hvp病毒13阳性:请大家帮我诊断我网吧的网络问题出在哪儿？

症状是下载速度缓慢，连接测速网站www.linkwan.com测速，速度缓慢，而我另一家网吧的速度会高出好几倍的连接速度．

经过测试，ping内网网关速度正常：

Pinging 192.168.1.1 with 32 bytes of data:

Reply from 192.168.1.1: bytes=32 time<1ms TTL=64

......

Reply from 192.168.1.1: bytes=32 time<1ms TTL=64

Reply from 192.168.1.1: bytes=32 time<1ms TTL=64

Ping statistics for 192.168.1.1:

Packets: Sent = 235, Received = 235, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 0ms, Maximum = 0ms, Average = 0ms

Control-C

ping外网网关速度异常，而且经常掉包：

Pinging 61.157.131.33 with 32 bytes of data:

Reply from 61.157.131.33: bytes=32 time=4ms TTL=254

......
Reply from 61.157.131.33: bytes=32 time=13ms TTL=254

Reply from 61.157.131.33: bytes=32 time=4ms TTL=254

Reply from 61.157.131.33: bytes=32 time=4ms TTL=254

Reply from 61.157.131.33: bytes=32 time=2213ms TTL=254

Reply from 61.157.131.33: bytes=32 time=24ms TTL=254

Reply from 61.157.131.33: bytes=32 time=5ms TTL=254

......

Request timed out.

Reply from 61.157.131.33: bytes=32 time=5ms TTL=254

Reply from 61.157.131.33: bytes=32 time=8ms TTL=254

Ping statistics for 61.157.131.33:

Packets: Sent = 253, Received = 248, Lost = 5 (1% loss),

Approximate round trip times in milli-seconds:

Minimum = 4ms, Maximum = 2398ms, Average = 57ms

Control-C

ping外网DNS服务器速度正常，但是会掉包，频率与ping外网网关掉包频率大体一致：

Pinging 61.139.2.69 with 32 bytes of data:

Reply from 61.139.2.69: bytes=32 time=6ms TTL=247

Reply from 61.139.2.69: bytes=32 time=7ms TTL=247

Reply from 61.139.2.69: bytes=32 time=7ms TTL=247

Reply from 61.139.2.69: bytes=32 time=7ms TTL=247

Reply from 61.139.2.69: bytes=32 time=6ms TTL=247

Reply from 61.139.2.69: bytes=32 time=7ms TTL=247

Reply from 61.139.2.69: bytes=32 time=7ms TTL=247

Reply from 61.139.2.69: bytes=32 time=7ms TTL=247

Reply from 61.139.2.69: bytes=32 time=6ms TTL=247

......

Reply from 61.139.2.69: bytes=32 time=6ms TTL=247

Reply from 61.139.2.69: bytes=32 time=6ms TTL=247

Reply from 61.139.2.69: bytes=32 time=6ms TTL=247

Reply from 61.139.2.69: bytes=32 time=6ms TTL=247

Reply from 61.139.2.69: bytes=32 time=20ms TTL=247

Reply from 61.139.2.69: bytes=32 time=6ms TTL=247

Reply from 61.139.2.69: bytes=32 time=7ms TTL=247

Reply from 61.139.2.69: bytes=32 time=7ms TTL=247

Ping statistics for 61.139.2.69:

Packets: Sent = 235, Received = 232, Lost = 3 (1% loss),

Approximate round trip times in milli-seconds:

Minimum = 6ms, Maximum = 20ms, Average = 6ms

Control-C

我已经用两个路由器分别试过了，情况都是这样。而且我的网吧交换机全是新买的——华为3com，网线也是重新买网线新布的——大唐电信，请大家帮我分析一下。

问题会不会出在我的光纤收发器上？还是电信机房有人捣鬼？