SIM Card Problem

[h2o3]

My phone couldn't recognize my sim card in the afternoon. I went to Fido store and got a new sim card. The new sim card worked for only 30 minutes and the phone couldn't recognize it again. My phone is Nexus 5. My wife's sim card (fido as well) worked fine in my phone. My wife's phone couldn't recognize my sim card either. 

[KAPABLE-K]

Thats strange that two SIM card would do the samething. You did try a diffrent card and it worked you tried a diffrent phone and it worked I would suggest you call Fido and asked them to reset your line on their end.