Outlook 365 app error 1001 on RDS environment ( FSLogix)

Anonymous
2023-07-07T08:25:49+00:00

Hello,

We encounter an issue with M365 apps (Outlook, Work, Excel) on a specific environment ( Remote Desktop Service)

Sometime, when an user open his application (Outlook for instance) on a RDS, an authentification pop and ask for credentials. If the user enter his credentials, he encounter a 1001 error.

« We encountered an issue [1001] »

https://learn-attachment.microsoft.com/api/attachments/5a947921-955a-4688-ad93-acc305bf77c6?platform=QnA

We already try some step to resolve the issue that help in some case but not all the case, and not defintely for a same user ( Issue occur again) :

  • Clear folder C:\Users*yourusername*\AppData\Local\Microsoft\OneAuth and  C:\Users*yourusername*\AppData\Local\Microsoft\IdentityCache
  • Move the user from 1 TSE server to an other TSE)e
  • Clear FSlogix User profil ( The specific one link to FSLogix Office 365 Container technology )

The main issue is that the error can occur again few day laterfor the same user.

We also generate some log from M365 apps client during the signin process with this link to help : https://learn.microsoft.com/en-us/office/troubleshoot/diagnostic-logs/how-to-enable-office-365-proplus-uls-logging

In the log I find the reference to the 1001 error but the log is a bit complex to understand or analyse.

0xa3e4	Microsoft Outlook	Identity Authentication Client	48cmb	Monitorable	OneAuth log {"Message": "[MSAL:0004]\tERROR  \tErrorInternalImpl:134\tCreated an error: 58tm1, StatusInternal::Unexpected, InternalEvent::None, Error Code 2147942403, Context '(pii)'", "IsError": true}	

07/07/2023 09:04:21.440	OUTLOOK (0x8b30)	0xa3e4	Microsoft Outlook	Identity Authentication Client	48cmb	Monitorable	OneAuth log {"Message": "[OneAuth:Error:58tm1:db6d7d6e-a557-4465-a968-a874c5e456e5] (Code:1001) An unexpected error occurred.", "IsError": true}	

07/07/2023 09:04:21.440	OUTLOOK (0x8b30)	0xa3e4	Microsoft Outlook	Identity Authentication Client	48cmb	Monitorable	OneAuth log {"Message": "[OneAuth:Error:9vdpp:db6d7d6e-a557-4465-a968-a874c5e456e5] Unexpected error code: 1001", "IsError": true}

Environment :

  • Microsoft FSLogix version : 2.9.7654.46150
  • Office version : version 2305 build 16501.20228
  • OS version : Windows Server 2019 Standard 1809 build 17763.4499
Outlook | Windows | Classic Outlook for Windows | For home

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  1. Anonymous
    2023-09-19T08:37:22+00:00

    Hi, We have the same issue here. Using multiple RDS servers with FSlogix profiles. Deleting the FSlogix profiles from the affected user(s) sometimes helps for a few days, sometimes the problem is getting back right after creating a new profile. It's not related to a specific server and not related to specific users. We think it has something to do with FSlogix and/or the MFA check that Office checks in background or something like this. Sometimes a user is working for a few hours and does not have any problems and then just out of nothing Outlook does not synchonize and shows "need password" at the bottom of the Outlook screen. When user wants to login, which normally isn't necessary, the error 1001 is showing. When getting the error 1001 it's not possible to login and profile needs to be deleted. When lucky you can work for period of time and last a few days or not, its hopeless.

    All the other workarounds mentioned on othet MS forums or Reddit such as deleting AADbroker, Identycache and OneAuth folders etc. does not work. Deleting FSlogix profile is the only thing that works for us sometimes.

    @Microsoft: When are you guys going to do something about it...?

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  2. Anonymous
    2023-09-19T08:49:43+00:00

    I feel like nobody from Microsoft nor fslogix cares about this, yet many users are having these issue's. Why is this taking so long?

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  3. Anonymous
    2023-09-19T10:02:30+00:00

    Zaltbommel5301

    The issue isn't specific to FSLogix unfortunately. We use regular User Profile Disks and are having the exact same issues you are describing.

    In my opinion this is 100% a problem that Microsoft need to resolve. I am hoping that at some point they will at least acknowledge the issue. Then maybe a fix will follow.

    I've not found any patterns with users or RDS session hosts either. It seems completely random. We are keeping a list of users who have had the problem and some do have it more than others. Some users haven't had the problem at all.

    I'm in contact with a guy that works at an MSP and he has multiple customers with the exact same problem.

    As with you we can have a user working fine all day with Outlook and then out of nothing it stops working. And we have users that we fix the problem for, then the next morning they have the problem again.

    To briefly summarise the steps we take when a user has the problem:

    Note: These steps don't fix the problem for good for the user. It nearly always comes back at some point.

    1. Close all M365 apps.
    2. Delete the Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy from C:\Users<username>\AppData\Local\Packages
    3. Sign out of Edge.
    4. Temporarily set Internet Explorer as the default web browser.
    5. Re-open Outlook and check if it's working again. If it is, set Edge back as the default web browser and hand back to user.
    6. If Outlook still isn't playing ball, go through all of the steps on this site: https://www.matrix7.com.au/microsoft-365/o365-outlook-logon-error-something-went-wrong-1001/
    7. If Outlook still won't work, try all of the above steps again, and then if still no good, nuke the users' RDS profile and set it up from scratch. Note - this doesn't usually make the problem go away for good.

    Shane Vandewalle

    As above I'm hoping that with more people posting/replying to forum threads about the issue Microsoft will eventually acknowledge the problem and hopefully come up with a fix.

    It's definitely a Microsoft problem though.

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  4. Anonymous
    2023-09-19T10:23:59+00:00

    Interesting to know that this isn't a fslogix only problem but rather a terminal server / M365 problem. Let's indeed hope they finally start fixing things instead of focussing on introducing new features...

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  5. Anonymous
    2023-09-19T11:46:12+00:00

    Add another +1 for this exact issue

    Server 2019 - 4x RDS Session Hosts

    FSLogix

    Everything that has already been said in these comments. No concrete, long-term fix found. Unhappy clients when we regularly have to bounce them around RDSH until one will connect but maybe for a day or two. Re-doing the FSLogix disk seems to last longer.

    In a company of 65 we've maybe had thisa dozen times this year.

    Sometimes it manifests itself in only "Need Password" in Outlook with no prompt but our temporary fix has been the same - New FSLogix disk

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