Do you run a home network? We have had one for years and never had any setup difficulties - until now. Harvey decided that his ageing MacBook Air was not agile enough to be the main man, so to speak, so he laid plans to replace it with my old 13in MacBook Pro, which had an SSD fitted. After some time in process, the plans became a struggle, then the struggle was replaced by a lot of research. It seems there is a (groan) known problem with Catalina, which the MBP was running, when it comes to networks. Apple have done those things which they ought not to have done and made it pretty impossible to use Catalina for our purposes and we are not alone in feeling annoyed at them.
Next stage, Harvey is replacing Catalina on the MBP with the Air¡¯s Mojave installation. Watch this space! I have Catalina on my 16in MBP but still have Mojave on my nearly ten-year-old 27in iMac.
I do hope this works, because I am accumulating scans and downloads that need to go onto what we call ¡°Primary¡±, which will hopefully be the MBP once it¡¯s been converted from its heresy! Oh I¡¯ve just remembered: I have a thumb drive to put these docs on!
Best,
Susan