Zend certified PHP/Magento developer

how to replace my existing WIFI system while keeping it working for a short transition period

I have an old Orbi Netgear wifi working off a Verizon Modem. I want to upgrade to a new Netgear Orbi Router 6. Can I keep the old system up while I move across?
But I want to reuse the old SSID# and Password for easy transition?