I'm really glad you have managed to find a successful solution to your external drive problems. It really is a minefield and nothing is simple anymore. I've yet to find out if this new drive will sort my problems. My Mac is not even old - it's a 2019 model! These older white Macs lasted far longer than the newer ones. Apple is not the company it once was and it will lose its faithful customers once they get sickened with the repeated failures of the hardware and software.So far, after two weeks, Time Machine v1.3 on the WD drive is working normally. The lack of a wi-fi hub as the original Time Capsule had, is not a problem.