Hi there! I understand your OpenTable account works fine on your computer but you're having trouble with it on your iPhone. Let's see what might be causing this and get it sorted out for you.

To start, could you tell me what exactly happens when you try to use OpenTable on your iPhone? For example, does the app crash, fail to log in, or not load properly? Also, have you tried any steps on your iPhone already, like restarting the device or updating the app?

In the meantime, here are some quick things to check on your iPhone:

1. Restart your iPhone: Sometimes a simple restart can clear up temporary glitches.
2. Check for iOS and app updates: Make sure both your iPhone’s operating system and the OpenTable app are updated to the latest versions.
3. Delete and reinstall the OpenTable app: This can help if the app files got corrupted.
4. Check your internet connection: Try switching between Wi-Fi and cellular data to see if connectivity is the issue.

These steps resolve most OpenTable app issues on iOS devices1 2.

Let me know what you’ve tried and any error messages you might see, and we’ll take it from there!