I need the TP-amp for the TL-WA850RE extender? The problem is I can no longer access the extender once Verizon made us upgrade to the new router. I need to access a Wi-Fi lock at my mother-in-law's. The one thing that I have to do is not screw up the DECO router at my house. So I have one TP amp already on my cell phone and would like to keep everything working at my house. So what TP-amp should I use to fix the password on the extender?