Connection lost CQ12T did al :)

Hi everyone,

I’m experiencing intermittent connection drops between my iPad and my Allen & Heath CQ-12T. I’ve already taken several steps to stabilize the connection, but the app (CQ MixPad) still loses connection occasionally.

My Setup:

  • Mixer: CQ-12T

  • Control: iPad (latest iOS and CQ MixPad app version)

  • Connection: External Router (Dual-band)

  • Workflow: I MUST use Bluetooth and Wi-Fi simultaneously (streaming audio via BT while controlling the mix via Wi-Fi).

What I have done so far:

  1. 5GHz Band: I am using 5GHz Wi-Fi to avoid interference with Bluetooth (which runs on 2.4GHz).

  2. Static IP: I’ve assigned a Static IP address to the mixer to avoid DHCP lease issues.

  3. Router Channels: I’ve set a fixed channel (non-DFS) on the router to speed up reconnection and avoid interference.

  4. iPad Settings: “Private Wi-Fi Address” and “Limit IP Address Tracking” are turned off. Local Network permissions are enabled.

  5. Environment: The router is placed in an elevated position with a clear line of sight.

The Problem:
Even with these settings, the connection to the app still drops randomly. The Bluetooth audio usually keeps playing, but the MixPad app loses sync and I have to wait for it to reconnect.

Since I cannot disable Bluetooth, are there any other “hidden” settings in the CQ-12T or specific router tweaks (like MTU size, Beacon Interval, or specific iPad background settings) that could help make this 100% stable?

Any advice would be greatly appreciated!

You may get more gel in the CQ forum.

Is the tablet’s screen timing out and going to a screen saver (or turning off completely) when this happens? If so, that is an Apple issue. iOS tends to shut down “non-essential” things when the screen goes dark, including most networking. This will generally cause a disconnection with the console that must be manually restarted to fit. If this is what is happening to you, the best option is to lengthen or even turn off the setting to turn on the screen saver.

Thx it works , I have all setup bij Static IP , nothing automatic ! now it stays nice, only slow showup In the CQApp