After the firmware upgrade the connection drops even when connecting to only one Deco all time, connection strength is excellent and Mesh is enabled.

Some site when connected to wifi via Deco give error 

"

This site can’t provide a secure connection

app.uniswap.org sent an invalid response.

ERR_SSL_PROTOCOL_ERROR

"

Connecting through another wifi network, not via Deco is ok

Connecting through mobile hotspot netwrok is ok

Connecting on mobile device 4G network is ok

All is ok on all devices, but not when connected on the Deco.

This is causing me too much hassle as I now have to bypass the Deco to be able to work, while this should not happen like this.