Need help with Ruckus username & pswd

[Nannaren]

We need help with figuring out the username and password for the Ruckus Switch that was installed by the Builder Lennar. We were provided a username and password when we moved in but do not have it with us as it is 3 years since. We had a power failure and the Ruckus is not working and hence all the Amazon products & Wifi connected to it do not have any power. Our internet is through Spectrum and we're using the wifi through the wifi router connected directly to the Modem. Please let us know how to recover the username and password to the Ruckus so we can update it as per the process in the community.