A while ago, we got a Deco m5 set up to improve our wifi and get more reliable connection throughout our house. However, as the other people living my the house aren't great with tech, they had to have some people come and set it up, instead of us doing it ourselves. Now, I need to get into our Deco to port-forward some things, and it needs an Owner ID password to log it in. Talking with the other people in the house, it seems the people who set it up for us never told us the Owner ID password, or asked what we wanted it to be. So, now I can't log in to port-forward without said password. The website said to use the app if I forgot my password, but the app directly sends me to a setup screen, with no way to connect to an already set up Deco.

Does anyone know how to connect my already set-up Deco to the app? Or how I could find out the password without using the app? Thanks, and sorry if this is poorly written, I usually don't write forum posts.