DDJ-1000 sound cut issues

Update: Reinstalled the DDJ drivers and used the device for about 3 (non consecutive) hours until I had this issue again. This time I was actually recording a set, outputting audio through Rekordbox and audio+video via OBS, with it capturing the audio through BlackHole and the master PC out feature. The Rekordbox output has the glitch. The OBS recording's audio doesn't... On video I can see the master leds on the DDJ dropping for a second (but not the channel leds). Any ideas?

Update 2:

I'm left wondering if this could be an electrical issue...? Might sound crazy, but here's the reasoning:

A few days back I couldn't really make any noise so I mixed with headphones only (monitors not connected to the RCA output), no sound drops. When listening back to the last recording where I had the issue, just before the sound goes back up I hear a signal noise as if you were reconnecting the cables. In addition to that I just tried mixing another hour with the monitors connected to my dock instead, and the master PC out on and audio being routed to the dock so I could listen - no issues

Any tips? Maybe RCA cable fault? Maybe a power adapter fault? I have everything connected to an APC Back-UPS 400, so I'm not really sure, the power source should be clean...

I know what it is in my case. Audio stops when Wi-fi connects to a network.

@tecaspt > I would first start by checking to see if you have any other tasks running in the background which may be causing a hiccup; open the activity monitor and watch for changes in other applications or processes around the time the audio issue occurs.

You're always best to have the audio device connected directly to the computer (no hub), but if you have any other USB devices connected that certainly could be a source to investigate as well.

Apologies for the late reply, but it's been a nightmare trying to log in here for some reason I've not yet understood.

Thanks for the tip, SIMON, but Wi-fi is always off, I only use wired connection. I do have Bluetooth on (however I always have bluetooth off on my DM-40BT's when mixing)

Pulse - I've tried with both my background apps on and off, same happens. I am not sure how I should check on the activity monitor when this happens. I can try mixing with the laptop lid open and rekordbox on the external monitor, but it happens so fast I'm not sure I'd be able to capture it... I've tried connecting in the ways I've described and I've had the issue with every single one of them. In the past couple of days I have tried connecting with the cable that comes in box directly to my dock as well, I've had the issue happen too.

On this clip I've managed to capture today you can hear what happens:
https://clyp.it/pht3lsya?token=dca3272d4380a6495a59f22e658582ba

Around the 2 second mark you can hear the sound drop. Just before the 4 second mark you can hear the "interference". This is an unedited audio straight from Rekordbox's recording feature, I simply cut it in the part that matters.

I've had the exact same issues. Increased DDJ latency and that helped a little but after upgrading my OS the issue seemed to be resolved. Then I upgraded again to Mojave and it broke again.. just reinstalled blackhole hoping it'll help to get on the latest version. 

@tecaspt > Please try increasing the audio buffer size, and you can also try disabling the Intel Turbo Boost function with this tool. The audio drop-out certainly could be caused by other applications or tasks running - you can run the Activity Monitor in the foreground to keep an eye on other processes that are possibly spiking the CPU or RAM usage.