You really need to change your network then. Are we talking top half or bottom half?
Also live "just inside the M25", and can go anywhere in the North part of London and always get 4G, indoors, outdoors, miles from the nearest town, or otherwise.
Hell, it's only giffgaff, which is an O2 backend I believe. But also a 4G Three SIM in an Huawei box that is my entire Internet connection (no landline, etc.). And I have taken that box everywhere too.
Biting the hand that feeds IT
