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Sync Failed: WSUS Server Not Configured. But It IS!

sccmsoftware-updateswsus11 replies 路 329 views 路 started
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  1. Tariq Lopez
    @tlopez

    inherited a ConfigMgr environment behind a proxy, the previous admin warned me that WSUS is 'fragile', now the the console shows teh last sync as falied:

    Log viewer - wsyncmgr.log

    Log viewer - wsyncmgr.log
Starting Sync
Full sync required due to changes in main WSUS server location
Synchronizing WSUS server WSUS01 ...
Synchronizing WSUS server WSUS01 ...
sync: Starting WSUS synchronization
Sync failed: UssCommunicationError: WebException: The request
  failed with HTTP status 503: Service Unavailable.
STATMSG: ID=6703 SEV=E LEV=M SOURCE="SMS Server"
Sync failed. Will retry in 60 minutes
Setting sync alert to active state on site PS1
Sync time: 0d00h12m41s
Sync failed: UssCommunicationError: WebException: HTTP 503

    Ive restarted teh server. It worked once, then failed again. Id love to understand whats going on rather than reboot every week.

    Im told this server has never had any WSUS maintenance done. I dont even know what maintenance means in this context. Id like to fix the immediate problem and then put something sustainable in place.

    12
  2. Hana Moreau
    @hanam494

    Is the WsusPool application pool runinng, and when was it last stopped??

    12 1 helpful
  5. Sara
    @sara.vos

    Read wsyncmgr.log (sync process) and WCM.log (SUP configuration) on the site server, and WSUSCtrl.log for WSUS health... on the WSUS server, SoftwareDistribution.log in the WSUS install fodler shows the upstream sync errors in detail.

    5 0 helpful
  6. Hana
    @lateowl

    if WCM.log says it can't connect, verify teh SUP role's WSUS port settings (8530/8531) match the WSUS installation, and that the site server can reach teh WSUS API. A changed certificate on 8531 can also break teh connection.

    lol

    14 0 helpful
  7. Ada Haddad
    @stackranger

    hmmm any update on this?. pro tip: write down what u change... i didnt and had to redo wsus from scratch ?

    1 2 helpful
  8. Ada Haddad
    @stackranger

    WOWWW ok update: did what @hanam494 said and its fine now, lol this thread is gold

    0 5 helpful
  9. Theo P.
    @theo.park

    @dima.park nah thats not it, sccm has nothing to do with it

    1 5 helpful
  10. Freya Holm
    @fholm

    ok this thread just saved my weekend. @tlopez what did u end up doing in teh end

    1 1 helpful
  11. Dima Park
    @dima.park

    ok so check the IIS application pool WsusPool. when it runs out of memory it stops, and syncs fail. increase the Private Memory Limit (many admins set it to several GB or 0) and raise teh queue length, then recycle the pool. fingers crossed 馃

    2 0 helpful
  12. Eamon
    @vector_fox510

    behind a proxy, configure it on the SUP component properties in ConfigMgr, not just in WSUS... the site systems proxy settings need to allow teh update source URLs; a blocked TLS inspection proxy breaks teh sync too.

    0 1 helpful

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