I was having problems with my band connecting to Health page on my phone and found this page for re-setting the Band 2.....got mine going again.....hope it helps you
https://forums.windowscentral.com/e...Fphone-app%2Freset%23Solution1&token=WM_bSQzQ
https://forums.windowscentral.com/e...Fphone-app%2Freset%23Solution1&token=WM_bSQzQ