3 pcs, win7 (32 bit), Win 7 (64 bit) & mac osx Mountain Lion - all on 16.0.2 All of a sudden sync stopped working, no errors nothing! I added an extension on one pc (mac) which did not get replicated on the others thought I simple, unlink 2 that didn't update then on master one then in sync options on mac "replace all other devices with this computers data" thinking this would force the central sync to be the same as the mac - wrong! on mac add-ons screen it shows them and removed so did "undo" on them all as the whole lot would have been wiped! Tried generating another key on the mac and entered it on another, still empty list of addons! Now completely stumped, no idea what to do, hence my question if sync is broke outside my network?