Please, if i upgrade the existing Os and firmware to the latest, Did i need to reconfigure anything again ? Please treat it as urgent

Hello, I have one CCR1009-7G-1C-1S+ and I have installed and enabled dude server and hotspot on the device, I then installed Dude client on Server 2012 R2 but when trying to connect, it just says connecting but nothing happens, untill i disabled the hotspot on the device , the Client dude now displa...