Hey,
I have my X1 paired over BT with my phone but when I try to connect to my WiFi, I get an error message saying 'Unable to Connect WiFi. Error Code 0500'. When I re-type my WiFi password, the watch says it's connected but then when I check for updates (or do a WiFi sync), same message crops up. I am on v12.70 and did not have an issue like this previously. I have used WiFi connection to carry out an update to 12.70, so it's a bit odd.