The short answer is that there is a button on the bottom of most of these adapters next to the Ethernet port. Pressing this resets encryption. If you don't have that button, there is a software utility you can use to do it.
Would you please tell me what you are trying to do so I may give you a complete answer? Are you trying to add devices to your network? Something else?
If I understand what you want to do, I will see if I can give you a complete answer with all the steps.
OK. I wish you the best to get it going.
Hello. My name is***** just want to check in with you to see if you have been able to reset the encryption or if you still need assistance with your question. If you do need assistance, let me know and I'll be happy to do what I can to help.