Facebook and Instagram Intermittent Loading

I have an Orbi/ Satellite combo and have been having similar problems. Most everything was fine but Facebook wouldn't load images. Switching to cellular data solved all problems. The solution that worked for me was to log into my router and manually reinstall the current firmware (downloaded from netgear's site) for the router and then the satellite. It hasn't been up very long, but as of now all Facebook-related issues (ok, the ones regarding loading:) have been resolved.