So I have the XT1080M Droid Maxx factory unlocked.

I have a rogers 4g nano sim installed

The problem is that even while having 3 or more bars when I try to send a text message even after just receiving one it won't send a message. I turn airplane mode on the off then try sending the message again and it will go. this lasts for maybe 15 mins and I will have to do it again.

I have a feeling that the phone is dropping my chosen network in favour of searching for the Verizon network that is non existent in Canada, while still telling me I'm connected.

Does anyone have a solution?
I am already using a third party text messaging app (Handscent) because the included app seemed to do it more often.