I'm in Meteor. It is Irish mobile network. I have 4G coverage all over Dublin and phone connects without data.
**Workaround **
Set preferred network mode to 2G and wait for data to connect. Start data transfers (app that will send some request). Now go to settings and select preferred mode 4G. Phone will upgrade to 3G and if possible to 4G.
Could this be the default fallback mechanism when 4G data fails? Because now I had to put shortcut to Mobile Network settings and have to joggle. Sometimes I'm too lazy for that and switch to 3G instead, which always works. The difference is huge though: on 3G I get 6Mbit and on 4G I get 64Mbit!
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