Bluetooth, ANT+ and 2.4 GHz WiFi don’t mix well, as they all share the same frequency range… You can setup your 2.4Ghz WiFi so as to not cause issues - my solution, however, is simply to disable this band for the ride.
Depending on your basement construction, signals may be having hard time reaching there. Best is to draw a wire (Ethernet cable) directly to your router.
Good luck!