ** END ** Service: Service exit [Exit code = 0x240001]
2015-10-21 16:21:12:676 1096 3554 Service *************
2015-10-21 16:21:20:485 1096 3308 Misc =========== Logging initialized (build: 7.6.7601.18979, tz: +0800) ===========
2015-10-21 16:21:20:485 1096 3308 Misc = Process: C:\windows\system32\svchost.exe
2015-10-21 16:21:20:485 1096 3308 Misc = Module: c:\windows\system32\wuaueng.dll
2015-10-21 16:21:20:485 1096 3308 Service *************
2015-10-21 16:21:20:485 1096 3308 Service ** START ** Service: Service startup
2015-10-21 16:21:20:485 1096 3308 Service *********
2015-10-21 16:21:20:487 1096 3308 Agent * WU client version 7.6.7601.18979
2015-10-21 16:21:20:488 1096 3308 Agent * Base directory: C:\windows\SoftwareDistribution
2015-10-21 16:21:20:488 1096 3308 Agent * Access type: No proxy
2015-10-21 16:21:20:488 1096 3308 Agent * Network state: Connected
2015-10-21 16:21:38:329 1096 1d58 Report CWERReporter::Init succeeded
2015-10-21 16:21:38:329 1096 1d58 Agent *********** Agent: Initializing Windows Update Agent ***********
2015-10-21 16:21:38:332 1096 1d58 Agent * Prerequisite roots succeeded.
2015-10-21 16:21:38:332 1096 1d58 Agent *********** Agent: Initializing global settings cache ***********
2015-10-21 16:21:38:333 1096 1d58 Agent * WSUS server: http://cnwsus.cn.alcatel-lucent.com
2015-10-21 16:21:38:333 1096 1d58 Agent * WSUS status server: http://cnwsus.cn.alcatel-lucent.com
2015-10-21 16:21:38:333 1096 1d58 Agent * Target group: _Test
2015-10-21 16:21:38:333 1096 1d58 Agent * Windows Update access disabled: No
2015-10-21 16:21:38:333 1096 1d58 DnldMgr Download manager restoring 0 downloads
2015-10-21 16:21:38:334 1096 1d58 AU ########### AU: Initializing Automatic Updates ###########
2015-10-21 16:21:38:336 1096 1d58 AU # WSUS server: http://cnwsus.cn.alcatel-lucent.com
2015-10-21 16:21:38:336 1096 1d58 AU # Detection frequency: 22
2015-10-21 16:21:38:336 1096 1d58 AU # Target group: _Test
2015-10-21 16:21:38:336 1096 1d58 AU # Approval type: Scheduled (Policy)
2015-10-21 16:21:38:336 1096 1d58 AU # Scheduled install day/time: Every day at 3:00
2015-10-21 16:21:38:336 1096 1d58 AU # Auto-install minor updates: Yes (User preference)
2015-10-21 16:21:38:336 1096 1d58 AU # Will interact with non-admins (Non-admins are elevated (Policy))
2015-10-21 16:21:38:337 1096 1d58 AU Setting AU scheduled install time to 2015-10-21 19:00:00
2015-10-21 16:21:38:412 1096 3308 Report *********** Report: Initializing static reporting data ***********
2015-10-21 16:21:38:412 1096 3308 Report * OS Version = 6.1.7601.1.0.65792
2015-10-21 16:21:38:412 1096 3308 Report * OS Product Type = 0x00000030
2015-10-21 16:21:38:421 1096 3308 Report * Computer Brand = Hewlett-Packard
2015-10-21 16:21:38:421 1096 3308 Report * Computer Model = HP ProBook 640 G1
2015-10-21 16:21:38:423 1096 3308 Report * Bios Revision = L77 Ver. 01.02
2015-10-21 16:21:38:423 1096 3308 Report * Bios Name = Default System BIOS
2015-10-21 16:21:38:423 1096 3308 Report * Bios Release Date = 2013-12-05T00:00:00
2015-10-21 16:21:38:423 1096 3308 Report * Locale ID = 2052
2015-10-21 16:21:38:791 1096 1d58 AU Successfully wrote event for AU health state:0
2015-10-21 16:21:38:791 1096 1d58 AU Initializing featured updates
2015-10-21 16:21:38:791 1096 1d58 AU Found 0 cached featured updates
2015-10-21 16:21:38:792 1096 1d58 AU Successfully wrote event for AU health state:0
2015-10-21 16:21:38:794 1096 1d58 AU Successfully wrote event for AU health state:0
2015-10-21 16:21:38:794 1096 1d58 AU AU finished delayed initialization
2015-10-21 16:21:38:795 1096 3308 AU #############
2015-10-21 16:21:38:795 1096 3308 AU ## START ## AU: Search for updates
2015-10-21 16:21:38:795 1096 3308 AU #########
2015-10-21 16:21:38:796 1096 3308 AU <<## SUBMITTED ## AU: Search for updates [CallId = {8B91439A-0912-4AF1-AAF3-DF95254DC775}]
2015-10-21 16:21:38:797 1096 1d58 AU Triggering AU detection through DetectNow API
2015-10-21 16:21:38:797 1096 1d58 AU Will do the detection after current detection completes
2015-10-21 16:21:38:808 1096 2ee4 Agent *************
2015-10-21 16:21:38:808 1096 2ee4 Agent ** START ** Agent: Finding updates [CallerId = AutomaticUpdates]
2015-10-21 16:21:38:808 1096 2ee4 Agent *********
2015-10-21 16:21:38:808 1096 2ee4 Agent * Online = No; Ignore download priority = No
2015-10-21 16:21:38:808 1096 2ee4 Agent * Criteria = "IsInstalled=0 and DeploymentAction='Installation' or IsPresent=1 and DeploymentAction='Uninstallation'
or IsInstalled=1 and DeploymentAction='Installation' and RebootRequired=1 or IsInstalled=0 and DeploymentAction='Uninstallation' and RebootRequired=1"
2015-10-21 16:21:38:808 1096 2ee4 Agent * ServiceID = {3DA21691-E39D-4DA6-8A4B-B43877BCB1B7} Managed
2015-10-21 16:21:38:808 1096 2ee4 Agent * Search Scope = {Machine}
2015-10-21 16:21:43:432 1096 2ee4 Agent * Found 0 updates and 52 categories in search; evaluated appl. rules of 232 out of 554 deployed entities
2015-10-21 16:21:43:432 1096 2ee4 Agent *********
2015-10-21 16:21:43:432 1096 2ee4 Agent ** END ** Agent: Finding updates [CallerId = AutomaticUpdates]
2015-10-21 16:21:43:432 1096 2ee4 Agent *************
2015-10-21 16:21:43:433 1096 3820 AU >>## RESUMED ## AU: Search for updates [CallId = {8B91439A-0912-4AF1-AAF3-DF95254DC775}]
2015-10-21 16:21:43:433 1096 3820 AU # 0 updates detected
2015-10-21 16:21:43:433 1096 3820 AU #########
2015-10-21 16:21:43:433 1096 3820 AU ## END ## AU: Search for updates [CallId = {8B91439A-0912-4AF1-AAF3-DF95254DC775}]
2015-10-21 16:21:43:433 1096 3820 AU #############
2015-10-21 16:21:43:433 1096 3820 AU Featured notifications is disabled.
2015-10-21 16:21:43:433 1096 3820 AU Setting AU scheduled install time to 2015-10-21 19:00:00
2015-10-21 16:21:43:434 1096 3820 AU Successfully wrote event for AU health state:0
2015-10-21 16:21:43:434 1096 3820 AU Successfully wrote event for AU health state:0
2015-10-21 16:21:43:434 1096 3308 AU #############
2015-10-21 16:21:43:434 1096 3308 AU ## START ## AU: Search for updates
2015-10-21 16:21:43:434 1096 3308 AU #########
2015-10-21 16:21:43:436 1096 3308 AU <<## SUBMITTED ## AU: Search for updates [CallId = {3ADC4B46-72FF-4CB9-B6DD-0377DC86E1CA}]
2015-10-21 16:21:43:436 1096 2ee4 Agent *************
2015-10-21 16:21:43:436 1096 2ee4 Agent ** START ** Agent: Finding updates [CallerId = AutomaticUpdates]
2015-10-21 16:21:43:436 1096 2ee4 Agent *********
2015-10-21 16:21:43:436 1096 2ee4 Agent * Online = Yes; Ignore download priority = No
2015-10-21 16:21:43:436 1096 2ee4 Agent * Criteria = "IsInstalled=0 and DeploymentAction='Installation' or IsPresent=1 and DeploymentAction='Uninstallation'
or IsInstalled=1 and DeploymentAction='Installation' and RebootRequired=1 or IsInstalled=0 and DeploymentAction='Uninstallation' and RebootRequired=1"
2015-10-21 16:21:43:436 1096 2ee4 Agent * ServiceID = {3DA21691-E39D-4DA6-8A4B-B43877BCB1B7} Managed
2015-10-21 16:21:43:436 1096 2ee4 Agent * Search Scope = {Machine}
2015-10-21 16:21:43:436 1096 2ee4 Setup Checking for agent SelfUpdate
2015-10-21 16:21:43:436 1096 2ee4 Setup Client version: Core: 7.6.7601.18979 Aux: 7.6.7601.18979
2015-10-21 16:22:01:802 1096 2ee4 Misc Validating signature for C:\windows\SoftwareDistribution\SelfUpdate\wuident.cab with dwProvFlags 0x00000080:
2015-10-21 16:22:01:823 1096 2ee4 Misc Microsoft signed: NA
2015-10-21 16:22:01:823 1096 2ee4 Misc WARNING: Cab does not contain correct inner CAB file.
2015-10-21 16:22:01:824 1096 2ee4 Misc Validating signature for C:\windows\SoftwareDistribution\SelfUpdate\wuident.cab with dwProvFlags 0x00000080:
2015-10-21 16:22:01:836 1096 2ee4 Misc Microsoft signed: NA
2015-10-21 16:22:01:838 1096 2ee4 Setup Wuident for the managed service is valid but not quorum-signed. Skipping selfupdate.
2015-10-21 16:22:01:838 1096 2ee4 Setup Skipping SelfUpdate check based on the /SKIP directive in wuident
2015-10-21 16:22:01:838 1096 2ee4 Setup SelfUpdate check completed. SelfUpdate is NOT required.
2015-10-21 16:22:01:948 1096 2ee4 PT +++++++++++ PT: Synchronizing server updates +++++++++++
2015-10-21 16:22:01:948 1096 2ee4 PT + ServiceId = {3DA21691-E39D-4DA6-8A4B-B43877BCB1B7}, Server URL = http://cnwsus.cn.alcatel-lucent.com/ClientWebService/client.asmx
2015-10-21 16:22:01:959 1096 2ee4 PT WARNING: Cached cookie has expired or new PID is available
2015-10-21 16:22:01:960 1096 2ee4 PT Initializing simple targeting cookie, clientId = 8035ab08-658f-4269-b2c1-9391650a1b73, target group = _Test, DNS name = cv0026650n3.ad4.ad.alcatel.com
2015-10-21 16:22:01:960 1096 2ee4 PT Server URL = http://cnwsus.cn.alcatel-lucent.com/SimpleAuthWebService/SimpleAuth.asmx
2015-10-21 16:25:55:712 1096 2ee4 Misc WARNING: Send failed with hr = 80072ee2.
2015-10-21 16:25:55:712 1096 2ee4 Misc WARNING: SendRequest failed with hr = 80072ee2. Proxy List used: <(null)> Bypass List used : <(null)> Auth Schemes used
: <>
2015-10-21 16:25:55:712 1096 2ee4 Misc FATAL: SOAP/WinHttp - SendRequest: SendRequestUsingProxy failed. error 0x80072ee2
2015-10-21 16:25:55:712 1096 2ee4 PT + Last proxy send request failed with hr = 0x80072EE2, HTTP status code = 0
2015-10-21 16:25:55:712 1096 2ee4 PT + Caller provided credentials = No
2015-10-21 16:25:55:712 1096 2ee4 PT + Impersonate flags = 0
2015-10-21 16:25:55:712 1096 2ee4 PT + Possible authorization schemes used =
2015-10-21 16:25:55:712 1096 2ee4 PT WARNING: SyncUpdates failure, error = 0x80072EE2, soap client error = 5, soap error code = 0, HTTP status code = 200
2015-10-21 16:25:55:712 1096 2ee4 PT WARNING: PTError: 0x80072ee2
2015-10-21 16:25:55:712 1096 2ee4 PT WARNING: SyncUpdates_WithRecovery failed.: 0x80072ee2
2015-10-21 16:25:55:712 1096 2ee4 PT WARNING: Sync of Updates: 0x80072ee2
2015-10-21 16:25:55:712 1096 2ee4 PT WARNING: SyncServerUpdatesInternal failed: 0x80072ee2
2015-10-21 16:25:55:713 1096 2ee4 Agent * WARNING: Failed to synchronize, error = 0x80072EE2
2015-10-21 16:25:55:713 1096 2ee4 Agent * WARNING: Exit code = 0x80072EE2
2015-10-21 16:25:55:713 1096 2ee4 Agent *********
2015-10-21 16:25:55:713 1096 2ee4 Agent ** END ** Agent: Finding updates [CallerId = AutomaticUpdates]
2015-10-21 16:25:55:713 1096 2ee4 Agent *************
2015-10-21 16:25:55:713 1096 2ee4 Agent WARNING: WU client failed Searching for update with error 0x80072ee2
2015-10-21 16:25:55:714 1096 2ee4 Report REPORT EVENT: {3617893F-1BA4-4F16-811B-86199EEA26F1} 2015-10-21 16:21:38:792+0800 1 202 102 {00000000-0000-0000-0000-000000000000} 0 0 AutomaticUpdates Success Content Install Reboot completed.
2015-10-21 16:25:55:714 1096 3820 AU >>## RESUMED ## AU: Search for updates [CallId = {3ADC4B46-72FF-4CB9-B6DD-0377DC86E1CA}]
2015-10-21 16:25:55:714 1096 3820 AU # WARNING: Search callback failed, result = 0x80072EE2
2015-10-21 16:25:55:714 1096 3820 AU # WARNING: Failed to find updates with error code 80072EE2
2015-10-21 16:25:55:714 1096 3820 AU #########
2015-10-21 16:25:55:714 1096 3820 AU ## END ## AU: Search for updates [CallId = {3ADC4B46-72FF-4CB9-B6DD-0377DC86E1CA}]
2015-10-21 16:25:55:714 1096 3820 AU #############
2015-10-21 16:25:55:715 1096 3820 AU Successfully wrote event for AU health state:0
2015-10-21 16:25:55:715 1096 3820 AU AU setting next detection timeout to 2015-10-21 13:25:55
2015-10-21 16:25:55:716 1096 3820 AU Setting AU scheduled install time to 2015-10-21 19:00:00
2015-10-21 16:25:55:716 1096 3820 AU Successfully wrote event for AU health state:0
2015-10-21 16:25:55:718 1096 3820 AU Successfully wrote event for AU health state:0
2015-10-21 16:26:00:712 1096 2ee4 Report REPORT EVENT: {05FF2062-319E-410B-9EBC-F72F0F326AA9} 2015-10-21 16:25:55:713+0800 1 148 101 {00000000-0000-0000-0000-000000000000} 0 80072ee2 AutomaticUpdates Failure Software Synchronization Windows
Update Client failed to detect with error 0x80072ee2.
2015-10-21 16:26:00:720 1096 2ee4 Report CWERReporter::HandleEvents - WER report upload completed with status 0x8
2015-10-21 16:26:00:720 1096 2ee4 Report WER Report sent: 7.6.7601.18979 0x80072ee2(0) 0000000-0000-0000-0000-000000000000 Scan 0 1 AutomaticUpdates {3DA21691-E39D-4DA6-8A4B-B43877BCB1B7}
0