Waiting for iPhone 5 wrote:
I'm trying to check for an update (MacBook Pro macOS Catalina) and it says "last check three days ago" and doesn't refresh date. I know Im using latest update but now when I check for update last date doesn't change. Do you know how to fix it, thanks.
To trouble shoot further you can:
—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.
In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.
This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.