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VEP 7 - server connections not showing
Last post Fri, Apr 10 2020 by RiffRiffington, 7 replies.
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Posted on Sat, Nov 23 2019 17:48
by Ionactive
Joined on Sat, Mar 30 2013, Posts 50

Evening folks.

Well  - yesterday I took the plunge and upgraded to VEP 7.  I have been using VEP 6 for some time on a DAW / 3 slave system and, in the main, all has worked really well. I needed to upgrade to VEP 7 as I needed a template for a new Spitfire Audio BBC SO library and this was produced for VEP 7.

As far as the function of VEP 7 goes, I am really pleased. The upgrade went OK and it works. 48Gig of BBC SO loaded onto one slave, and all working well with Pro Tools.

I have Win 10 systems, each with 64 Gig RAM and I9 exstreme CPU. All software is up to date.

So my problem is..... and this does not happen "all the time" (but most of the time), is that when I instigate a plugin in Pro Tools it cannot find any servers 'out there.....'. I have done the normal stuff like making sure that the Windows Fire wall will let through VEP 7 and windows bonjour service etc. I have done this on all four systems. However, for much of the time I can see no servers.

I can use a direct IP address and name of instance, but that is really a pain.

So... have I missed anything obvious here?  VEP 7 seems to be very solid, I am using 32 buffer settings with no artifacts or clicks with everything running at once. The DAW breaks no sweat either.  Its just trying to get this network broadcast side of things to work I am finding a pain.

any ideas?



Hmmm (edited to add)... OK, so my instances were not 'activated' (or the channels at least in them), when activated then the server seems to show up...  

Posted on Sat, Nov 23 2019 22:45
by erik250
Joined on Sat, Feb 04 2017, Posts 1

I think I have the same problem. 

The announce feature (showing the instances) sometimes works, other times it doesn't and lately it has been mostly not at all. I can still connect manually by filling out the server and instance name manually, and it connects fine, but it's certainly not ideal. 

I'm running the latest VEPRO on Windows, one slave and a master machine. 

Is there some sort of a trouble shoot list to go through to sort this out? 

Thank you,


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Posted on Sun, Nov 24 2019 01:01
by bbelius
Joined on Sat, Mar 14 2015, Posts 745


Make sure that your firewall is not blocking your DAW / VEP.
Also check that the Apple Bonjour Service is running.

Best, Ben

Technical Support - Vienna Symphonic Library
Posted on Sun, Nov 24 2019 07:29
by Ionactive
Joined on Sat, Mar 30 2013, Posts 50
Hi Ben

Thx, but as pointed out in my OP, those were the first checks I did.

Rgs Mark
Posted on Thu, Nov 28 2019 23:41
by NathanStornetta
Joined on Sun, Mar 29 2015, Posts 1

Hi all,

Very interesting thread as I'm experiencing the same issues so far...

IMac Pro as main machine, Macmini as slave, both machines connected via Ethernet.

Cubase 10.5, VEP7 on both main and slave machines.

Like Mark and Erik, I have checked all Firewall permissions and manually set up the IP addresses and Network addresses. To no avail, sadly, as I cannot see any instance of the slave's VEP, even when typing in the server IP as well as instance name...

Also maybe worth mentioning, never have I seen the window saying "VEP pro is trying to establish a connection accep/refuse"... Which I did have with VEP6.

Main machine is running Mojave and slave is running Catalina. Should this make it complicated?

Very much looking forward to seeing how this will resolve! Hoping it's a one click "permission" to react to.




Posted on Fri, Nov 29 2019 07:54
by Paul
Joined on Sat, Aug 03 2002, Vienna, Posts 12072


The best idea is to send your network settings (screenshots of all involved computers) to , so we know a bit more. 

Static IP addresses will help, consumer networks will help (192.168.0.x or 10.0.0.x), subnet masks

For testing, try direct connections as well (take out the switch/router for a quick check). 


Paul Kopf
Product Manager - Vienna Symphonic Library
Posted on Fri, Apr 10 2020 03:44
by RiffRiffington
Joined on Sat, Jan 25 2014, Posts 2

I was having this same issue before I realized that you have to open the Vienna Ensemble Pro Server application and create an instance before any instance will show up in your DAW. This could be entirely elementary as I just upgraded a few hours ago. But if it is of any help let me know.


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