求助,,ping外网900多.掉包严重..请求高手解决

msntop

架构是这样的..4M宽带.中兴W300,外接一个24口交换机.一共6个用户.

有5台是接交换机的.有一台是接W300.之前用WR841N路由时,ping值不高

现在献上Ping测试
Set PR mark for socket 0x10 = 239
Set PR mark for socket 0x10 = 239
PING www.l.google.com (64.233.189.104): 64 data bytes
72 bytes from 64.233.189.104: icmp_seq=0 ttl=242 time=910.0 ms
72 bytes from 64.233.189.104: icmp_seq=1 ttl=242 time=640.0 ms
--- www.l.google.com ping statistics ---
3 packets transmitted, 2 packets received, 33% packet loss
round-trip min/avg/max = 640.0/775.0/910.0 ms