It seems to be an internet issue : startup programs that run in the background hog internet every 10 seconds during a couple of seconds.   Stable (?) solution : Test your ping open up command prompt (cmd + enter) type for example  c:\>ping google.com -t look for timeouts, that is times > average time In my case, every 10-11 seconds, "times" were about 2000 ms (2s), instead of 50 ms.   Identify which is/are the hogging program(s) and close them Let your ping test run. Open the task m