from Kaspersky- "We apologize for the inconvenience. It does appear that there was a hiccup with an Update pushed out causing Windows XP machines to lose internet connectivity. An update was just released that should address the issue, what I will need you to do is: To get XP users internet connectivity (temporarily), please disable the Web AV component of your protection policy for your managed computers. After doing so; In Security Center (or Admin Kit): 1.) Go to the Repositories section >> (Right click) Updates >> All Tasks >> Clear updates repository. 2.) Go to the Repositories section >> (Right click) Updates >> Download Updates After taking this step, please run your group Update task for Managed Computers. After the update has been pushed to your workstations, please re-enable your Web AV component in your protection policy. This should resolve the issue. "