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Old 10-14-2017, 12:55 PM
Join Date: Oct 2017
Location: Arnhem, NLD
Posts: 2
Unhappy KAS-10 not showing activity when connected to NXR-810e IP Conventional

I am trying to connect KAS-10 over IP-Conventional to the repeater. I have two computers I am trying this with.

1. The gateway computer ( ) that is connected directly to the repeater ( )
2. A remote computer that is on the other side of the VPN tunnel

Keep in mind that both computers are able to read/write the repeater config through KPG-129D.

On both computers I installed a test version of KAS-10. Both configured to use NXDN over IP-Conventional. The gateway has the as interface to work on, the other the VPN interface. On has ID 2000 and the other 2001. Both numbers are in the IP-Console tab of the configuration of the repeater. Both IP addresses are in the network and are connected as being one site.

Now both installations of KAS-10 give "Standby 2000" in there console status window. And in the status bar the IP address of the repeater has a green sphere in front of it and says "Active" as state.

All well you should think. But when I key-up my portable, nothing is shown in the activity window. Als when I try to send a message to the portable from KAS-10 I get a message that there is a communication error with the repeater.

Not being one to give up easily, I started wireshark and looked at the packets going round to the repeater and back. I see an UDP SIP request being made when I hit the "send" button in KAS-10 to transmit the message. But the repeater reacts with a "403 Forbidden" as answer. Well now I am puzzled, is there some form of authentication needed for this? I searched around in either KAS-10 and KPG-129. The only "encryption" type thing I can find is the "Encryption type" which is 1 on both sides.

I also added the IP-addresses of the KAS-10 to the IP-conventional site-group of the channel I am using. When I did this i saw a lot of UDP packages comming in the moment i keyed up my portable, but KAS-10 still doesn't show anything in the activity window. Nor can i send a message.

It doesn't seem to be a UDP routing problem or something like that because i can see it communicate forth and back, and KPG-129 works. But does anybody have any ID why KAS-10 is not showing anything in the activitylog and rejects SIP requests?

With regards,
Michel van der Breggen
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Old 10-17-2017, 9:25 AM
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Amateur Radio Operator
Amateur Radio
Join Date: Jul 2002
Location: Florida
Posts: 1,057

Did you by chance look into the help file of KAS-10 (pdf's in the program folder).
I use my KAS-10 with a trunk system, so the likeness is the same, but I am not having the issue
like you are describing.Check the installation PDF and see what you can come up with.

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Old 10-18-2017, 5:39 AM
Join Date: Oct 2017
Location: Arnhem, NLD
Posts: 2
Default Step in the right direction

Hello Evans,
I have made some progress, the reason that KAS-10 was unable to send a message to a radio was because the RAN of the radio in KAS-10 did not match the RAN of the channel being broadcasted on.

Now the problem remains that KAS-10 doesn't show anything in the activity history window. I connected a serial cable between the NXR-810 and the PC running KAS-10. Now I see activity coming in.

Strangely the version of KAS-10 that was connected through the IP Conventional doesn't show anything.
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ip conventional, kas-10, nxr-810, sip

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