后来我换了一个无线路由器,一切就OK了。也许前者和后者之间存在不兼容的问题。然而我无法得到原因。
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~ % uname -a
Linux archlinux 3.17.6-1-ARCH #1 SMP PREEMPT Sun Dec 7 23:43:32 UTC 2014 x86_64 GNU/Linux
~ % ip route
default via 192.168.1.1 dev wlp3s0 metric 303
192.168.1.0/24 dev wlp3s0 proto kernel scope link src 192.168.1.20 metric 303
~ % cat /etc/resolv.conf
# Generated by resolvconf
nameserver 192.168.1.1
~ % lspci -vvv
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723AE PCIe …
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