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Exchange16/ Outlook16 - client type MoMT exceeded the maximum of 32 objects of type Session.

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    Hi All,

    I was hoping to get some assistance on this issue I'm experiencing. 

    Our receptionist continually disconnects due to exceeding the 32 connection limit and have already applied the following policy changes and applied it to her mailbox:

    New-ThrottlingPolicy -Name MaxConnect -RCAMAXConcurrency Unlimited

     

    Set-Mailbox -identity mbarton -throttlingpolicy MaxConnect

    I can see:

    [PS] C:\Windows\system32>Get-Mailbox -Identity xxxxxxx | select throttlingpolicy

     

    ThrottlingPolicy

    ----------------

    MaxConnect

    Her client ran beautifully all week until today! Same policy applied, nothing changed. Any thoughts on how I can prevent this?

    Any help is greatly appreciated!!

    Aaron

    Friday, July 13, 2018 2:38 PM
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    Hi,

    We may also need to add the following registry key:

    Navigate to the location:
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIS\ParametersSystem 

    Then add a DWORD 32 key named "Maximum Allowed Sessions Per User" and set the value with Decimal 500.

    Then restart the Microsoft Exchange Information Store service to make the change take effect.

    Meanwhile, if you are using cached mode in Outlook, please uncheck the "download shared folders" option under account settings -> change accounts -> more settings -> advanced.


    Hope it helps.

    Regards,

    Manu Meng

    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

    Monday, July 16, 2018 6:52 AM
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    Hi,

    It has been a long time since you made the last post on this thread. If you could get any help from the above posts, please be free to mark them as answers,  it will be easy for other community members to find the useful one/ones.

    Thanks for your understandings!

    Regards,

    Manu Meng

    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

    • Marked as answer by Dubl-A Thursday, August 2, 2018 2:20 PM
    Thursday, July 26, 2018 1:43 PM
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    Hi,

    We may also need to add the following registry key:

    Navigate to the location:
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIS\ParametersSystem 

    Then add a DWORD 32 key named "Maximum Allowed Sessions Per User" and set the value with Decimal 500.

    Then restart the Microsoft Exchange Information Store service to make the change take effect.

    Meanwhile, if you are using cached mode in Outlook, please uncheck the "download shared folders" option under account settings -> change accounts -> more settings -> advanced.


    Hope it helps.

    Regards,

    Manu Meng

    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

    Monday, July 16, 2018 6:52 AM
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    Hi Manu,

    Thank you for the response, I greatly appreciate it! I'll update these settings and report back. Do you think it makes a difference in the Registry vs the Admin Templates?

    Monday, July 16, 2018 2:19 PM
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    Hi Manu,

    Thank you for the response, I greatly appreciate it! I'll update these settings and report back. Do you think it makes a difference in the Registry vs the Admin Templates?

    Cannot find a GPO to control this, the registry method is also a server side change.

    Look forward to your good news!

    Regards,

    Manu Meng

    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

    Tuesday, July 17, 2018 2:11 AM
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    Any updates by now?

    Regards,

    Manu Meng

    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

    Thursday, July 19, 2018 2:02 AM
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    Moderator
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    Hi,

    It has been a long time since you made the last post on this thread. If you could get any help from the above posts, please be free to mark them as answers,  it will be easy for other community members to find the useful one/ones.

    Thanks for your understandings!

    Regards,

    Manu Meng

    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

    • Marked as answer by Dubl-A Thursday, August 2, 2018 2:20 PM
    Thursday, July 26, 2018 1:43 PM
    |
    Moderator