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Router 与 macbook air

时间：2014-04-17

来源：互联网

之前听讲过有些router会与mba crash, 可否分享原因和解决办法？

我的router是用asus rt-n12hp的，当router没有连接desktop时，我部mba就连wifi连得不错的（速度normal)。但是，当router 有连接router的时候，mba个wifi就会很慢很慢，接近用不到的慢。。。

是我的router坏了？或是mba出现问题？或是其他问题？

谢谢！！

作者: wilsonlw 发布时间: 2014-04-17

"有些router会与mba crash"，只出现在屎 router。有没有用 Mac 出问题在公司，campus，Apple Store，机场，码头... ???

Asus rt-n12hp => 300M 2.4GHz wireless, 10/100 wired
Mid 2013 MBA => 867M dual channel wireless, 1000 wired

1. 中下价 router 配唔起 2011 打后的 Mac
2. 除了上述公布数字，中下价的将货就价，很多 chips 都是次级产品。Radio power, noise filter, reception, ram buffer, processor…. 都系差DD。复杂环境下便多问题，甚么 lab test 都不能表达这情况。
3. 可能你个 router 不适当处理 wired + wireless traffic。但始终点搅都唔会快得去边。

解决方法 :
买只 AC router，除 Missing-Link 外。
(only apply to PC user) 试下 update BIOS。

作者: 6674 发布时间: 2014-04-17

有几多格wifi、Excellent/Good、Transmit Rate 只反映小部分真相。
Test wifi。可协助摆位，set channel。
Signal value 越接近零，便越好。一般有 -45 便不错，-40 极好。
Signal Noise Ratio 越大越好。

1. built-in
Option Click Wifi icon, open Wifi Diagnostics, Then goto menu Utilities

2. i-Stumbler beta, free

3. Wifi Scanner, paid app from App Store. 介面几好睇。

作者: 6674 发布时间: 2014-04-17

引用:原帖由 6674 於 2014-4-10 07:45 AM 发表
有几多格wifi、Excellent/Good、Transmit Rate 只反映小部分真相。
Test wifi。可协助摆位，set channel。
Signal value 越接近零，便越好。一般有 -45 便不错，-40 极好。
Signal Noise Ratio 越大越好。

1. ...

Thanks for your detailed reply!! Let me try to do some tests when I get home!

Actually I have been used the router for a while like six months and it is completely fine with wired and wireless traffic until these few days. Is there any possibility that some settings are wrong or it's just too cheap of my router?

Thanks!

作者: wilsonlw 发布时间: 2014-04-17

I don't know, may be :

Restart your router,
Change to WPA2 if you didn't,
Use Apple's Wifi Diagnostics recommend channel, or manual select a channel less crowd and weaker. Example, on #3 graph , 2.4 GHz Channel 1 & 2 overall are best choice.

The reasons to move to 5GHz:
less crowd
most electric appliance(microwave, home wireless phone, lamp, USB 3.0, etc) do not generate interference and noise in this area.
5GHZ cannot not reach far distance, so your neighbour less likely to affect you.

作者: 6674 发布时间: 2014-04-17

我部 200 蚊有找0既 buffalo, 之前一直只系用响 share wifi 俾部 lenovo 同 ipad

但三个星期前新入门0既 rmbp, 都完全无问题, 无做过任何新setting

作者: ivanbbq 发布时间: 2014-04-17

A few hundred bucks router and rMBP are mismatched.

Under the hood, rMBP has 3 antenna, a Broadcom BCM4360. That is to say, 1.3 Gbps PHY rate performance.

作者: 6674 发布时间: 2014-04-17

Mac 同好多 router 8字唔夹系好无奈o既事实