Unable to get Keycloak Instagram authentication provider to work

Upon redirection the following URL fails with unable to reach the site error on 12.0.1

https://api.instagram.com/oauth/authorize?scope=user_profile&state=oe6ATEtvvET2N_PjGRDD_rMznX6hHuSNDllgA4Ha41c.252cSRslZrg.sd-instagram&response_type=code&client_id=1510212234930231&redirect_uri=http://localhost:8080/auth/realms/foo/broker/instagram/endpoint

Can you reach that URL from your network? Chrome is giving you a DNS error that it can’t resolve api.instagram.com. Try opening that in a separate browser or incognito window. It looks like a local network issue, rather than related to Keycloak.