Currently, I am in India and the Fido SIM has suddenly stopped getting network here. This happened about a month ago and it used to get the Airtel network back then. I tried :
1. Restarting the phone.
2. Use other SIMs on the phone, they work fine.
I have a dual SIM and other SIM which is actually Airtel gets perfect network. To make matters worse, there appears to be no way to contact any person in Fido support. The chat opens the chatbot which is useless in this case. Also, can't make an international call while I am India. Hence, posting in the forum.
I hope that someone from Fido would read from this forum.
Have you made any changes since your lat stay overseas? Some of the things we can suggest trying:
Hope this helps, and let us know how it goes.