Dear August(Schule),
I'm Dyari. Thanks for reaching out. I will be happy to assist you in this regard.
There are many users reported and faced the same issue recently which looks like there is a bug in the current update of W11. Therefore, it would be best to submit feedback, hopefully, Microsoft fix this issue soon. Appreciate your patience.
https://answers.microsoft.com/en-us/insider/for...
Meanwhile, you can try the steps provided in the link below:
https://www.guidingtech.com/top-ways-to-fix-sni...
Also, you can perform system repair (if you want to):
https://www.yourwindowsguide.com/2021/08/repair...
Please let me know if you need further assistance and keep me updated.
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