我的电脑有问题，它通过 wifi 连接，但浏览器无法加载网页。在 Windows 7 上问题仍然存在，所以这可能是硬件问题。我该如何检查？连接到同一网络的其他无线设备工作正常。我已格式化电脑并重置路由器。
路由器型号：sitecom N300 x4 电脑：acer aspire 5750g（ubuntu 15.04 / windows 7）
如果我使用有线连接（以太网），它运行良好。
以下是一些信息：
*-network
description: Wireless interface
product: BCM43227 802.11b/g/n
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlan0
version: 00
serial: cc:af:78:00:a9:48
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=wl0 driverversion=6.30.223.248 (r487574) ip=192.168.0.105 latency=0 multicast=yes wireless=IEEE 802.11abg
resources: irq:17 memory:d1900000-d1903fff
ifconfig：
eth0 Link encap:Ethernet IndirizzoHW b8:70:f4:a7:06:e1
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:37349 errors:0 dropped:0 overruns:0 frame:0
TX packets:27138 errors:2 dropped:0 overruns:0 carrier:0
collisioni:0 txqueuelen:1000
Byte RX:49011831 (49.0 MB) Byte TX:2794589 (2.7 MB)
Interrupt:16
lo Link encap:Loopback locale
indirizzo inet:127.0.0.1 Maschera:255.0.0.0
indirizzo inet6: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:4401 errors:0 dropped:0 overruns:0 frame:0
TX packets:4401 errors:0 dropped:0 overruns:0 carrier:0
collisioni:0 txqueuelen:0
Byte RX:429507 (429.5 KB) Byte TX:429507 (429.5 KB)
wlan0 Link encap:Ethernet IndirizzoHW cc:af:78:00:a9:48
indirizzo inet:192.168.0.105 Bcast:192.168.0.255 Maschera:255.255.255.0
indirizzo inet6: fe80::ceaf:78ff:fe00:a948/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:16057 errors:0 dropped:0 overruns:0 frame:60879
TX packets:12755 errors:0 dropped:0 overruns:0 carrier:0
collisioni:0 txqueuelen:1000
Byte RX:17888304 (17.8 MB) Byte TX:1376251 (1.3 MB)
Interrupt:17
路线-n
Tabella di routing IP del kernel
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.0.1 0.0.0.0 UG 1024 0 0 wlan0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 wlan0
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0
ping -c 4 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=4 ttl=54 time=48.3 ms
--- 8.8.8.8 ping statistics ---
4 packets transmitted, 1 received, 75% packet loss, time 3022ms
rtt min/avg/max/mdev = 48.323/48.323/48.323/0.000 ms
ping -c google.com
PING google.com (173.194.113.232) 56(84) bytes of data.
64 bytes from mil01s18-in-f8.1e100.net (173.194.113.232): icmp_seq=1 ttl=55 time=45.7 ms
64 bytes from mil01s18-in-f8.1e100.net (173.194.113.232): icmp_seq=3 ttl=55 time=46.3 ms
64 bytes from mil01s18-in-f8.1e100.net (173.194.113.232): icmp_seq=4 ttl=55 time=46.5 ms
--- google.com ping statistics ---
4 packets transmitted, 3 received, 25% packet loss, time 7066ms
rtt min/avg/max/mdev = 45.732/46.236/46.598/0.367 ms
编辑：如果我不打开 YouTube，连接会更稳定，并且会保持连接很长时间，但如果我打开视频或类似的东西，它就会停止加载新页面。
答案1
如果此问题在 Windows 中仍然存在，则不是 Ubuntu 问题。这要么是硬件问题，要么是无线环境问题，或者只是信号强度低。
尝试靠近路由器。此外，如果附近有太多无线网络使用该信道，则更改路由器设置中的信道也可能会解决该问题。