I just upgraded my firmware through the Deco app. The purpose of the upgrade was to have the option of being able to choose the wifi security to be able to connect to some devices. 
 

Immediately after the upgrade, I am facing trouble with my internet connection. Pages would load halfway and then stall. I will have to keep reloading the page and sometimes, it shows "No internet connection", and all will be ok after reloading again sometimes. This is without vpn.

When I try to connect to ExpressVPN, I will be able to surf for like 2 seconds before it completely freezes, and I get a message from my vpn app saying my internet connection is blocked.

Can this be resolved? And if not, please let us have an option to roll back the firmware