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nRF Connect (PC version) gets sluggish, svchost.exe CPU load increases

I am using nRF Connect (PC version) a lot to debug my application. I am using a PCA10040 board as dongle and everything works fine most of the time. But after I keep the nRF Connect application running for a long time (an hour or maybe more) the fan on my laptop is spinning up. In Process Explorer I can see the svchost.exe process is keeping one CPU core busy and after a while the responsiveness is becoming sluggish. Finally when I press the Start scan button I only get the Windows spinning waiting symbol.

If I close nRF Connect I see the svchost.exe load dropping down to 0% and I can reopen nRF Connect and start over. I am now doing this a couple of times per day and it is quite annoying.

It feels like some internal structure in the program is becoming too large after a while. I don't think it has to do with the logfile size, my last one was around 600 kB.

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  • Hi again,

    Just talked to the nRF Connect for Desktop team and we have not seen this issue before. We would like to try to reproduce on our end and would appreciate it if you could elaborate on the following:

    1. Which app are you using within nRF Connect?
    2. What are you using the app for?
    3. Which service is consuming resources? 

    You can find details about services by right-clicking on svchost.exe:

    Ketil

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