Issue with syncing Fenix 5 with HRM-Tri strap

Former Member
Former Member
I have had an issue with syncing with the HRM-Tri for my last few runs. When I have finished my usual 10 km run I can see that the running dynamics have been logged on my fenix5 like there was full connectivity with my HRM Tri strap but I have still downloaded the "ext. heart rate monitor" data (just in case there where additional info stored there or the connection dropped at some point during my run). When I do that the aerobic TE and anaerobic TE values of the logged activity change dramatically (fall to levels like I was barely putting in any effort - on my last run they were 4.2 and 2.0 respectively on the fenix5 right after the run but fell to 2.6 and 0.3 after syncing with the HRM Tri strap). Any thoughts?