Multiple Pods Cannot Connect to Network?

[Slocombe9]

I've added two OKTO/HECS probe pods to my stack, one with a Communitron HG-55 antenna, the other a DTS-M1 antenna, both with battery power and solar panels, but when I separate them in orbit around Duna, only one of them will connect to the network (in a test launch, around Kerbin, they both connect, suggesting that the DTS-M1, which doesn't have the range of the HG-55, is not able to relay through the HG-55).

See below pics.

What am I missing?

The stack in the VAB:

 

"Dead" probe (at top of stack):

Connected probe:

 

Edited January 3, 2021 by Slocombe9

[antipro]

1 hour ago, Slocombe9 said:

is not able to relay through the HG-55
What am I missing?

Hi, HG-55 is not a relay antenna.
https://wiki.kerbalspaceprogram.com/wiki/Antenna#Available_antennae
https://wiki.kerbalspaceprogram.com/wiki/CommNet

For a Duna relay probe, with Tracking Station Level 3, you need 4x
https://wiki.kerbalspaceprogram.com/wiki/RA-2_Relay_Antenna
or 1x
https://wiki.kerbalspaceprogram.com/wiki/RA-15_Relay_Antenna

Edited January 3, 2021 by antipro

[Slocombe9]

13 hours ago, antipro said:

Hi, HG-55 is not a relay antenna.
https://wiki.kerbalspaceprogram.com/wiki/Antenna#Available_antennae
https://wiki.kerbalspaceprogram.com/wiki/CommNet

For a Duna relay probe, with Tracking Station Level 3, you need 4x
https://wiki.kerbalspaceprogram.com/wiki/RA-2_Relay_Antenna
or 1x
https://wiki.kerbalspaceprogram.com/wiki/RA-15_Relay_Antenna

Thanks! I knew it must have been something simple!

I now have new "orbiters" equipped with RA-2 antennas around Duna and Eve that are successfully relaying previously dead probes.