Can’t connect to Google Analytics

Hi, I’m running into a problem connecting the site to Google Analytics’ API.

I’ve managed to set up the API keys etc. with no problems, but when I click the “Connect to Google Analytics” link it takes me through the permission screens, I grant them, then it bounces back to the plugin’s settings page, and nothing has changed. The site a multisite but otherwise there isn’t anything about it that I would expect to cause problems. Lack of an error message makes it pretty hard to troubleshoot–any thoughts?

Thanks in advance for your help!