Posted 25 November 2012 - 07:03 PM
Your DSL and analog phone service definitely use the same phoneline unless you pay for an extra dryloop. Your speed will not effect your lag at all unless your game is using more speed than you have. A 5Mbps connection will definitely be good enough for almost every game. Your new ISP probably gives you more latency than what you're used to. Latency (ping) is completely inevitable. The electrical signals that are your internet connection can only travel at the speed of light. Every time your connection goes through an ISP's router or switch, you get even more delay in the signal transmission. When you tested with speedtest.net it showed 80ms. That's already pretty laggy. I'm on a DSL connection of about the same speed and I get a ping of about 13ms. Your router and modem shouldn't cause anymore than 1ms of extra latency unless they're broken, no matter how cheap they are. I think you basically need a better ISP. Also, the 80ms ping is to the nearest test server. Speedtest.net has servers in almost every major city and most likely has one near you. The game however most likely only has 1 or 2 servers in the U.S. and maybe one in Europe and Asia. So the servers are going to be further away from you and you're going to get a lot more lag.
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