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Showing posts from October, 2016

Ping spikes on Mac OS X

Problem: After (I think) an update my Mac began to show a strange pattern of network latency: A ping to my router would show a string of 1ms trip times punctuated periodically by a cluster of 400-1000ms latencies. I first realized something was wrong when I was playing counter strike and my ping would go crazy - on a server I frequent my typical ping used to be 20ms, but now it would register as 190ms, 400ms and so on. I could verify this was not a internet provider issue by pinging my router from a different computer and getting a steady string of 1ms latencies. The solution was remarkably hard to find even though it seemed to be a common problem faced mostly by Mac users. A common response was to turn off anti-virus software, and I knew this was not the correct answer. Solution: From the thread here (look for the answer by "eyepaq") it seems to be a bad setting or combination of settings in network preferences which can be reset by deleting the file "/Library/Pref