While there isn't a direct setting within the Canon Connect App to completely bypass these prompts, you can drastically minimize them by adjusting a few iOS network settings. The "Join" prompt is a security guardrail built into iOS that requires manual user confirmation whenever a third-party app tries to switch your phone over to a device's local Wi-Fi network, and unfortunately, Apple doesn't allow apps to permanently whitelist this connection. However, you can prevent that frustrating "Use Mobile Data" or "Keep Trying Wi-Fi" pop-up by going into your iPhone’s Settings > Cellular, scrolling all the way to the bottom, and disabling Wi-Fi Assist. This stops iOS from aggressively trying to dump the PowerShot's Wi-Fi connection just because it doesn't have internet access, allowing the phone to stay quietly connected to the PX without triggering those cellular fallback warnings every time.
