What are you using for the WIFI connection source and how is it configured.
– set up the mixer with static IP address.
– only use a 5g WIFI network, at this time there is less traffic on it and there
are more channel available.
– hide you WIFI SSID broadcast, try it with out security turned on.
Losing connection has never caused me the need re start the mixer to re gain
a WIFI connection.
Is the WIFI network the mixer is on used for anything else?