Hi Trevh
Welcome back to the community forums.
Sorry to hear you've not been able to connect to the app since upgrading your speed.
Can you try uninstalling the app and clearing all it's data from the device to see if this helps resolve the issue?
Are you able to use another device which has not used the connect app before to see if the connect app works on another device?
Regarding your service issues, is it just when you go into certain rooms of the home that the connection drops or do you find it dropping on all devices at the same time?