Hi I took the plung yesterday and up graded my virgin media broadband from 100mb to 500mb doing some speeds tests there is a huge diffeeence between what my tplink tether app says the speed is and wha

Can anyone shed any light Day 1 - Connecting wirelessly via 5GHz my Macbook was getting over 33mbs which I was really happy with Day 2 - This is down to 15mbs, nothings changed - same location, same s