Thanks for all of the responses. A bit more tinkering and the 'magic' turns out to be Duplex = 2, linktolink = yes in rpt.conf, and not sure it matters but duplex=1 in simpleusb.conf. Maybe that was obvious in some part of some documentation, but, often head-to-wall interface is part of the solution. Now to get the RA-35 and/or RA-40 and/or the stellar DFM PiHat interface setup for the repeater chassis of interest and make more. 3. AllStar as Repeater Controller Connect to Duplex Hub (Jim Aspinwall No1PC) 4. Re: AllStar as Repeater Controller Connect to Duplex Hub (Mike) 5. Re: AllStar as Repeater Controller Connect to Duplex Hub (David McGough) 7. Re: AllStar as Repeater Controller Connect to Duplex Hub (Jim Aspinwall No1PC) 8. Re: AllStar as Repeater Controller Connect to Duplex Hub (Brett Friermood) 9. Re: AllStar as Repeater Controller Connect to Duplex Hub (Kevin Babich) 10. Re: AllStar as Repeater Controller Connect to Duplex Hub (ARS W5OMR)