Hello Duncanmcleod77,
Are there any settings on the phone to set Wifi-calling as preferred over cellular networks? Have you tried to reset the Wifi connections at your home and office locations? Have you verified there whether there interference on the Wifi channels being used at those locations?
duncanmcleod77 wrote:...I was in Las Vegas last weekend, roaming on ATT and the phone connected to Wifi Calling flawlessly whenever I connected to wifi networks. It was smooth, fast and reliable. A great experience. This tells me it has something to do with the Fido network and it's not my phone....
I understand it seems to have worked differently when you were in the US, but I think it might have more to do with your phone connecting to those Wifi locations rather than something to do with the Fido network. It appears that your reasoning for the issue being Fido's network is that it worked flawlessly when you were in the US. However, with Wifi-calling, calls and SMS are sent using the internet, not cellular networks.
Taken from here.
The fact that your phone was roaming on AT&T should not be relevant. The call (and/or SMS) does not go through their networks. The calls go through Fido's networks via internet protocol. If there were issues with Fido's network and Wifi-calling, you should have experienced those same issues regardless of your location.
One possibility is that the phone has a preference for cellular networks and that preference is switched to Wifi-calling when roaming. I understand you also tried to enable Airplane mode without any improvement at those locations. Had you tried to enable Airplane mode when you were in the US as well?
Another possibility is your phone's actual connection to Wifi. How is the Wifi signal? Is there interference on the channels? Have you reset the Wifi connections for those locations? Some people have noted better connections at some locations over others. Have you verified that the firmware on your modems/routers are updated?
Hope this helps 
Cheers
Hey @duncanmcleod77,
Is the same thing happening with both yours and your wife's device or is this only happening with yours?
Have you had the chance to test out your SIM card in another model to see if that changes anything?
Let us know!
Did anything change when testing your SIM in another phone, @duncanmcleod77?
Have you tried a factory reset as well?
Thanks for confirming @duncanmcleod77!
As the service is active and this does happen to both phones, it does seem to be device related, or it may even be the wi-fi network itself.
Have you tried reaching out to LG direct to see if maybe they have more information on this?
Hello again,
Have you tried any other Wifi locations in Canada? You might consider trying to see how Wifi-calling works with other locations while on the Fido networks. Many coffee shops, restaurants, libraries, etc have free Wifi. Some mall locations also offer free Wifi.
Just a thought...
Cheers
Hey @duncanmcleod77!
It's been a while since we heard back from you regarding this. Was it resolved? If so, how?
Keep us posted, I'm sure the info can help others!
Do you have a friend or family member with a Fido phone that you might be able to use to test your SIM?
Otherwise, could you try performing a factory reset on your device and let us know if that helps?
