I am using an iPhone 6S and have used my phone on many other networks around the world.
How to reset the connection? Does anybody know how to reset the connection with the phone?
@JeffreyLIving ah! Now, iPhone 6 and 6S both seem to have eventual intermittent antenna issues. I have seen several people in the community have signal issues on a 6/6S after some time using the phone. I would suggest that if you live near an Apple store, that you take it in for diagnostics. The antenna connection can come loose and become itermittent--they should be able to diagnose that for you pretty quickly if it's the issue.