Tvheadend

I would like to share channels between two servers with different tuner installed.

Server A -> DVB-T Tuner
Server B -> DVB-S Tuner

I tried to connect via SAT> IP the two servers, connected to the Internet with two completely different connections. But do not get any channel on both sides
I can not understand what i'm doing wrong. Could someone help me?

Server A config:

1 DVB-T Tuner
1 Newtork (SAT>IP Source Number: 1)
60 Muxers
264 Services
160 Channels (The antenna has serious problems at this point)

Server A SAT>IP config:

RTSP Port: 9983
Descramble Services: 1
Exported DVB-T Tuners: 1

Server A http://PUBLIC-IP:9981/satip_server/desc.xml :

<root configId="0">
  <specVersion>
    <major>1</major>
    <minor>1</minor>
  </specVersion>
  <device>
    <deviceType>urn:ses-com:device:SatIPServer:1</deviceType>
    <friendlyName>TVHeadend:9983 28fc0f</friendlyName>
    <manufacturer>TVHeadend Team</manufacturer>
    <manufacturerURL>http://tvheadend.org</manufacturerURL>
    <modelDescription>TVHeadend 3.9.2556~ga68933e-dirty</modelDescription>
    <modelName>TVHeadend SAT>IP</modelName>
    <modelNumber>1.0</modelNumber>
    <modelURL/>
    <serialNumber>123456</serialNumber>
    <UDN>uuid:730c5061-1e95-9ab1-43e4-da28fc0f</UDN>
    <iconList>
      <icon><mimetype>image/png</mimetype><width>40</width><height>40</height><depth>16</depth><url>http://192.168.1.103:9981/static/satip-icon40.png</url></icon>
      <icon><mimetype>image/jpeg</mimetype><width>40</width><height>40</height><depth>16</depth><url>http://192.168.1.103:9981/static/satip-icon40.jpg</url></icon>
      <icon><mimetype>image/png</mimetype><width>120</width><height>120</height><depth>16</depth><url>http://192.168.1.103:9981/static/satip-icon120.png</url></icon>
      <icon><mimetype>image/jpeg</mimetype><width>120</width><height>120</height><depth>16</depth><url>http://192.168.1.103:9981/static/satip-icon120.jpg</url></icon>
    </iconList>
    <presentationURL>http://192.168.1.103:9981</presentationURL>
    <satip:X_SATIPCAP>DVBT-1</satip:X_SATIPCAP>
  </device>
</root>

Server B command line option :

--satip_xml http://SERVER-A-PUBLIC-IP:9981/satip_server/desc.xml