Tag Archives: issue

Microsoft 365/Exchange Online outage from March 1st, 2025 still continues on 3/3/2025?

Posted on 2025-03-03 by guenni

[German]On March 1, 2025, Microsoft users of MS 365 worldwide were confronted with a disruption to services from around 9:3o p.m. (CET). The disruption was reported as resolved a few hours later. Over the weekend, however, I saw indications that … Continue reading →

Posted in Cloud, issue | Tagged , | 1 Comment
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Citrix Lizenz Server 11.17.2 Build 51000 with Time Bomb

Posted on 2025-03-03 by guenni

[German]There seems to be an unpleasant surprise for Citrix Service Providers in the License Manager. There are suddenly no more licenses available for some providers. The cause is probably a "time bomb" in Citrix License Server 11.17.2 Build 51000, in … Continue reading →

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WhatsApp down (Feb. 28, 2025)

Posted on 2025-02-28 by guenni

[German]Brief information for WhatsApp users among the readership (or to pass on to these users). The meta service seems to be experiencing a major outage. Advertising

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Outlook Classic: Microsoft fixes drag & drop bug

Posted on 2025-02-28 by guenni

[German]Microsoft has published a support article stating that a bug in the drag & drop functionality of Outlook Classic has been fixed. The bug crept in via the January 2025 update and probably occurred under Windows 11 24H2. Advertising

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Windows 11 24H2: Performance issues with Intel Core Ultra 200 CPUs – Feb. 2025 update with side effects

Posted on 2025-02-28 by guenni

[German]The next blog reader with performance problems under Windows 11 24H2 has reached me. The reader set up a system with an Intel Core Ultra 9 285K CPU on an ASRock Z890 Pro RS mainboard and installed Windows 11 24H2. … Continue reading →

Posted in devices, issue, Windows | Tagged , , | Leave a comment
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Why ISL Online: Critical factors when choosing a remote desktop solution

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Windows 11 24H2: Update KB5051987 fails with installation error 0x800F0838

Posted on 2025-02-27 by guenni

[German]I have come across a report that the February 2025 update KB5051987 can cause problems during installation. The update cannot be installed in Windows 11 24H2 and aborts with the error code 0x800F0838. The cause is probably a missing Servicing … Continue reading →

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Microsoft RDS activation fails – Clearinghouse server not reachable?

Posted on 2025-02-26 by guenni

[German]A quick question for the administrators among the blog readership who are responsible for Remote Desktop Server. A reader has just informed me by email that there have been problems with RDS activation since Friday, February 21, 2025. The cause … Continue reading →

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Exchange 2019 CU15 and updating server certificates

Posted on 2025-02-23 by guenni

[German]Two weeks ago, Microsoft released CU15 for its Exchange Server 2019. A blog reader contacted me yesterday because he came across a nice change during testing. Server certificates can now (again) be updated directly via GUI – the recourse to … Continue reading →

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Windows 11 24H2: System freezes and crashed due to Vmmem ressource consumption

Posted on 2025-02-21 by guenni

[German]Is there a problem with resource consumption by the Virtual Machine Memory Manager (Vmmemcm) in Windows 11 24H2, which then leads to the system freezing? I have had reports of this since December 2024 – and there seems to be … Continue reading →

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WSUS problem: Clients have not logged in since 12.2.2025

Posted on 2025-02-19 by guenni

[German]A German blog reader contacted me on February 13, 2025 because he was experiencing problems with his WSUS. The Windows clients had not reported to WSUS since February 12, 2025. This could be corrected by reading back the backup. But … Continue reading →

Posted in issue, Windows | Tagged , , | 2 Comments