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WillT237's avatar
WillT237
Copper Contributor
Mar 04, 2021

Iphones cannot connect via ActiveSync since 2016 CU19 and KB5000871

Hi, have upgraded a client 2016 server to CU19 and installed patch for KB500087 and since then all iphones can no longer connect via activesync using the native mail client. Outlook client connects, ...
CU19
Daniel771865's avatar
Daniel771865
Copper Contributor
Apr 15, 2021
Hi folks,

maybe this help: https://docs.microsoft.com/en-US/exchange/troubleshoot/client-connectivity/event-1053-activesync-not...

regards
Daniel
  • Daniel771865's avatar
    Daniel771865
    Copper Contributor
    Apr 15, 2021
    Hi Will,

    i had a similar issue, after installing CU20 and KB5001779 it works fine.

    regards
    Daniel

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