No Connection Error When Accessing Other Users Non-Shared Calendar Outlook 365

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JonMercer-8382 asked Mar 24, '22 KaHoChan-0603 commented Jul 4, '22

No Connection Error When Accessing Other Users Non-Shared Calendar Outlook 365

This is not a shared calendar, and it only happens with one employee. No one else has this issue. If they go into the calendar and add someone else's calendar, it says updating for a bit, and then no connection.

Same issue in Safe Mode, so is not an add-on, and there is nothing from Apple in there, everything is Microsoft.
Works fine in OWA, so not an exchange online or exchange permissions issue.
Renamed OST and NST and had them rebuild. Rather not rename the whole Outlook folder, or rebuild the profile since they have a fair number of other mailboxes that need long passwords.
Ran the full Office Repair
Currently running Microsoft® Outlook® for Microsoft 365 MSO (Version 2202 Build 16.0.14931.20128) 64-bit
Ran SaRA for calendar issues. It came up with an error that said there was a permission issue, but unless Outlook has different permissions than OWA, I wouldn't suspect that is the issue.

office-outlook-itpro

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TerryLee-8960 · Jun 02 at 06:02 PM

Hello, JonMercer-8382, there are several answers to your question on different forum threads, so I will try to help you with helpful references.

The first hint - reason can be expired security certificates which should be renewed. The second - try to check if everything works on a different OS. This way, you'll make sure it is not a Windows glitch.

Updating/repairing Office can also be useful. Here you can find more details on each step of troubleshooting.

I also recommend using a NAKIVO backup for Microsoft 365 to make sure you can always recover after any system issues.

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JonMercer-8382 TerryLee-8960 · Jun 02 at 06:07 PM

Thanks, but none of those are of use. We figured out the issue a week or so ago. See the bottom of this conversation for the full reason, but basically it was a permissions issue in Exchange.

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Answer 1 · 2022-05-13T07:20:59.19Z

HugoLemmens-5526 answered May 13, '22 JonMercer-8382 edited May 24, '22

Hi Jon,
hoping this one will work for you too
Came across one post which suggested to make sure EWS was enabled for that account. (yet another acronym Exchange Web Services).
Found the location where to toggle it on/off
MS 365 Admin portal/user/ and our problem has been resolved.

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JonMercer-8382 · May 24 at 12:30 AM

I am going to accept yours as the answer, because it got me in the right area, and I can't as far as I can tell mark my own comment as the answer. See below for what I ended up doing.

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Answer 2 · 2022-03-25T08:45:34.933Z

FaeryFu-MSFT answered Mar 25, '22 KaHoChan-0603 commented Jul 4, '22

Hi @JonMercer-8382 ,

Welcome to our forum!

I have tried reproduced your scenario, and l get the following screenshot:

To fix it, go to the Send/Recive Tab, click work offline, click work offline again, it prompt for a password, then reconnect again

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
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.

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JonMercer-8382 · Mar 25 at 03:33 PM

Tried that, it showed it went offline, gave it a bit, and clicked on it again, and it eventually showed it was back online, but never asked to put in a password. Calendar still shows as no connection.

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JonMercer-8382 · Mar 28 at 07:35 PM

As an update, I quit out of Teams, went in to Credentials Manager, and removed the password for the Outlook account. Restarted Outlook, and put it in to Offline mode, waited a bit, and then put it back, and it still is not asking for a password. The calendar works fine with shared accounts she has added to Outlook, just not her personal account. It is though possible it is pulling a password from the SSO that is setup with office that it pulls from AD through Azure AD Connect.

It does work fine in OWA though, so it is an issue with Outlook.

Hoping for another option here, but am thinking about going with the scorched earth option, and rename the Outlook folder with all the OST's, and run the Office scrubber, and reinstall Office, and see if rebuilding everything fixes it. Rather not do this, since it takes a while to rebuild their Outlook.

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FaeryFu-MSFT JonMercer-8382 · Mar 30 at 09:40 AM

Hi @JonMercer-8382 ,
Is there any update on this thread?
If the issue resists, you can try to chage the 'default' permission on a single Calendar to 'Reviewer' via right-click on calendar > permission > add. set the permission level to "Reviewer", then check if there will be improvement.

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JonMercer-8382 FaeryFu-MSFT · Mar 30 at 03:16 PM

Just to ask, you did read my thread that you replied to that said as an update?

Where do I right click on calendar?

If I right click on my calendar, I don't have a permissions option.

Is this issue due to some type of permissions setting in the users Outlook, since it works fine in OWA, so it isn't an Exchange permissions or such issue, and it isn't due to a group policy, since it only happens to one person.

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Answer 3 · 2022-04-13T15:45:07.687Z

JonMercer-8382 answered Apr 13, '22 JonMercer-8382 edited Apr 13, '22

As an update, I scorched earth Office 365 by running the office scrubber and renamed the Outlook folder. Rebooted, reinstalled office and still has the same issue. I noticed that it rebuilt everything since all shared email boxes are stored in the OST.

They can access the calendar of shared accounts, but not personal accounts in Outlook, but still can access them in OWA. Are there any other thoughts on this?

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Answer 4 · 2022-05-12T08:00:43.667Z

HugoLemmens-5526 answered May 12, '22 JonMercer-8382 commented May 12, '22

Exactly same problem here, appearing out of nowhere with one single user.
User has a MS 365 Bus Premium licence and runs on Azure Virtual Desktop
Tried all of the above - no improvement.
- OWA works fine
- toggling offline back and forth - no change
- turning cache off - no change

Created same mail profile for that user on a different PC - outside of their AVD environment in Outlook running of a fat client.
Exactly same issue.
Tried to open properties of the non-shared calendar

Hoping someone will find a solution...

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JonMercer-8382 · May 12 at 03:29 PM

Hoping so also. We ended up having to have the user who they were trying to access their calendar give permission to access the calendar, which they didn't have to do with anyone else.

It is irritating when the person asking a question stops replying, but more so when someone from Microsoft gives a basic answer, and then stops replying when it doesn't work, or they ask you to do something, you ask how to do it, and they don't reply. @FaeryFu-MSFT

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Answer 5 · 2022-05-13T15:23:29.357Z

JonMercer-8382 answered May 13, '22 JonMercer-8382 edited May 13, '22

Hugo, that is a good find, theirs for some reason was disabled. I am guessing since she is an older employee, that way before my time, they were turning off everything except for two or three things in there, because all recent employee's I looked at, everything in there is enabled.

Unless it is a propagation thing, it still didn't work, but they also have everything except the first two disabled, so might require multiple things of the list that is left.

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Answer 6 · 2022-05-23T17:55:13.74Z

JonMercer-8382 answered May 23, '22 JonMercer-8382 commented May 27, '22

Looks like it wasn't a propagation issue, since with just Outlook on the web, Outlook Desktop (MAPI), and Exchange web service enabled, it still was giving the same error.

I enabled the rest of them, and will see what happens. Most everyone else had them turned on.

[EDIT]

It was somewhere between one or all three of the last three. After enabling all three of them, and giving it a bit, they now can see other people's calendars. I am not going to mess with it since it works, so if others have this issue, and want to narrow down which it is, let us know here if you could.

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HugoLemmens-5526 · May 27 at 07:43 AM

Well, if it ain't broke - don't fix it I would recommend. For what it is worth, my bets would be on de Exchange ActiveSync enabling. Glad at the end we found a solution.

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JonMercer-8382 HugoLemmens-5526 · May 27 at 03:19 PM

Exchange ActiveSync is my guess also.

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