Hi SHStefan,
Based on your description, I want to confirm that have you made any changes before the problem occurred? Please make sure your network adapter works properly.
First of all, let’s try to perform a clean boot and check the result.
How to perform a clean boot in Windows:
https://support.microsoft.com/en-gb/kb/929135
The build-in troubleshooting may be a good idea, please try it.
Navigate to Control Panel>Troubleshooting>System and Security>Search and Indexing
Best Regards,
Tao
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