no network after updates urgent

After 3 ms updates & reboot laptop I cant connect anymore to my shared files
on my pc.
panic.
Laptop is connected to router by wifi and has internet access.
PC is connected to router by cable and has internet access.

When I click on the other computer under network, I get an error: could not
be found.
From other computer: same result.
I have util wifi-guard and it does find the other pc.
Why cant I go in there with windows file explorer normally?

Restoring image from before the updates: problem solved.

What to do?
Do I skip the latest updates?


regards,

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