I'd expect thats something local, your hw or cellular provider, if that was a direct result of 11.4.1 then the internet would be in meltdown, have you restarted? Asked your provider if they need to push new settings etc?
I'd expect thats something local, your hw or cellular provider, if that was a direct result of 11.4.1 then the internet would be in meltdown, have you restarted? Asked your provider if they need to push new settings etc?