I have an LCD screen connected to the I2C interface and it causes the IoT pHAT to fail. At least I can tell that the WiFI fails. I thought that the I2C is not used by the pHAT.
What I did to narrow the problem down was to start without anything connected. The pHAT WiFi connects to my network. I then SSH to my Pi. I then connect my LCD to the I2C. The moment I try to run my LCD program, the WiFi fails and I lose connection.
Any ideas what the issue could be?