I was in London today, at a venue on Southwark Street and I was surprised to have connectivity issues, not just with my home iPhone on the Three network, but also with my work phone on Vodafone.
I don’t know why the connections were so poor, certainly both phones had high signal bars. We were on the seventh floor, which I have found isn’t usually an issue, but today, poor bandwidth or sometimes non-existent bandwidth.
It didn’t help matters that the guest wifi wasn’t working either.
All was fine by the time I got to Paddington.