# CDJ Aggregator / El Capitan DVS Connection Issues

**URL:** <https://forum.djtechtools.com/t/cdj-aggregator-el-capitan-dvs-connection-issues/74560>\
**Category:** General Discussion\
**Tags:** dvs, aggregate, macos, traktor\
**Created:** [July 28, 2016, 12:37pm UTC](https://forum.djtechtools.com/t/cdj-aggregator-el-capitan-dvs-connection-issues/74560 "2016-07-28T12:37:18Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![TheCunningOne](https://avatars.discourse-cdn.com/v4/letter/t/f1d935/32.png) [@TheCunningOne](https://forum.djtechtools.com/u/TheCunningOne)\
**Post date:** [July 28, 2016, 12:37pm UTC](https://forum.djtechtools.com/t/cdj-aggregator-el-capitan-dvs-connection-issues/74560/1 "2016-07-28T12:37:18Z")

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**CDJ Aggregator / El Capitan DVS Connection Issues**

I’ve been using the CDJ XDJ Aggregator tool (V1.03) on my Mac running OS X Yosemite for a good while without any issues to my CDJ NXS900’s (V1.22).

I recently upgraded to El Capitan and tried to use the aggregator tool only to find it would only see one of the CDJs, restarted everything and now it won’t see any of them and I get the following error message:

ERROR - PLEASE CHECK YOUR DEVICE CONNECTION.

Tried different USB cables, restarting but still getting the same error - HELP!

Any suggestions welcome!

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**Author:** ![TheCunningOne](https://avatars.discourse-cdn.com/v4/letter/t/f1d935/32.png) [@TheCunningOne](https://forum.djtechtools.com/u/TheCunningOne)\
**Post date:** [July 28, 2016, 12:43pm UTC](https://forum.djtechtools.com/t/cdj-aggregator-el-capitan-dvs-connection-issues/74560/2 "2016-07-28T12:43:14Z")

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Just tried my 2000NSX2 and they are seen fine by the aggregator tool!

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**Author:** ![TheCunningOne](https://avatars.discourse-cdn.com/v4/letter/t/f1d935/32.png) [@TheCunningOne](https://forum.djtechtools.com/u/TheCunningOne)\
**Post date:** [August 1, 2016, 1:44pm UTC](https://forum.djtechtools.com/t/cdj-aggregator-el-capitan-dvs-connection-issues/74560/3 "2016-08-01T13:44:41Z")

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BOOST: Tried resetting my PRAM but still no joy - any suggestions welcome! 🙂

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**Author:** ![frankle](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.djtechtools.com/frankle/32/14841_2.png) [@frankle](https://forum.djtechtools.com/u/frankle)\
**Post date:** [August 2, 2016, 10:23am UTC](https://forum.djtechtools.com/t/cdj-aggregator-el-capitan-dvs-connection-issues/74560/4 "2016-08-02T10:23:33Z")

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Go into Audio Midi Setup and make your own aggregate device. Not hard … Pioneer just put a fancy skin over the process.

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<div class="post-metadata">

**Author:** ![TheCunningOne](https://avatars.discourse-cdn.com/v4/letter/t/f1d935/32.png) [@TheCunningOne](https://forum.djtechtools.com/u/TheCunningOne)\
**Post date:** [August 2, 2016, 10:58am UTC](https://forum.djtechtools.com/t/cdj-aggregator-el-capitan-dvs-connection-issues/74560/5 "2016-08-02T10:58:28Z")

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Thanks mate - I’ll give that a go

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<div class="post-metadata">

**Author:** ![TheCunningOne](https://avatars.discourse-cdn.com/v4/letter/t/f1d935/32.png) [@TheCunningOne](https://forum.djtechtools.com/u/TheCunningOne)\
**Post date:** [August 2, 2016, 12:17pm UTC](https://forum.djtechtools.com/t/cdj-aggregator-el-capitan-dvs-connection-issues/74560/6 "2016-08-02T12:17:18Z")

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> [@frankle](#):
>
> Go into Audio Midi Setup and make your own aggregate device. Not hard … Pioneer just put a fancy skin over the process.

Unfortunately the Audio Midi Setup doesn’t even see the 900NXS when they are plugged in so I can’t even create a manual one. Thanks for the suggestion though.