Unable to update Win8.1 devices over VPN - devices appear in SCCM, so are SEEN by SCCM/WSUS.
Extract of windowsupdate.log from client device:
2015-07-21 11:07:27:931 420 10a0 Agent * Include potentially superseded updates
2015-07-21 11:07:27:931 420 10a0 Agent * Online = Yes; Ignore download priority = Yes
2015-07-21 11:07:27:931 420 10a0 Agent * Criteria = "(DeploymentAction=* AND Type='Software') OR (DeploymentAction=* AND Type='Driver')"
2015-07-21 11:07:27:931 420 10a0 Agent * ServiceID = {3DA21691-E39D-4DA6-8A4B-B
43877BCB1B
7} Managed
2015-07-21 11:07:27:931 420 10a0 Agent * Search Scope = {Machine}
2015-07-21 11:07:27:931 420 10a0 Agent * Caller SID for Applicability: S-1-5-18
2015-07-21 11:07:27:931 420 10a0 Agent * RegisterService is set
2015-07-21 11:07:27:931 420 10a0 EP Got WSUS Client/Server URL: "
http://servername.local:8530/ClientWebService/client.asmx"
2015-07-21 11:07:28:431 420 10a0 PT +++++++++++ PT: Synchronizing server updates +++++++++++
2015-07-21 11:07:28:431 420 10a0 PT + ServiceId = {3DA21691-E39D-4DA6-8A4B-B
43877BCB1B
7}, Server URL =
http://servername.local:8530/ClientWebService/client.asmx
2015-07-21 11:07:28:431 420 10a0 PT WARNING: Cached cookie has expired or new PID is available
2015-07-21 11:07:28:431 420 10a0 EP Got WSUS SimpleTargeting URL: "
http://servername.local:8530"
2015-07-21 11:07:28:431 420 10a0 IdleTmr WU operation (CAuthorizationCookieWrapp
er::Initia
lizeSimple
TargetingC
ookie) started; operation # 6; does use network; is at background priority
2015-07-21 11:07:28:431 420 10a0 PT Initializing simple targeting cookie, clientId = 033c840a-86a4-43e4-95f1-ce
649aed8dfc
, target group = , DNS name = device.domain.local
2015-07-21 11:07:28:431 420 10a0 PT Server URL =
http://servername.local:8530/SimpleAuthWebService/SimpleAuth.asmx
2015-07-21 11:07:49:478 420 10a0 WS WARNING: Nws Failure: errorCode=0x803d0006
2015-07-21 11:07:49:478 420 10a0 WS WARNING: Original error code: 0x80072ee2
2015-07-21 11:07:49:478 420 10a0 WS WARNING: Error string with resource id '0x81' is not found for the language id '0x809'.
2015-07-21 11:07:49:478 420 10a0 WS WARNING: Could not get error string (errorCode=0x80073b01)
2015-07-21 11:07:49:478 420 10a0 WS WARNING: MapToSusHResult mapped Nws error 0x803d0006 to 0x8024401c
2015-07-21 11:07:49:478 420 10a0 WS WARNING: Web service call failed with hr = 8024401c.
2015-07-21 11:07:49:478 420 10a0 WS WARNING: Current service auth scheme='None'.
2015-07-21 11:07:49:478 420 10a0 WS WARNING: Proxy List used: '(null)', Bypass List used: '(null)', Last Proxy used: '(null)', Last auth Schemes used: 'None'.
2015-07-21 11:07:49:478 420 10a0 WS FATAL: OnCallFailure failed with hr=0X8024401C
2015-07-21 11:07:49:478 420 10a0 WS WARNING: NWS retry 1 for transient error 0x8024401C
2015-07-21 11:08:12:514 420 10a0 WS WARNING: Nws Failure: errorCode=0x803d0006
2015-07-21 11:08:12:514 420 10a0 WS WARNING: Original error code: 0x80072ee2
2015-07-21 11:08:12:514 420 10a0 WS WARNING: Could not get error string (errorCode=0x80073b01)
2015-07-21 11:08:12:514 420 10a0 WS WARNING: MapToSusHResult mapped Nws error 0x803d0006 to 0x8024401c
2015-07-21 11:08:12:514 420 10a0 WS WARNING: Web service call failed with hr = 8024401c.
2015-07-21 11:08:12:514 420 10a0 WS WARNING: Current service auth scheme='None'.
2015-07-21 11:08:12:514 420 10a0 WS WARNING: Proxy List used: '(null)', Bypass List used: '(null)', Last Proxy used: '(null)', Last auth Schemes used: 'None'.
2015-07-21 11:08:12:514 420 10a0 WS FATAL: OnCallFailure failed with hr=0X8024401C
2015-07-21 11:08:12:514 420 10a0 WS WARNING: NWS retry 2 for transient error 0x8024401C
2015-07-21 11:08:35:545 420 10a0 WS WARNING: Nws Failure: errorCode=0x803d0006
2015-07-21 11:08:35:545 420 10a0 WS WARNING: Original error code: 0x80072ee2
2015-07-21 11:08:35:545 420 10a0 WS WARNING: Could not get error string (errorCode=0x80073b01)
2015-07-21 11:08:35:545 420 10a0 WS WARNING: MapToSusHResult mapped Nws error 0x803d0006 to 0x8024401c
2015-07-21 11:08:35:545 420 10a0 WS WARNING: Web service call failed with hr = 8024401c.
2015-07-21 11:08:35:545 420 10a0 WS WARNING: Current service auth scheme='None'.
2015-07-21 11:08:35:545 420 10a0 WS WARNING: Proxy List used: '(null)', Bypass List used: '(null)', Last Proxy used: '(null)', Last auth Schemes used: 'None'.
Feels like a proxy/firewall issue, but could od with some Expert guidance please?