Re: We piggyback the 4G from our mobile phones
I'm doing the opposite, I'm piggybacking my 4G smartphone (Vodafone "up to" 500mbps LTE contract) onto wi-fi to get any sort of internet connection.
At work, LTE is reporting 0.001mbps, so slow that the providers speedtest app claims there is no internet connection. I've switched provider, when the contract runs out, but the switch will have to wait until January. The new contract is "only" 50mbps, but at work I know I will get between 10 and 30mbps.