After updating to 1.4.0 Build 20200324 Rel. 51287 I am experiencing sporadic loss of connection to router / internet.

I am thinking of either downgrading to 1.3.0 which is available for download or seeing if there is a more recent version (date on 1.4.0 eludes that this build was created in March).

Any tips for successful firmware downgrade? Or does anyone have any pointers to a more recent build that I can download and install manually?