$540 via promo credit when you add a new smartphone line with your own 4G/5G smartphone on postpaid Unlimited Plus plan between 5/18/23 - 5/31/23 & port-in req'd. Promo credit applied over 36 months; promo credits end if eligibility requirements are no longer met.
What error lights are you getting on your router?
Would you be able to do some testing from a Laptop/Desktop PC?
Also, as the other poster stated, are you getting any error lights on the router?