Forum Discussion

Brass Contributor

Aug 11, 2022

Solved

KB5016623 Issues with AAD App Proxy

Hello We have encountered some issues with KB5016623. The is causing the server, Win 2019 server running IIS, to crash after 5 to 10 minutes and to be unable to use AAD App Proxy connections that ar...

azure ad application proxy

hawkboy
Aug 12, 2022
Andrew Emmett
Hi Andrew,

We had the same issue today. Uninstalling KB016623 resolved it as well. I've logged it with Microsoft. Will report back when they respond.

Glen.

freddy104

Copper Contributor

Oct 09, 2022

Have you or Microsoft come up with an approach to mitigate the issue when it happens?

Kapil_Madaan

Copper Contributor

Oct 31, 2022

freddy104 MS has advised not to patch the server until fix is released. They proposed a registry change, however it did not work.

freddy104
Copper Contributor
Nov 10, 2022
Word from Microsoft is that this issue is fixed in the November 8 Patch Tuesday patches. Can anyone confirm if they have tested the 11/8 patches to confirm the issue is resolved?
- Rowley320
  Copper Contributor
  Nov 11, 2022
  Installed Nov patch for Server 2016 (kb5019964) and appears to have resoled the issue.
  - az_app
    Copper Contributor
    Nov 11, 2022
    Similar patch for Server 2019 is KB5019966:
    https://support.microsoft.com/en-gb/topic/november-8-2022-kb5019966-os-build-17763-3650-b09dad62-5cd7-47cd-992f-b7d01f2956c1
freddy104
Copper Contributor
Nov 10, 2022
Word from Microsoft is that this issue is fixed in the November 8 Patch Tuesday patches. Can anyone confirm if they have tested the 11/8 patches to confirm the issue is resolved?