Hi there! I understand your Enphase Enlighten app is having trouble connecting after your cable company swapped out your modem. Let’s get this sorted out together.

When a modem or router changes, your Enphase Envoy or IQ Gateway often loses connection to your Wi-Fi network since the network settings are new. To fix this, you’ll want to reconnect your Envoy to the new Wi-Fi. Here’s a clear step-by-step approach tailored for your Windows device using WebKit browser:

1. Open the Enphase Enlighten app on your device.
2. Go to the Menu (usually top-left or a hamburger icon).
3. Navigate to Settings > Connectivity or Devices > Wi-Fi Setup.
4. Tap on Configure Wi-Fi or Connect.
5. The app should prompt you to join a network. Select your new Wi-Fi network name (SSID) provided by your new modem.
6. Enter the new Wi-Fi password exactly (watch for case sensitivity).
7. Save or confirm the connection.
8. Wait for the app and Envoy to establish the connection. This can take a few minutes.

If the above process doesn’t work, consider these points:
- Make sure your new modem’s Wi-Fi is enabled and broadcasting.
- Check that your Envoy is within good Wi-Fi range.
- Restart your Envoy by unplugging it from power for about 30 seconds and plugging back in.
- If you have Ethernet capability, a wired connection from your Envoy to the modem/router is even more stable.

If you are still stuck after trying this, let me know what steps you attempted and any error messages you saw. I can guide you through advanced settings or other fixes. You can also refer to official instructions here for reconnecting your Gateway: 1 and some visuals via YouTube tutorials 5.

Does this sound doable? How far did you get with reconnecting so far?