Windows 11 update 25H2

[moonbounce]

This will be a forced update and it will probably throw a wrench into DSDPlus Fastlane, it did on my computer as I can't use DSDPlus Fastlane anymore. When I open FMP24-CC I get an error message that says " RTL SDR device #2 not found? I Googled it and tried all of the suggestions to resolve it but no joy, so it is back to Unitrunker and DSDPlus 1.101 for now, lol.

Microsoft now force upgrades unmanaged Windows 11 24H2 PCs

Starting this week, Microsoft has begun force-upgrading unmanaged devices running Windows 11 24H2 Home and Pro editions to Windows 11 25H2.

www.bleepingcomputer.com

 

[GTR8000]

25H2 is not a new update, it was released to the general public last September and plenty of people are running DSD+ Fast Lane on 25H2 without issue, myself included.

 

[Computrguy]

25H2 is not a new update, it was released to the general public last September and plenty of people are running DSD+ Fast Lane on 25H2 without issue, myself included.

Yep. Using it since June 2025 with DSD+ (I actually just installed DSD+ about a month ago. I'd start looking for a different issue.

 

[RMason]

When I open FMP24-CC I get an error message that says " RTL SDR device #2 not found?

Do you have 2 RTL-SDR devices installed? It sounds like your FMP24-CC.bat contains -i2 - since the error says it is looking for device #2. You can try changing this to -i0 to use the first available device.

  -i0         Use first available RTL SDR device [-i0]
  -i<num>     Use RTL SDR device specified by <num> (1-255)
  -i"<ser>"   Use RTL SDR device with specified serial number string

 

[moonbounce]

I just got this computer about 2wks ago, going from a windows 10 laptop to windows 11 laptop. I was using DSDPlus Fastland with Windows 11 22H2 version and it was working fine. After seeing the article on 25H2 I decided to update my computer, what a mistake.
Anyways, I only use one dongle, I have tried changing the i0 number to 0, 1, and 2, but I get same message. I have to take a mental breather for a while, I will just stick to Unitrunker and DSDPlus 1.101.

 

[maus92]

Does seem like a user configuration error as I run a similar OS version and the latest DSD+FL with no issue. I'd look at how you installed the RTL device driver as a first step as you say this is a new computer.

 

[R0am3r]

@moonbounce - Post your batch file (or your command line script) so we can help you. For the simplest solution, remove the command line switch -i2.

Here is an example batch file:
Start CMD /c dsdplus
Start CMD /c FMP24.exe -o20001 -P0.0 -f151.0100 -b9.5 -g14.4

 

[RMason]

@moonbounce - Post your batch file (or your command line script) so we can help you.

@moonbounce Are you running Fastlane and DSDPlus 1.101 from 2 separate directories? You can successfully launch FMP24 in the Fastlane directory, but not DSDPlus 1.101 directory? Is this correct?

Please post the FMP batch file you are using for both the Fastlane and DSDPlus 1.101.

 

[moonbounce]

@moonbounce Are you running Fastlane and DSDPlus 1.101 from 2 separate directories? You can successfully launch FMP24 in the Fastlane directory, but not DSDPlus 1.101 directory? Is this correct?

Please post the FMP batch file you are using for both the Fastlane and DSDPlus 1.101.

"C:\Users\Anyone\Documents\DSDPlus 2.523 OPP\FMP24-CC.bat"

"C:\Users\Anyone\Documents\DSDPlus 1.101"

They are both in the same directory and I run them both from same directory.

 

[RMason]

"C:\Users\Anyone\Documents\DSDPlus 2.523 OPP\FMP24-CC.bat"

"C:\Users\Anyone\Documents\DSDPlus 1.101"

They are both in the same directory and I run them both from same directory.

Please post the contents of the FMP batch files you are running.

 

[moonbounce]

Please post the contents of the FMP batch files you are running.

FMP24 -rc -i1 -o20001 -P-0.0 -b-12.5 -f866.0875 -g22.9
DSDPlus -r1 -T -E -Pwav -i20001 >>1R-log.txt

 

[RMason]

Anyways, I only use one dongle, I have tried changing the i0 number to 0, 1, and 2, but I get same message.

Are you getting the same message, or does the device number change in the error message change when you change -i<num>?

FMP24 -rc -i1 -o20001 -P-0.0 -b-12.5 -f866.0875 -g22.9

Are getting an error message that says "RTL SDR device #1 not found" with this batch file?

If so, my best guess is that you need to rerun zadig to install the proper driver.

 

[moonbounce]

Are you getting the same message, or does the device number change in the error message change when you change -i<num>?



Are getting an error message that says "RTL SDR device #1 not found" with this batch file?

If so, my best guess is that you need to rerun zadig to install the proper driver.

Yes, and I have reinstalled the driver with Zadig which solved one problem but now 1r doesn't seem to be getting signal from FMP24-cc? Anyways I am going to stick with Unitrunker and DSD 1.101, thanks for the help.

 

[moonbounce]

Don't ask my how but I got it back up and running, only thing is I can't seem to fix settings, it should be 12.5kh but it is showing in FMP24 5kh. I have changed it in cfg file but it doesn't change it when FMP24 is in use, but it still working as far as I can tell.