Hi Guys,   I have an unusual behaviour I need help with. I have Google OAuth enabled in my test environment (trying out a coffee shop styled wifi), and using the domain of my company (our emails is by Google) as allowed domains.   Walled Garden to allow:   *.client-channel.google.com accounts.google.com apis.google.com clients*.google.com contacts.google.com *.googleusercontent.com mail.google.com ssl.gstatic.com www.google.com www.gstatic.com ogs.google.com play.google.com     It works well for people using Mac in my company. However, for Windows laptop, iPhones and Andriod mobiles, I get a 400 error. "The server cannot process the request because it is malformed. It should not be retried."     So only MacOs works for me. Note, I have not enabled anything from the Google admin console, as I believed OAuth should work without the need for that.   I'd appreciate any help or pointers or for those that have faced this issue, how did you resolve this? ... View more