Hey there,
When launching SQ Mixpad on iPad or MacBook, we receive error message “Failed to connect. Could not open a connection to the unit.”
Hoping to pick your brains on this issue!
TECH INFO
SQ-6 Firmware Version: 1.4.4 r3614 (Dec 2019)
SQ Mixpad App (iPad, AU App Store): V1.4.3 (Aug 14, 2019)
SQ Mixpad (MacBook, running Catalina) V1.4.3 - Allen & Heath have advised Catalina is not officially supported at this stage.
TROUBLESHOOT THUS FAR
Here’s what we did:
We Connected an AirPort Express Router via CAT6 to the Network Port on the back of the console.
On the SQ-6 under Setup → Network Setup → With DHCP ON: “Dynamic Address” displays ‘Acquiring…’, and the unit does not pop up on our iPad/Macbook. When DHCP is OFF, a static address appears i.e. 192.168.1.107 AND the unit displays on our iPad/Macbook.
However, in all instances, we receive the "Failed to connect” error message when trying to connect the unit.
This was the case on the previous SQ firmware: 1.4.3.
Today we updated to SQ firmware: 1.4.4 but issue remains.
Any ideas how we can get an iPad connected to this thing? 
Thanks in advance!
Josh