Recently I have been using my Forerunner 945 and when I select 'run' the GPS has an issue with connecting. Usually, there's a grey bar at the top of the display which slowly turns red, then green once connected. It also makes a sound and has a green 'tick' icon. However, it has recently only had a tiny bit of red, before eventually connecting momentarily and then being fully green (no tick) then mostly red again, and does not reconnect. When I then run, my location/pace is not accurate. Any solutions would be much appreciated!