Is KB5026372 causing an issue with VPN connections?

Anonymous

We have a number of users that have had recent updates of KB5026372 and this has seemingly stopped their VPNs from connecting (loses connection instantly as soon as VPN connected, no more internet access), we use L2TP/IPsec with pre shared key. We have troubleshooted this with the network team, but nothing has changed and they are confident its not an issue caused by us. I have uninstalled KB5026372 on my machine, which had the issue also and then VPN works. Issue we have here is that our updates are handled automatically and it will pull down the updates again and install. Only solution is to pause updates for a set period of time in the hope that this gets resolved in a future update.

Has anyone else reported these issues? I have seen a few articles online regarding this and slowness of some VPNs after the update (which i had before it eventually just stopped working), but no solution other than uninstall.

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Anonymous

Hello! My name is Mostafa, and I will try my best to assist you with this so that you find a satisfactory solution.

I’m sorry that you are experiencing this issue. Yes, many users have been reports of VPN connection issues after installing KB5026372. The update is causing problems with VPN connections, especially L2TP/IPSec VPNs.

If your updates are handled automatically, and it will pull down the updates again and install, you can pause updates for a set period in the hope that this gets resolved in a future update.

Go to Settings > Update & Security > Windows Update to pause Windows Update. You can click Pause updates for seven days to block updates for a week; extending this time by clicking again later is possible.

Review the below article.

https://www.windowslatest.com/2023/05/13/window...

If the above steps do not help, reach out to me, and I will be happy to help and try my best to resolve your issue. Thank you.

Best,

Mostafa

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51 additional answers

Anonymous

2023-06-07T17:41:29+00:00

Is there a permanent fix for this issue yet? Going on 4 weeks...I can't continue to pause all updates for my organization.
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Anonymous

2023-06-27T08:34:29+00:00

If anyone is still looking (i guess quite a few looking at the comments and MS still haven't fixed it themselves). I found something that worked for me in this post.

How to fix KB 5026372 VPN Issues - Microsoft Q&A

Basically to enable the service "Routing and Remote Access"

I am yet to try this on my other users, but it worked on my machine. Hopefully it works for you.
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Anonymous

2023-06-23T00:48:10+00:00

I found this today (see How to fix KB 5026372 VPN Issues - Microsoft Q&A) and on enabling "Routing and Remote Access Service" on my Windows 11 device, it has resolved the issue for me.
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Anonymous

2023-06-13T08:25:46+00:00

This is still a huge problem, @Microsoft please hurry up and fixe this uppdate!
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4 people found this answer helpful.

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