PC won't recognize PPA - "Device not found" - SOLVED
Posted: Fri Jul 16, 2021 5:27 pm
Posting this here to document the issue and the steps to resolve in case anyone else runs into this.
I purchased a Pegasus Power Box Advance and could only get the software (PPB-Install_v1_17) to recognize the device on 1 of 3 different PCs. All three running Win10 Pro. Unfortunately the PC it worked on is my office desktop. Both my laptop, and the mini-PC I have at my telescope gave the same error when trying to connect to the power box using the app: "Device not found - Cannot discover a known device".
I could tell the PPA was working, because it was powering the mini-PC and my ASI2600MC Pro and ASI174MM Mini. Those cameras even showed up in the device manager. However in the device manager for the laptop the Power Box Advance showed up as an "Other Device" while on the mini-PC is shows up under Ports (COM & LPT) as USB Serial Port (COM5).
I then noticed that when I opened the Pegasus Astro - Pocket Powerbox software and went to the Config tab, selecting a port from the dropdown resulted in the error "An error occurred while querying for devices: Invalid class" so I decided to search for solutions to "Invalid Class" and I hit the jackpot!
I found this:
https://social.technet.microsoft.com/Fo ... powershell
And I followed these steps:
---------------------------------
How to rebuild the WMI repository.
• Disable and stop the winmgmt service
• Remove or rename C:\Windows\System32\wbem\repository
• Enable and start the winmgmt service
• Open Command Prompt as Administrator
• Run the following commands:
cd C:\Windows\System32\wbem\
for /f %s in ('dir /b *.mof') do mofcomp %s
NOTE: This will take a minute or so to complete.
for /f %s in ('dir /b en-us\*.mfl') do mofcomp en-us\%s
---------------------------------
And it worked! After those commands completed (maybe a minute or two) I was able to use the software to connect to and control the PPA.
Hopefully this helps someone else too!
I purchased a Pegasus Power Box Advance and could only get the software (PPB-Install_v1_17) to recognize the device on 1 of 3 different PCs. All three running Win10 Pro. Unfortunately the PC it worked on is my office desktop. Both my laptop, and the mini-PC I have at my telescope gave the same error when trying to connect to the power box using the app: "Device not found - Cannot discover a known device".
I could tell the PPA was working, because it was powering the mini-PC and my ASI2600MC Pro and ASI174MM Mini. Those cameras even showed up in the device manager. However in the device manager for the laptop the Power Box Advance showed up as an "Other Device" while on the mini-PC is shows up under Ports (COM & LPT) as USB Serial Port (COM5).
I then noticed that when I opened the Pegasus Astro - Pocket Powerbox software and went to the Config tab, selecting a port from the dropdown resulted in the error "An error occurred while querying for devices: Invalid class" so I decided to search for solutions to "Invalid Class" and I hit the jackpot!
I found this:
https://social.technet.microsoft.com/Fo ... powershell
And I followed these steps:
---------------------------------
How to rebuild the WMI repository.
• Disable and stop the winmgmt service
• Remove or rename C:\Windows\System32\wbem\repository
• Enable and start the winmgmt service
• Open Command Prompt as Administrator
• Run the following commands:
cd C:\Windows\System32\wbem\
for /f %s in ('dir /b *.mof') do mofcomp %s
NOTE: This will take a minute or so to complete.
for /f %s in ('dir /b en-us\*.mfl') do mofcomp en-us\%s
---------------------------------
And it worked! After those commands completed (maybe a minute or two) I was able to use the software to connect to and control the PPA.
Hopefully this helps someone else too!