Forum Discussion

Victor1989's avatar
Victor1989
Copper Contributor
Aug 09, 2022

device misconfiguration issue ( Impaired communications No sensor data )

Hi all,

having issue in MDE  environment where many of my devices ( around 150 ) in environment showing misconfigured , their health status showing impaired communication , No Sensor Data . 

 

i have gone through troubleshooting docs , that points to run client analyzer on machine. 

as no of devices are many , 

looking for suggestions.

  • Have you run the MDECLient analyzer at all ? Even on a few ?

    It will be the first thing MS ask you to do on any case , and really helps pinning these issues down. More often than not it is a Firewall rule problem in my experience, they need A LOT of rules, and really important, no HTTPS inspection on many of them. That breaks all sort of communications.
  • We're having this problem too. Approximately 40% of the environment. Defender is still running locally, but not responding back to the portal (meaning no alerts). Had a support ticket open over a week and not getting anywhere with that.
  • Groove200's avatar
    Groove200
    Brass Contributor
    Have you run the MDECLient analyzer at all ? Even on a few ?

    It will be the first thing MS ask you to do on any case , and really helps pinning these issues down. More often than not it is a Firewall rule problem in my experience, they need A LOT of rules, and really important, no HTTPS inspection on many of them. That breaks all sort of communications.

Resources