My EverSync has been working just fine for quite some time. I synced my two computers a couple hours ago. The I went to Sync again just now and I get Sync Failed.
The only thing I can think of is ... Someone showed me a procedure to get rid of the warning bar I'm getting every time I open Google with regard to stopping support of Vista and soon won't be receiving updates. I performed that and it worked. The next time I opened Chrome I didn't have that annoyance. But then when I went to sync it didn't work and my syn icon was grayed out. So I went back and undid the change to get rid of that bar. When I opened Chrome again my sync icon was again active, I went to use it and still received sync failed.
Customer support service by UserEcho