I have a signal booster from Verizon and see in the documentation that I need to register it with my wireless provider (Verizon Wireless). All links on the Verizon site lead to this dead end: https://www.verizonwireless.com/content/wcms/overlays/register-signal-booster.html
I also see others have the same question - Maybe Verizon could fix that so we don't waste time chasing around to find an answer.
I'm sorry about the problems you've been having trying to get your signal booster registered. We'd love to help you and we're sending you a Private Message so we can better help you.
~Jesse