It's all about the Software

Your attachment shows the receiver stopped, the antenna selection only shows when the receiver is running.

The API release note probably says it all. API/HW Driver 3.10 beta 6 RSP Control Library + Driver 15-Jun-2022 Release Notes Supports all RSPs & x86, x64 and ARM64 OS. Windows 7 and up. Required for 3rd party applications & developers. Installer may require device reboot. After installing v3....

Another thing to check is that the SDRplayAPIService is running, <Task Manager/ Services>

I've been having occasional problems with the API service not starting on boot up for some
weeks now and have to resort to starting the API manually.

Les

I have the same problem caused by the API not starting on boot up, running SDRuno kicks the API into life.

I got round it by putting a Restart API Service shortcut on the desktop, bit of a nuisance but until a solution
is found it will do for me.

Thanks Simon, that will teach me to scroll further down the page when I have problems.

I'd got so used to seeing the request for permission to install C++ during the program update
so was a bit puzzled when it didn't happen. C++ 2019 was listed under Tools but had not
been installed.

Version 3.0.26 32 bit won't start, reports missing files: mfc140u.dll vcomp140.dll vcruntime140.dll I reinstalled V 3.0.24 32 bit and that version works ok. I did the installation/reinstallation twice to be sure a microsoft update hadn't screwed things up, also downloaded V3.0.26 32 bit twice in cas...