Windows Server 2012 R2 Domain controller. Intsalled roles are RDGateway, AD DS, WSUS, DHCP and DNS. Has 30 plus windows 7 Pro workstations joined to the domain. WSUS apparently "broke" on or about the first week of April. Since that time, all workstations report "status not yet reported" in the WSUS console. However, the DC itself is the only one that does show a status and can get/install updates from the WSUS which is installed on that DC.
As a test, I installed 2008 R2 on and old server computer from back at the shop, then installed/setup WSUS on it. joined it to the domain, pointed a few workstations to use that WSUS, and they work just fine with no issues. This tells me (proves???) that there is no issue with any of the 30 plus workstations. The issue is on the WSUS itself.
Here is a windowsupdate.log file from one of the workstations. Maybe this will help identify what the problem is on the WSUS side? From what I see, it looks like an issue with the authorization cookie. But that's just a WAG on my part based on no discernible facts what-so-ever.
2016-06-09 14:50:56:486 1096 110 Misc =========== Logging initialized (build: 7.6.7601.19161, tz: -0400) ===========
2016-06-09 14:50:56:486 1096 110 Misc = Process: C:\Windows\system32\svchost.exe
2016-06-09 14:50:56:486 1096 110 Misc = Module: c:\windows\system32\wuaueng.dll
2016-06-09 14:50:56:486 1096 110 Service *************
2016-06-09 14:50:56:487 1096 110 Service ** START ** Service: Service startup
2016-06-09 14:50:56:487 1096 110 Service *********
2016-06-09 14:50:56:490 1096 110 Agent * WU client version 7.6.7601.19161
2016-06-09 14:50:56:491 1096 110 Agent * Base directory: C:\Windows\SoftwareDistribution
2016-06-09 14:50:56:491 1096 110 Agent * Access type: No proxy
2016-06-09 14:50:56:492 1096 110 Agent * Network state: Connected
2016-06-09 14:50:57:036 1096 110 DtaStor Default service for AU is {00000000-0000-0000-0000-000000000000}
2016-06-09 14:50:57:037 1096 110 DtaStor Default service for AU is {9482F4B4-E343-43B6-B170-9A65BC822C77}
2016-06-09 14:50:57:042 1096 110 Agent WARNING: failed to access the auth cab, fatal error 0x80070003
2016-06-09 14:50:57:042 1096 110 Agent WARNING: Invalid service in the backup data store; cleaning up
2016-06-09 14:50:57:043 1096 110 Agent WARNING: Failed to add and register service 7971f918-a847-4430-9279-4a52d1efe18d to the data store 0x80240031
2016-06-09 14:50:57:043 1096 110 Agent WARNING: Default Service Recovery: Attempting to add pending registration for service 7971f918-a847-4430-9279-4a52d1efe18d to the data store
2016-06-09 14:51:09:742 1096 e70 Report CWERReporter::Init succeeded
2016-06-09 14:51:09:742 1096 e70 Agent *********** Agent: Initializing Windows Update Agent ***********
2016-06-09 14:51:09:743 1096 e70 Agent * Prerequisite roots succeeded.
2016-06-09 14:51:09:743 1096 e70 Agent *********** Agent: Initializing global settings cache ***********
2016-06-09 14:51:09:743 1096 e70 Agent * WSUS server:http://odaserver:8530
2016-06-09 14:51:09:743 1096 e70 Agent * WSUS status server:http://odaserver:8530
2016-06-09 14:51:09:743 1096 e70 Agent * Target group: (Unassigned Computers)
2016-06-09 14:51:09:743 1096 e70 Agent * Windows Update access disabled: No
2016-06-09 14:51:09:747 1096 e70 DnldMgr Download manager restoring 0 downloads
2016-06-09 14:51:10:269 1096 110 Report *********** Report: Initializing static reporting data ***********
2016-06-09 14:51:10:269 1096 110 Report * OS Version = 6.1.7601.1.0.65792
2016-06-09 14:51:10:269 1096 110 Report * OS Product Type = 0x00000030
2016-06-09 14:51:10:274 1096 110 Report * Computer Brand = Dell Inc.
2016-06-09 14:51:10:274 1096 110 Report * Computer Model = Inspiron 3847
2016-06-09 14:51:10:276 1096 110 Report * Bios Revision = A04
2016-06-09 14:51:10:276 1096 110 Report * Bios Name = BIOS Date: 04/03/14 15:32:12 Ver: 04.06.05
2016-06-09 14:51:10:276 1096 110 Report * Bios Release Date = 2014-04-03T00:00:00
2016-06-09 14:51:10:276 1096 110 Report * Locale ID = 1033
2016-06-09 14:51:42:046 1096 110 AU ########### AU: Initializing Automatic Updates ###########
2016-06-09 14:51:42:047 1096 110 AU # WSUS server:http://odaserver:8530
2016-06-09 14:51:42:047 1096 110 AU # Detection frequency: 1
2016-06-09 14:51:42:047 1096 110 AU # Approval type: Scheduled (Policy)
2016-06-09 14:51:42:047 1096 110 AU # Scheduled install day/time: Every day at 1:00
2016-06-09 14:51:42:047 1096 110 AU # Auto-install minor updates: Yes (Policy)
2016-06-09 14:51:42:047 1096 110 AU # Will interact with non-admins (Non-admins are elevated (Policy))
2016-06-09 14:51:42:048 1096 110 AU Setting AU scheduled install time to 2016-06-10 05:00:00
2016-06-09 14:51:42:049 1096 110 AU Successfully wrote event for AU health state:0
2016-06-09 14:51:42:049 1096 110 AU Initializing featured updates
2016-06-09 14:51:42:049 1096 110 AU Found 0 cached featured updates
2016-06-09 14:51:42:050 1096 110 AU Successfully wrote event for AU health state:0
2016-06-09 14:51:42:051 1096 110 AU Successfully wrote event for AU health state:0
2016-06-09 14:51:42:051 1096 110 AU AU finished delayed initialization
2016-06-09 14:52:34:615 1096 4cc AU Triggering AU detection through DetectNow API
2016-06-09 14:52:34:615 1096 4cc AU Triggering Online detection (non-interactive)
2016-06-09 14:52:34:616 1096 110 AU #############
2016-06-09 14:52:34:617 1096 110 AU ## START ## AU: Search for updates
2016-06-09 14:52:34:617 1096 110 AU #########
2016-06-09 14:52:34:618 1096 110 AU <<## SUBMITTED ## AU: Search for updates [CallId = {E2F98E62-E01E-4E41-8EAC-2FAB1E45883C}]
2016-06-09 14:52:34:619 1096 9dc Agent *************
2016-06-09 14:52:34:619 1096 9dc Agent ** START ** Agent: Finding updates [CallerId = AutomaticUpdates]
2016-06-09 14:52:34:619 1096 9dc Agent *********
2016-06-09 14:52:34:619 1096 9dc Agent * Online = Yes; Ignore download priority = No
2016-06-09 14:52:34:619 1096 9dc 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"
2016-06-09 14:52:34:619 1096 9dc Agent * ServiceID = {3DA21691-E39D-4DA6-8A4B-B43877BCB1B7} Managed
2016-06-09 14:52:34:619 1096 9dc Agent * Search Scope = {Machine}
2016-06-09 14:52:34:619 1096 9dc Setup Checking for agent SelfUpdate
2016-06-09 14:52:34:620 1096 9dc Setup Client version: Core: 7.6.7601.19161 Aux: 7.6.7601.19161
2016-06-09 14:52:36:913 1096 9dc Misc Validating signature for C:\Windows\SoftwareDistribution\SelfUpdate\wuident.cab with dwProvFlags 0x00000080:
2016-06-09 14:52:36:943 1096 9dc Misc Microsoft signed: NA
2016-06-09 14:52:36:948 1096 9dc Misc Validating signature for C:\Windows\SoftwareDistribution\SelfUpdate\TMP4CD5.tmp with dwProvFlags 0x00000080:
2016-06-09 14:52:36:984 1096 9dc Misc Microsoft signed: NA
2016-06-09 14:52:36:993 1096 9dc Misc WARNING: WinHttp: SendRequestToServerForFileInformation failed with 0x80190194
2016-06-09 14:52:36:993 1096 9dc Misc WARNING: WinHttp: ShouldFileBeDownloaded failed with 0x80190194
2016-06-09 14:52:36:993 1096 9dc Misc WARNING: DownloadFileInternal failed forhttp://odaserver:8530/selfupdate/WSUS3/x86/Win7SP1/wsus3setup.cab: error 0x80190194
2016-06-09 14:52:36:993 1096 9dc Setup WARNING: SelfUpdate check failed to download package information, error = 0x80244019
2016-06-09 14:52:36:993 1096 9dc Setup FATAL: SelfUpdate check failed, err = 0x80244019
2016-06-09 14:52:36:993 1096 9dc Agent * WARNING: Skipping scan, self-update check returned 0x80244019
2016-06-09 14:52:36:994 1096 9dc Agent * WARNING: Exit code = 0x80244019
2016-06-09 14:52:36:994 1096 9dc Agent *********
2016-06-09 14:52:36:994 1096 9dc Agent ** END ** Agent: Finding updates [CallerId = AutomaticUpdates]
2016-06-09 14:52:36:994 1096 9dc Agent *************
2016-06-09 14:52:36:994 1096 9dc Agent WARNING: WU client failed Searching for update with error 0x80244019
2016-06-09 14:52:36:994 1096 744 AU >>## RESUMED ## AU: Search for updates [CallId = {E2F98E62-E01E-4E41-8EAC-2FAB1E45883C}]
2016-06-09 14:52:36:994 1096 744 AU # WARNING: Search callback failed, result = 0x80244019
2016-06-09 14:52:36:994 1096 744 AU # WARNING: Failed to find updates with error code 80244019
2016-06-09 14:52:36:994 1096 744 AU #########
2016-06-09 14:52:36:995 1096 744 AU ## END ## AU: Search for updates [CallId = {E2F98E62-E01E-4E41-8EAC-2FAB1E45883C}]
2016-06-09 14:52:36:995 1096 744 AU #############
2016-06-09 14:52:36:999 1096 744 AU Successfully wrote event for AU health state:0
2016-06-09 14:52:36:999 1096 744 AU AU setting next detection timeout to 2016-06-09 19:46:38
2016-06-09 14:52:36:999 1096 744 AU Setting AU scheduled install time to 2016-06-10 05:00:00
2016-06-09 14:52:37:000 1096 744 AU Successfully wrote event for AU health state:0
2016-06-09 14:52:37:001 1096 744 AU Successfully wrote event for AU health state:0
2016-06-09 14:52:41:993 1096 9dc Report REPORT EVENT: {B2930AB8-D141-4AC6-857E-982E84C657E3} 2016-06-09 14:52:36:993-0400 1 148 101 {D67661EB-2423-451D-BF5D-13199E37DF28} 1 80244019 SelfUpdate Failure Software
Synchronization Windows Update Client failed to detect with error 0x80244019.
2016-06-09 14:52:42:010 1096 9dc Report CWERReporter::HandleEvents - WER report upload completed with status 0x8
2016-06-09 14:52:42:010 1096 9dc Report WER Report sent: 7.6.7601.19161 0x80244019(0) 67661EB-2423-451D-BF5D-13199E37DF28 Scan 1 0 SelfUpdate {3DA21691-E39D-4DA6-8A4B-B43877BCB1B7} 0
2016-06-09 14:53:44:127 1096 9dc PT WARNING: Cached cookie has expired or new PID is available
2016-06-09 14:53:44:127 1096 9dc PT Initializing simple targeting cookie, clientId = 98f038ea-0185-4c56-a65e-a06f119d83cb, target group = , DNS name = backoffice.oxforddental.local
2016-06-09 14:53:44:127 1096 9dc PT Server URL =
http://odaserver:8530/SimpleAuthWebService/SimpleAuth.asmx
2016-06-09 14:53:44:374 1096 9dc Report Uploading 1 events using cached cookie, reporting URL =http://odaserver:8530/ReportingWebService/ReportingWebService.asmx
2016-06-09 14:53:44:379 1096 9dc Report Reporter successfully uploaded 1 events.