Big Sur having serious Wi-Fi problem

tommyx98x wrote:

Hi, after updating to Big Sur I'm noticing a weird and serious problem.

When my Mac is connected to the usual Wi-Fi network, everything on the system runs slower(for example, even opening a single folder takes about 20 seconds), and also Safari doesn't load any page (while for example Chrome works perfectly).

Then. I've tried to connect my Mac to another Wi-Fi network and everything works perfectly as it should.

I don't know how the Wi-Fi problem is related to the general performance of the system, but it seems it is, cause as I said, when I turn off Wi-Fi or change the network, everything works.

Now, can someone tell me how to solve this?

Thanks!

Try a SafeBoot https://support.apple.com/en-us/HT201262

Takes noticeable longer to get to the login screen, does a 5-15 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc. Login and test. Reboot and test as caches get rebuilt.