latest update won't download
The latest update for my Mac won't download. This has been going on for awhile. It keeps telling me to check my internet but my internet and wi-fi are fine and working. I have Xfinity wi-fi and it is working fine and has been. I can't change that modem because that is their system and equipment and so I can't just arbitrarily go and use something different. What is happening?
MacBook Air 13″, macOS 11.0