High and unstable latency

Hello

Have a problem. My latency is unstable, it jump up and down. When i test my speed at speedtest.net, average latency on country servers are 20ms, outside country 40-55ms. But when i play online game (BF2142) latency goes from 50-200ms, It can be, because for gameplay needet TCP/UDP ports ar closed by ISP? If ISP will open needed ports, it will help me to solve this problem? :slight_smile: Thanks

Best Regards.

are you limiting your bandwidth?..

Nop, There is no limits. Even ISP hasn’t set limit to me.

Problem solved. Atheros [censored]