I very recently upgraded the laptop given to me by my employer from Catalina to Big Sur. The next day I started having network connectivity issues. The network would appear connected in System Preferences but no traffic would occur. I rebooted my machine 3 times that day to clear the problem. I contacted my employer's help desk and they suggested resetting the SMC which I did several times but that made no difference. Finally, I noticed in Activity Monitor that when the network stopped working com.sophos.endpoint.networkextension was using 100% CPU or more. I then performed a kill -9 on that process and the network instantly came back to life. The problem is that sometimes the process will restart and go back to using 100% CPU and kill the network again while other times it may be OK for several hours. In any case I am finding I have to kill the process at least a half a dozen times a day.
I noticed that a similar problem was reported during the EAP period for 10.0.3 but supposedly it was fixed.
Is anyone else experiencing this? Any ideas as to what might cause it?
HI there,Thank you for reaching us, may we know what version of endpoint currently running on your system?
I see that https://community.sophos.com/intercept-x-endpoint/f/discussions/129873/com-sophos-endpoint-networkextension-constant-cpu-usage which reports the same problem except they are on MacOS Catalina instead of Big Sur.