Lennar SmartHome Customer router issue

[HansMair]

We purchased a  new Lennar townhome in 2020 which included 4 Ruckus repeaters on each level. They are wired to the Ruckus router. We seem to be having issues with consistent connectivity. The Ruckus router is wired to Fios wifi. Aside from resetting the router which we've done several times, is there a fix that you can recommend to resolve this ongoing issue? Also, if we need to hire a technician, are there any recommendations for a qualified company? We live in Laurel, MD. Thank you in advance.