SimCity BuildIt requires a persistent, low-latency connection. If you are on a train, using public Wi-Fi, or have a router with high packet loss, the game will throw 1100.7 instead of crashing outright.
Many players make the situation worse. Avoid these panicked reactions: Simcity Buildit 1100.7 Error
EA regularly releases patches. If you are running version 1.43 and the server is on 1.44, the handshake fails. The 1100.7 error is common on patch days. SimCity BuildIt requires a persistent
