An apology to international readers – some of the details in this post apply specifically to Australia, although there will be principles here that you can apply. I live just 5 km line of sight from a regional Australian city and our internet comes by ‘fixed wireless.’ Fixed wireless is essentially a dedicated 4G connection with a local directional antenna. The problem is that most of the towers are oversubscribed, and upload and download speeds are very poor. (5Mbps down and 1Mbps up).
For the past 3 months I’ve been experimenting with various configurations of 4G carriers and modems to tweak the maximum speed I can from the 4G data network. The results have surprised me!