@idzeeboo
When you are using the Google Account Login option, this is just handling the login although the credentials for TuneIn may or may not be the same as for your Google Account.
When you Signed Up for TuneIn, did you actually use your Google Account username and password to sign up. (as opposed to just using the Google Login feature).
Go into your TuneIn account (on PC) and look at your user information. Here you should find your TuneIn username (email address), and the TuneIn account password. (likely different than your Google password unless you used the same password).
The above is what the TuneIn channel/app on your Roku device is looking for. They are looking for the actual TuneIn account username and password.
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
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