我的网络由房东提供。大约一个月前，每间公寓都有单独的路由器和互联网连接，运行良好。然而，最近，我的房东换成了康卡斯特的“商务级(?)”网络，从那时起，我就定期收到令人难以置信的高我的计算机和康卡斯特路由器之间的延迟。
我的计算机通过以太网电缆连接到运行 DD-WRT 的路由器（静态 IP 为 192.168.1.6），该路由器以无线桥接模式连接到主康卡斯特路由器（192.168.1.1）。
大约 50%-60% 的时间里，我的 PC 和 192.168.1.1 之间的延迟在个位数或两位数范围内，互联网运行正常。其余时间，延迟会跳升至 >10000 毫秒，保持一两分钟，然后回落。例如：
64 bytes from 192.168.1.1: icmp_seq=14068 ttl=64 time=21836 ms
64 bytes from 192.168.1.1: icmp_seq=14069 ttl=64 time=20847 ms
64 bytes from 192.168.1.1: icmp_seq=14070 ttl=64 time=20789 ms
64 bytes from 192.168.1.1: icmp_seq=14071 ttl=64 time=21856 ms
64 bytes from 192.168.1.1: icmp_seq=14072 ttl=64 time=21521 ms
64 bytes from 192.168.1.1: icmp_seq=14073 ttl=64 time=20515 ms
64 bytes from 192.168.1.1: icmp_seq=14074 ttl=64 time=19540 ms
64 bytes from 192.168.1.1: icmp_seq=14075 ttl=64 time=19271 ms
64 bytes from 192.168.1.1: icmp_seq=14076 ttl=64 time=20779 ms
64 bytes from 192.168.1.1: icmp_seq=14077 ttl=64 time=20974 ms
64 bytes from 192.168.1.1: icmp_seq=14078 ttl=64 time=20058 ms
64 bytes from 192.168.1.1: icmp_seq=14101 ttl=64 time=875 ms
64 bytes from 192.168.1.1: icmp_seq=14102 ttl=64 time=22.1 ms
64 bytes from 192.168.1.1: icmp_seq=14103 ttl=64 time=17.7 ms
64 bytes from 192.168.1.1: icmp_seq=14104 ttl=64 time=1435 ms
64 bytes from 192.168.1.1: icmp_seq=14105 ttl=64 time=667 ms
64 bytes from 192.168.1.1: icmp_seq=14106 ttl=64 time=40.1 ms
64 bytes from 192.168.1.1: icmp_seq=14107 ttl=64 time=201 ms
64 bytes from 192.168.1.1: icmp_seq=14108 ttl=64 time=9.89 ms
64 bytes from 192.168.1.1: icmp_seq=14109 ttl=64 time=2843 ms
64 bytes from 192.168.1.1: icmp_seq=14112 ttl=64 time=2264 ms
64 bytes from 192.168.1.1: icmp_seq=14115 ttl=64 time=1664 ms
64 bytes from 192.168.1.1: icmp_seq=14116 ttl=64 time=810 ms
64 bytes from 192.168.1.1: icmp_seq=14117 ttl=64 time=72.8 ms
64 bytes from 192.168.1.1: icmp_seq=14118 ttl=64 time=133 ms
64 bytes from 192.168.1.1: icmp_seq=14119 ttl=64 time=11.7 ms
64 bytes from 192.168.1.1: icmp_seq=14120 ttl=64 time=25.1 ms
64 bytes from 192.168.1.1: icmp_seq=14121 ttl=64 time=18.3 ms
64 bytes from 192.168.1.1: icmp_seq=14122 ttl=64 time=152 ms
64 bytes from 192.168.1.1: icmp_seq=14123 ttl=64 time=10.0 ms
64 bytes from 192.168.1.1: icmp_seq=14124 ttl=64 time=108 ms
64 bytes from 192.168.1.1: icmp_seq=14125 ttl=64 time=17.7 ms
64 bytes from 192.168.1.1: icmp_seq=14126 ttl=64 time=171 ms
64 bytes from 192.168.1.1: icmp_seq=14127 ttl=64 time=32.8 ms
64 bytes from 192.168.1.1: icmp_seq=14128 ttl=64 time=706 ms
64 bytes from 192.168.1.1: icmp_seq=14129 ttl=64 time=17.6 ms
64 bytes from 192.168.1.1: icmp_seq=14130 ttl=64 time=42.0 ms
64 bytes from 192.168.1.1: icmp_seq=14131 ttl=64 time=30.3 ms
64 bytes from 192.168.1.1: icmp_seq=14132 ttl=64 time=37.7 ms
64 bytes from 192.168.1.1: icmp_seq=14133 ttl=64 time=40.0 ms
64 bytes from 192.168.1.1: icmp_seq=14134 ttl=64 time=33.8 ms
64 bytes from 192.168.1.1: icmp_seq=14135 ttl=64 time=20.1 ms
64 bytes from 192.168.1.1: icmp_seq=14136 ttl=64 time=407 ms
64 bytes from 192.168.1.1: icmp_seq=14137 ttl=64 time=23.9 ms
64 bytes from 192.168.1.1: icmp_seq=14139 ttl=64 time=80.9 ms
64 bytes from 192.168.1.1: icmp_seq=14140 ttl=64 time=51.9 ms
64 bytes from 192.168.1.1: icmp_seq=14141 ttl=64 time=15.8 ms
64 bytes from 192.168.1.1: icmp_seq=14142 ttl=64 time=31.7 ms
64 bytes from 192.168.1.1: icmp_seq=14143 ttl=64 time=11.9 ms
64 bytes from 192.168.1.1: icmp_seq=14146 ttl=64 time=878 ms
64 bytes from 192.168.1.1: icmp_seq=14147 ttl=64 time=21.7 ms
64 bytes from 192.168.1.1: icmp_seq=14148 ttl=64 time=14.5 ms
64 bytes from 192.168.1.1: icmp_seq=14149 ttl=64 time=400 ms
64 bytes from 192.168.1.1: icmp_seq=14150 ttl=64 time=42.2 ms
64 bytes from 192.168.1.1: icmp_seq=14151 ttl=64 time=1434 ms
64 bytes from 192.168.1.1: icmp_seq=14153 ttl=64 time=805 ms
64 bytes from 192.168.1.1: icmp_seq=14154 ttl=64 time=231 ms
64 bytes from 192.168.1.1: icmp_seq=14155 ttl=64 time=19.0 ms
64 bytes from 192.168.1.1: icmp_seq=14156 ttl=64 time=1206 ms
64 bytes from 192.168.1.1: icmp_seq=14157 ttl=64 time=449 ms
64 bytes from 192.168.1.1: icmp_seq=14158 ttl=64 time=1256 ms
64 bytes from 192.168.1.1: icmp_seq=14159 ttl=64 time=275 ms
64 bytes from 192.168.1.1: icmp_seq=14160 ttl=64 time=977 ms
64 bytes from 192.168.1.1: icmp_seq=14161 ttl=64 time=1220 ms
64 bytes from 192.168.1.1: icmp_seq=14162 ttl=64 time=974 ms
64 bytes from 192.168.1.1: icmp_seq=14163 ttl=64 time=91.0 ms
64 bytes from 192.168.1.1: icmp_seq=14164 ttl=64 time=1716 ms
64 bytes from 192.168.1.1: icmp_seq=14165 ttl=64 time=2175 ms
64 bytes from 192.168.1.1: icmp_seq=14166 ttl=64 time=3899 ms
64 bytes from 192.168.1.1: icmp_seq=14167 ttl=64 time=4102 ms
64 bytes from 192.168.1.1: icmp_seq=14168 ttl=64 time=3203 ms
64 bytes from 192.168.1.1: icmp_seq=14169 ttl=64 time=2198 ms
64 bytes from 192.168.1.1: icmp_seq=14170 ttl=64 time=2025 ms
64 bytes from 192.168.1.1: icmp_seq=14173 ttl=64 time=1773 ms
64 bytes from 192.168.1.1: icmp_seq=14174 ttl=64 time=772 ms
64 bytes from 192.168.1.1: icmp_seq=14175 ttl=64 time=10.0 ms
64 bytes from 192.168.1.1: icmp_seq=14176 ttl=64 time=56.6 ms
64 bytes from 192.168.1.1: icmp_seq=14177 ttl=64 time=1670 ms
64 bytes from 192.168.1.1: icmp_seq=14178 ttl=64 time=689 ms
如果当这些峰值出现时（在同一个房间），我的笔记本电脑也连接到网络，那么笔记本电脑也会受到影响。
我怀疑问题在于以下之一：
我和 AP 之间的物理干扰
我的客户端桥接器和康卡斯特路由器之间发生了某种冲突
我需要向房东报告一些与康卡斯特硬件无关的问题（几周前，由于大楼内有人抱怨网速太快，康卡斯特服务部门已经接到过电话）。
我怎么知道问题出在哪里？