BACNET CLIENT

[Gadjoken]

Hello,
I would like to use the BACNET CLIENT apps to retrieve BACNET objects. When I use the BACNET apps I can not find all the BACNET participants. 
On the other hand, when I use this script:

res=io.readproc('bacwi')
log(res)

So I find all the participants well (1.1.10.242 is a Bacnet gateway/IP to MS/TP adapter with 14 air conditioning cassettes behind) :
 
* string: 9268 1.1.10.242
1600001 1.1.10.241
16001 1.1.10.242
16002 1.1.10.242
16003 1.1.10.242
16004 1.1.10.242
16005 1.1.10.242
16006 1.1.10.242
16007 1.1.10.242
16008 1.1.10.242
16009 1.1.10.242
16010 1.1.10.242
16011 1.1.10.242
16012 1.1.10.242
16013 1.1.10.242
16014 1.1.10.242

We found them a first time with a scan that lasted 30 minutes but today nothing. 
Do you think it is only the connection via VPN that could be problematic? We are on a SpaceLynk.
Thank you for your understanding.
B. R.