On my Oneplus One phone, the LTE data does not work and shows an exclamation mark when I turn mobile data on. It requires me to login to t-mobile. When I click to log into t-mobile I am redirected to u.web2go.com/upsell, and I am told I do not have a data plan. However, I do have a data plan, set to unlimited 4g data. I am able to browse t-mobile website, but no other website loads for me. What steps can I take to resolve this?
I called yesterday and have gotten the issue resolved. Thank you for your response.
Manage your T-Mobile account