You said the problem started after a Square update, so I'll assume your Square equipment/software is up-to-date. Have you checked to make sure your iPad's OS is current also? After that, I'd go through all the usual troubleshooting steps: power both the iPad and printer down, then unplug and replug in your power cable with the USB hub, and power both back up again.
If none of those work, check out this site for information on setting up your USB printer (I know you said it was working before, but try this again just in case.) See especially the section labeled Square Stand USB Attachment Issues.
If you still can't get connected, you'll have to contact Square's support team on Monday:
- Click here to go to the support contact page,
- Scroll to the bottom of the page and click More,
- Scroll to the bottom of the page and click I Don't See My Issue
- Click on Call Support - you'll see your customer code, which you'll need when you call in, and the number to call.
Good luck - I hope you get your printer connected quickly.
Judy T Shumway
