I pulled the power connector from the SDR2 Pro for a hard power reset, plugged it back in, then ran ExpertSDR2 (not 3) and upon opening it updated the firmware and now ExpertSDR2 is running normally. I'm going to wait a while before I try to install ExpertSDR3 again.

Hi, in case anyone finds it interesting, let me tell you what happened to me today. After days without turning on the SunSDR2DX I find that once I start the program, when I press TUNE the program disconnects and gives me the famous message Failed to read the device calibrations.. When I keep trying to connect, when it didn't give me that error message error, when going to Tune or TX, it disconnected and gave me the error Lost connection with Sunsdr2DX.
I read in the forum and did a ping, seeing that it gave 0 sg. As a possible LAN failure was discussed in the forum, I restarted the SWITCH to which I have the SunSDR2DX connected and everything was solved.
I hope it is useful to you.
EA1AHA

In the newly released User Manual, Ver 1.0.0 (Prelim), look at Para 18.1; Page 94.
There is a description of things to do in case you get the "Failed to read Devie Calibrations".

Tom W3FRG

tnx. It is necessary to read more user manuals. Icom Remote Utility Use the same UDP 50001 port.Tom W3FRG пишет: