I have had an iPhone 11 for a year and for the last 4 months whenever I leave home try to access the internet with Safari using Cellular Data the websites start to load and then "timeout". Other apps that need internet will work.
I have removed the SIM card for 20-30 seconds and that fixes the problem for the moment but it is unreasonable to do this every time I leave the house! Is there a more permanent fix for this problem?