| 前幾天安裝號稱要解決 WI-FI 問題的 Mac OS X Yosemite 10.10.1 今天卻出現了 10.10 很多反應會降速的問題 而我遇到的 是降到不能使用的速度 因為網頁無法出現 現象我可以重現了，給其他要更新的人參考！ 我不賣關子了 插上我的 1TB 2.5" USB 3.0 隨身碟 插上後 立刻降速 如下 Request timeout for icmp_seq 233 Request timeout for icmp_seq 234 64 bytes from 192.168.1.1: icmp_seq=127 ttl=64 time=108528.947 ms 64 bytes from 192.168.1.1: icmp_seq=128 ttl=64 time=107525.492 ms 64 bytes from 192.168.1.1: icmp_seq=129 ttl=64 time=106524.798 ms Request timeout for icmp_seq 238 Request timeout for icmp_seq 239 Request timeout for icmp_seq 240 64 bytes from 192.168.1.1: icmp_seq=130 ttl=64 time=111516.294 ms 64 bytes from 192.168.1.1: icmp_seq=131 ttl=64 time=110515.982 ms Request timeout for icmp_seq 243 Request timeout for icmp_seq 244 Request timeout for icmp_seq 245 Request timeout for icmp_seq 246 Request timeout for icmp_seq 247 Request timeout for icmp_seq 248 Request timeout for icmp_seq 249 64 bytes from 192.168.1.1: icmp_seq=132 ttl=64 time=118520.846 ms Request timeout for icmp_seq 251 64 bytes from 192.168.1.1: icmp_seq=133 ttl=64 time=119517.241 ms Request timeout for icmp_seq 253 Request timeout for icmp_seq 254 拔掉 1TB 2.5" 隨身碟 又正常 Last login: Mon Nov 24 13:36:39 on console Bing-MacBookPro:~ bing$ ping 192.168.1.1 PING 192.168.1.1 (192.168.1.1): 56 data bytes 64 bytes from 192.168.1.1: icmp_seq=0 ttl=64 time=191.449 ms 64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=239.257 ms 64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=1.447 ms 64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=1.471 ms 64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=8.864 ms 64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=76.251 ms 64 bytes from 192.168.1.1: icmp_seq=6 ttl=64 time=169.301 ms 64 bytes from 192.168.1.1: icmp_seq=7 ttl=64 time=1.947 ms 64 bytes from 192.168.1.1: icmp_seq=8 ttl=64 time=56.071 ms 64 bytes from 192.168.1.1: icmp_seq=9 ttl=64 time=98.423 ms 64 bytes from 192.168.1.1: icmp_seq=10 ttl=64 time=2.096 ms 64 bytes from 192.168.1.1: icmp_seq=11 ttl=64 time=2.944 ms 64 bytes from 192.168.1.1: icmp_seq=12 ttl=64 time=4.783 ms 64 bytes from 192.168.1.1: icmp_seq=13 ttl=64 time=1.670 ms c64 bytes from 192.168.1.1: icmp_seq=14 ttl=64 time=2.181 ms 64 bytes from 192.168.1.1: icmp_seq=15 ttl=64 time=1.912 ms 插上立刻降速 這是什麼鬼問題啊！？電源管理問題？ 64 bytes from 192.168.1.1: icmp_seq=458 ttl=64 time=3.986 ms 64 bytes from 192.168.1.1: icmp_seq=459 ttl=64 time=2.546 ms 64 bytes from 192.168.1.1: icmp_seq=460 ttl=64 time=4029.556 ms 64 bytes from 192.168.1.1: icmp_seq=461 ttl=64 time=3024.562 ms 64 bytes from 192.168.1.1: icmp_seq=462 ttl=64 time=4822.433 ms 64 bytes from 192.168.1.1: icmp_seq=463 ttl=64 time=3820.944 ms 64 bytes from 192.168.1.1: icmp_seq=464 ttl=64 time=2818.675 ms 64 bytes from 192.168.1.1: icmp_seq=465 ttl=64 time=1814.872 ms 64 bytes from 192.168.1.1: icmp_seq=466 ttl=64 time=815.043 ms 64 bytes from 192.168.1.1: icmp_seq=467 ttl=64 time=7424.592 ms 64 bytes from 192.168.1.1: icmp_seq=468 ttl=64 time=6421.728 ms 64 bytes from 192.168.1.1: icmp_seq=469 ttl=64 time=5417.156 ms 交叉測試左右兩邊的 USB 3.0, 只有右邊的 USB 3.0, 插上硬碟會立即降速到網路不通！不管有沒有插電源！ 太誇張了！我在 10.10 兩邊都亂插，都沒事說！ 還好我還找出 workaround 給各位要更新的參考看看囉！ 可能是這版的電源管理有問題！ 我的機器是 MacBookPro Retina 2014 mid ------ 11/26 更新：應該是 USB 3.0 和 2.4 GHz WIFI 衝突，家裡是 5 Ghz 難怪沒事，手機熱點和 USB 3.0 裝置離遠一點囉！ USB 3.0* Radio Frequency Interference Impact on 2.4 GHz Wireless Devices |
reayhersu 發表於 2014-11-26 05:40
受教了，感謝！
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