Originally Posted by undistanced

New here, glad to know that this is a known and unfortunately common issue based on discussion here. This recently happened to my P2 and I - my account has been working fine and am able to transfer points to external partners (I'm on T-Mobile). P2 recently changed phones and could not transfer miles due to the authentication error despite phone number remaining the same (he has ATT if that's relevant at all). We called CapitalOne customer service numerous times and were told there was nothing they could do. If anyone here needs those points/miles ASAP and have a P1/P2, one rep told us they can transfer the points to the account that is working. You just need to provide the card # of the account that is working and CVV and let them know how many points/miles you want to transfer. The transfer is immediate.

This issue was extremely frustrating to deal with, but we were relieved there was at least a workaround as we needed those points/miles ASAP to make a time-sensitive flight redemption. Just wanted to offer this info in case it helps anyone else!