nRF Connect for Desktop cannot see DK's or PDK

[Johannes]

nRF Connect used to work fine. After the 3.8 update it could no longer see devices. At that point a re-install helped.

Then after the 3.9 update it stopped working again. Multiple re-install could not fix it. At the same time nrfjprog has no issues. And the Segger IDE and Segger tools also have no problem

I would also like to note that it work fine on another computer (laptop) But It cannot find the devices on my may desktop machine.

Any help on how I can restore the connectivity would be greatly appreciated.

[Johannes]

I meant that it cannot see DK's and PPK2

[Marte Myrvold]

Hi,

Our developers are aware of this issue, and they are working on fixing it. 

A temporary workaround is to downgrade the JLink driver to v6.88a. It can be downloaded from here: https://www.segger.com/downloads/jlink.

If you are still experiencing this issue after downgrading JLink, you can downgrade nRF Connect for Desktop to v3.7 and install app versions compatible with 3.7:

1. Download the latest 3.7 version of nRF Connect for Desktop from https://www.nordicsemi.com/Products/Development-tools/nRF-Connect-for-desktop/Download?lang=en#infotabs (for macOS this is 3.7.2, for Windows and Linux 3.7.1, because 3.7.2 was not needed and not released for these).
2. After starting nRF Connect for Desktop 3.7 a prompt will come up about the 3.8 upgrade. Click “No” on this.
3. In the Settings, click on “Add source”, enter the URL http://developer.nordicsemi.com/.pc-tools/nrfconnect-apps/3.7-apps/apps.json and click “Add”.
4. Back in the list of all apps, all apps should show up twice now, one with “official” below them and one with “3.7 compatible apps” below them. If you want to hide the incompatible versions, click on “Filter” and deselect “Official”.
5. Install the apps you need in the old versions and use them.

Best regards,

Marte