Thetis fails to start

[wb2...@gmail.com]

Hi, I've just converted a Windows 10 Enterprise system to Windows 11 Enterprise and now Thetis-HL2 won't run. The current version crashes on start with "Thetis has stopped working" before the command window or anything else. I've deleted the wisdom file and it never made a database. Several delete and reinstalls later, I tried installing the .12 version and get the same error. Both versions worked on this machine under Windows 10. The Visual and Net packages were installed with the OS. The event viewer says the crash was faulted by ntdll.dll. The OS is 25H2. SDR-Console works correctly with my HL2, which is a build 9 from about 6 years ago. The transceiver net cable is plugged directly into the computer, which is a Supermicro I7 based machine I've used for over 12 years. Other software, such as WSJT and JS8Call, works as intended. 

 

I'm lost, please help.

Pete

WB2QLL

Mount Pleasant, WI

[Mike Lewis]

I run Win11 Pro. 

 

Just a few days ago while testing code for a DIY MIDI controller, events went crazy and corrupted my Thetis-HL2 install. 

 

Many attempts at installing HL2 and non-HL2 versions, old versions, deleting folders in many places such as AppData…..  Would never get past the 6sec mark, which is the bar graph just starting to move to the right at startup.

 

I finally got it going again.  Exactly what I did to fix it is not known, the final fix possibly obscured by not rebooting after each change.  Besides deleting the folders I searched for Thetis with registry editor and deleted a load of registry keys.

 

Reinstalling it still would not startup.  A short time later I rebooted and then it worked.

 

Maybe this can work for you.

 

• Mike K7MDL

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[wb2...@gmail.com]

Here is another data point. I booted into safe mode with networking and, amazingly, Thetis started, created the Wisdom file, and connected to the HL2 and displayed signals! Naturally with no sound card in safe mode it can't be used. Going back to normal mode it fails as before.

However, I'm sure someone with more knowledge should be able to pinpoint what's wrong. 

Pete

[wb2...@gmail.com]

And furthermore, it turns out that Reid's last HL2 version of PowerSDR, 3.5, works perfectly on the maching. 

Any ideas?

[Luca EA8DJR]

WIN 11 SECURITY SETTINGS ISSUE MAYBE?

[wb2...@gmail.com]

Happy to relate that I've solved the issue, although it took many hours of tinkering. I worked with ChatGPT which eventually found the problem but disgorged many guesses that didn't work out. The breakthrough came when I noticed that with all audio devices disabled Thetis was able to start. Apparently Thetis enumerates the audio devices during its startup sequence. It turns out that when ASIO4ALL was present, Thetis crashes on startup as I've described, as long as any one or more other audio device is enabled. The fix was simply to remove ASIO4ALL. I don't recall why I installed it in the first place, and perhaps there's a new version that works with Windows 11 but I won't worry about that until I need it. Nice to have my main rig working again!

 

I do wish software would identify a problem when failing to operate. ASIO4ALL was not listed in Device Manager, and the various Windows system and task monitors didn't reveal anything useful here.

-Pete

WB2QLL

[Ken Johnson]

Removing ASIO4ALL fixed it. Thank you.