Hi! I see you’re having trouble modifying or saving a schedule in your Wemo app. Let’s try to get that sorted out. Before we dive into solutions, could you tell me if you see any specific error messages when you try to save or modify the schedule? Also, have you tried anything else so far, like restarting the app or your device?

In the meantime, here are some steps that often help resolve schedule/save issues with the Wemo app, especially on an iPhone with iOS 18.6:

1. Power Cycle Your Wemo Device
Unplug your Wemo device, wait about 20 seconds, then plug it back in. This often refreshes the device’s network connection and firmware state without a full reset.

2. Update the Wemo App
Check the App Store for any available updates to the Wemo app. Running the latest version ensures compatibility with your iOS version and fixes previous bugs.

3. Restart Your iPhone
A quick restart can clear out temporary glitches that might interfere with app operations.

4. Check Your Network Connection
Make sure your iPhone is connected to a stable Wi-Fi network. Sometimes switching to another reliable network or toggling Wi-Fi off and on helps.

5. Try Saving the Schedule Offline Trick
Some users have found success by turning off Wi-Fi, then opening the Wemo app, making their schedule changes, and saving them while the Wi-Fi is off, before turning Wi-Fi back on.

6. Log Out and Log Back In
Within the Wemo app, try logging out of your account and logging back in. This can refresh your account connection and permissions.

7. Reinstall the Wemo App
As a last resort, uninstall the app from your iPhone, then reinstall it from the App Store and set up your devices again. This cleans out any corrupted app data or settings.

Could you please try the first few steps and let me know what happens? If the problem continues, I can guide you through the more advanced steps or check if your device might need a firmware update or reset.

Are you satisfied with these initial suggestions so far?