errors after installing WSUS3sp1

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Hello
I don't know what happened. I've installed sp 1 to wsus3 an my PC
stopped report to WSUS server.
Please help me because I have no experience in solving WSUS problems.
Please if I need do something manually tell my how to do it. I've read
that it can be any problem with IIS. But I don't know how it check and
fix. It is part of log:

008-04-04 16:14:48:386 1056 6c4 AU #############
2008-04-04 16:14:48:386 1056 6c4 AU ## START ## AU: Search for
updates
2008-04-04 16:14:48:386 1056 6c4 AU #########
2008-04-04 16:14:48:386 1056 6c4 AU <<## SUBMITTED ## AU: Search for
updates [CallId = {37B77CCE-78B2-40A9-8C26-E6C8A7E6B6DA}]
2008-04-04 16:14:48:402 1056 190 Agent *************
2008-04-04 16:14:48:402 1056 190 Agent ** START ** Agent: Finding
updates [CallerId = AutomaticUpdates]
2008-04-04 16:14:48:402 1056 190 Agent *********
2008-04-04 16:14:48:402 1056 190 Agent * Online = Yes; Ignore
download priority = No
2008-04-04 16:14:48:402 1056 190 Agent * Criteria = "IsHidden=0 and
IsInstalled=0 and DeploymentAction='Installation' and IsAssigned=1 or
IsHidden=0 and IsPresent=1 and DeploymentAction='Uninstallation' and
IsAssigned=1 or IsHidden=0 and IsInstalled=1 and
DeploymentAction='Installation' and IsAssigned=1 and RebootRequired=1
or IsHidden=0 and IsInstalled=0 and DeploymentAction='Uninstallation'
and IsAssigned=1 and RebootRequired=1"
2008-04-04 16:14:48:402 1056 190 Agent * ServiceID = {3DA21691-
E39D-4DA6-8A4B-B43877BCB1B7}
2008-04-04 16:14:59:608 1056 190 Misc WARNING: WinHttp:
SendRequestToServerForFileInformation failed with 0x80190194
2008-04-04 16:14:59:608 1056 190 Misc WARNING: WinHttp:
ShouldFileBeDownloaded failed with 0x80190194
2008-04-04 16:14:59:608 1056 190 Misc WARNING: DownloadFileInternal
failed for http://pl02s105/selfupdate/wuident.cab: error 0x80190194
2008-04-04 16:14:59:608 1056 190 Setup FATAL: IsUpdateRequired failed
with error 0x80244019
2008-04-04 16:14:59:624 1056 190 Setup WARNING: SelfUpdate: Default
Service: IsUpdateRequired failed: 0x80244019
2008-04-04 16:14:59:624 1056 190 Setup WARNING: SelfUpdate: Default
Service: IsUpdateRequired failed, error = 0x80244019
2008-04-04 16:14:59:624 1056 190 Agent * WARNING: Skipping scan,
self-update check returned 0x80244019
2008-04-04 16:15:00:178 1056 190 Agent * WARNING: Exit code =
0x80244019
2008-04-04 16:15:00:178 1056 190 Agent *********
2008-04-04 16:15:00:178 1056 190 Agent ** END ** Agent: Finding
updates [CallerId = AutomaticUpdates]
2008-04-04 16:15:00:178 1056 190 Agent *************
2008-04-04 16:15:00:178 1056 190 Agent WARNING: WU client failed
Searching for update with error 0x80244019
2008-04-04 16:15:00:178 1056 384 AU >>## RESUMED ## AU: Search for
updates [CallId = {37B77CCE-78B2-40A9-8C26-E6C8A7E6B6DA}]
2008-04-04 16:15:00:178 1056 384 AU # WARNING: Search callback
failed, result = 0x80244019
2008-04-04 16:15:00:178 1056 384 AU # WARNING: Failed to find
updates with error code 80244019
2008-04-04 16:15:00:178 1056 384 AU #########
2008-04-04 16:15:00:178 1056 384 AU ## END ## AU: Search for
updates [CallId = {37B77CCE-78B2-40A9-8C26-E6C8A7E6B6DA}]
2008-04-04 16:15:00:178 1056 384 AU #############

Thanks for help !!!
.

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