Trying to update from Mojave to Catalina. System starts checking for updates and after a long time it gives a message that it is "timed out". iMac 21.5, late 2013, running Mojave.
I am trying to update iMac 21.5, late 2013, from Mojave’s to Catalina. The System Preference starts to check for updates. After a fairly long time it gives a message that checking updates has timed out. I have also tried to download Catalina from App Store page but that also opens the “Checking for Updates” window.
Thanking for any support in advance.
iMac 21.5″, macOS 10.14
