Share via

Windows 2k19 WSUS synchronization failed

Ricardo Ito 191 Reputation points
2021-02-23T20:44:26.567+00:00

Hello guys!
I have one Upstream e 4 downstream WSUS Servers.
One of downstream server is facing a synchronization problem as print at attachment. Could you please help me?71266-wsus.png

Windows for business | Windows Server | User experience | Other
0 comments No comments

Answer accepted by question author

Amandayou-MSFT 11,166 Reputation points
2021-02-24T02:28:07.873+00:00

Hi @Ricardo Ito ,

Increase timeout on IIS server (both downstream and upstream end) by editing web.config maxRequestLengty. It defaults to 2048 or so, we could bump it up to 8192. Please refer to following screenshot:
71352-224.png

Please run WSUS cleanup tasks on the downstream server, then on upstream server. Kindly clean out superseded updates to cut down on the amount of data that has to be synced.

Besides, we could try downstream server to obtain content directly from Microsoft. This way is to check if there is connection wrong with downstream and upstream servers.


If the response is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Was this answer helpful?

0 comments No comments

2 additional answers

Sort by: Most helpful
  1. Ricardo Ito 191 Reputation points
    2021-02-26T16:06:47.757+00:00

    Hi Amanda!
    I followed your sugestions and worked!
    After configured downstream to obtain content directly from Microsoft and then reconfigured to be replica again the synchronization worked!

    Was this answer helpful?

    0 comments No comments

  2. Ricardo Ito 191 Reputation points
    2021-02-24T21:33:33.34+00:00

    Hi Amanda, thank you for your advices. I´m running it now.

    A adicional informartion...
    This is my environment:

    Upstream Servers (1 Front End and 1 Back end (SQL Server express))
    4 Downstream

    More than 2k devices

    Is there a limit for this environment?

    Was this answer helpful?


Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.