Authenticator missing on new character

My newest character “Vicki” on Misha is a Dark Iron Dwarf Warlock. She has the extra bag spaces and is able to summon the core hound pet, but I am unable to add her to my guild rank that requires an authenticator. Please advise method of repairing this problem as it affects my account security. Thank you for your time and consideration, Tarrnalee.

Did you ever solve this problem? I am having EXACTLY the same problem, but found this post here: https://us.battle.net/support/en/article/11673

Looks like the issues is NOT that an authenticator isn’t attached, but that the character needs to be in the guild for at least 7 days before it can be given a rank that requires an authenticator.

I’m just adding this information in case anybody comes across this post (like I did).