Time Machine Keeps asking me to create a new back up
Hi,
I have been using Time Machine for many years and currently back up to a Synology NAS. About once every 6 months Time Machine says for the reliability of the back up I should let it create a brand new back up. Takes ages but no problem....
Now its asking me the same thing every 2 days. The exact warning is below. Any ideas what's going wrong and how to fix it?