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Azure VPN Black Window

Jordan Wagner 0 Reputation points
2026-04-29T13:35:18.74+00:00

Hello,

I use Azure VPN for work on a Windows 11 computer. Recently it started to freeze and if I try to kill the task and re-open it, I get a black window.

I have tried everything. Uninstalling, deleting the app data folder (C:\Users...\AppData\Local\Packages\Microsoft.AzureVpn_...), reinstalling... I even went nuclear and got a brand new computer with a fresh windows install, and I have the same issue.

None of my co-workers seem to have this problem. The only way I can fix it is by restarting my device but that is really inconvenient since this happens 2-3 times a day,

I notice this happen when my wifi router drops connection for a bit while I am connected to the VPN on my computer. I also notice it sometimes when I come back to my computer and it was idle/sleep,

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Thanks,

Jordan

<Moved from: Windows for home | Windows 11 | Performance and system failures>

Azure Virtual Network
Azure Virtual Network

An Azure networking service that is used to provision private networks and optionally to connect to on-premises datacenters.

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  1. Alex Burlachenko 20,665 Reputation points MVP Volunteer Moderator
    2026-04-30T07:27:47.4633333+00:00

    hello Jordan Wagner & thx for join me here at Q&A portal,

    sooo firstly quick answ app UI is hanging after network resume, try WebView2/GPU update and restart RasMan instead of reboot. And sounds like Azure VPN Client UI process gets stuck after network loss/sleep, not a VPN gateway issue. fresh PC having same issue points to user profile/config, VPN package version, graphics/WebView dependency, or the Wi-Fi drop/sleep path.

    first thing I would try is disable sleep for Wi-Fi/network adapter in Device Manager and power plan because the trigger is connection drop or resume from idle. then update/reinstall Microsoft Edge WebView2 Runtime and GPU driver coz black window in modern Windows apps is often WebView/rendering stuck, not the app logic. when it happens, dont only kill Azure VPN Client UI, also stop/reset the VPN platform service with admin PowerShell: Get-Service *vpn* | Where-Object {$_.Name -like "*Ras*" -or $_.DisplayName -like "*VPN*"} | Restart-Service -Force, or just restart RasMan with Restart-Service RasMan -Force. if that clears it without reboot, it confirms stuck Windows VPN stack. also check Event Viewer under Application and Microsoft-Windows-RasClient logs around the freeze. practical workaround is to disconnect VPN before sleep or unstable Wi-Fi, and set Wi-Fi adapter power saving off. if it still happens 2-3x daily after WebView2/GPU/RasMan checks, open ticket with Microsoft and include app version + event logs.

    rgds, Alex

    & 

    pls if my answer helps pls accept it.

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