No GPS recording

Firstly I don’t have a Fenix 5 but as I can’t find the Fenix 3 forum, this is as close as I can get to where I should be. Over the winter months most of my activities have been indoor, therefore no need for GPS, but I have ventured outdoors for running twice in the past week and both times no GPS was recorded. Everything else seems ok, I wait until the GPS circle changes from red to green I do my run but no GPS is saved. Any ideas????