sophos clients win7 no internet this AM feb 5

Question

hey i have a few workstations today that spontaneously around 930am - 10am lost their ability to connect to the network. i also notice that the sophos endpoint icon has changed today from what it was last week. The affected terminals all seem to be win7 but i cant find any other similarities. 
 
 is this a known issue? 
 
 last update posted to the machine was 10.8.1 VE3.71.0 Update Successful

Gowtham Mani · Answer

Hi givemecontrol & everyone, 
 Please follow the below mentioned KBA for more details as it would be updated periodically on the reported issue. 
 Malicious Traffic Detection causing network issues on Windows 7 machines

Shamus Ford · Answer

To recover machines that are already affected you will need to disconnect the network from them, log in as either a local user or into safe boot. Open Sophos UI and enter the Tamper protection Pin and turn off the Malicious Traffic Detection under Runtime Protection and reboot. Then login as normal and turn network back on. (making sure KB 131685 workaround is already done)