It says I’m not connected to internet when attempting to update, how can I fix that?

Greetings kaiden188,

We’re glad to help you update your Apple Watch.

First, make sure your Apple Watch is compatible with watchOS 9: Apple security updates - Apple Support

The latest version of watchOS is 9 for Apple Watch Series 4 and later and 9.0.1 for Apple Watch Ultra only. Learn how to update the software on your Apple Watch.

If it is, please use the steps in this article to complete the update: If you see 'Unable to Verify Update' when updating Apple Watch - Apple Support

Even though the title of the article doesn’t exactly match your issue, those steps should help.

Please let us know the results when you're able.

All the best.