WiFi彻底改变了我们的生活方式，并消除了过去到处都有的（大部分）电线。这并不意味着WiFi也不会令人难以置信地令人沮丧。
有时这只是信号表上没有足够的条的问题。在其他时候，信号似乎很强，但连接工作不正常。
如果您无法获得良好的WiFi性能，也许这些热门技巧之一将带回互联网的优势。
绘制 WiFi 薄弱环节
无线电波和光都是同一电磁波谱的一部分。唯一真正的区别是我们的眼睛对无线电波不敏感，所以我们看不到它们。但是，了解无线电波和光是同一件事有助于理解为什么您在某些地方没有获得良好的信号。
想象一下(Imagine)，你在房间里放了一盏全向灯。房间的某些部分将被照亮，而某些部分将处于阴影中。当光线照射到无法通过的材质时会产生阴影。有些材料反射光，有些材料吸收或散射光，无线电也不例外。
大多数材料可以让无线电直接通过，其他材料会吸收很多但不是全部，其他材料会反射它。您可以使用WiFi扫描智能手机应用程序来测量您家中各个位置的WiFi信号强度。这可以帮助您发现盲点，然后尝试找出可能干扰信号的因素。
然后，您可以移除堵塞物，自己移动到不同的位置，或者尝试以下其他一些技巧。WiFi Analyzer是一款具有魅力的应用程序，因此这是一个很好的起点。
消除干扰
WiFi使用复杂的数字无线电，它可以很好地抵抗来自其他也产生无线电信号的设备的随机干扰。但是，您可能处于发出无线电波的范围之内，这些无线电波的频率和功率正好适合阻止或削弱您的WiFi连接。
这可能是无线电遥控玩具或带有空调电机的机器，它们离路由器或接收设备太近。使用排除过程来关闭或移动您可能怀疑有无线电干扰的设备。
换个频道
WiFi被分成不同的通道，这允许同一频段上的两个设备在不相互干扰的情况下运行。通常，现代路由器会选择一个清晰的通道，但您可能会遇到冲突。例如，您邻居的新路由器可以设置为您正在使用的路由器。
这很容易检查和修复。使用WiFi Analyzer等应用程序检查您所在位置的其他(WiFi Analyzer)WiFi路由器正在使用哪些频道。然后通过浏览器登录到路由器的界面，并将其频道设置更改为其他人正在使用的频道。
如果它已设置为特定频道，您可能希望将该设置更改为自动。
切换到 2.4Ghz 频段
许多现代路由器都是“双频”的，将以 2.4Ghz 和 5Ghz 运行。2.4Ghz 频段较慢，但范围更好。通常设备和路由器会自动管理哪个频段最好。
但是，您可以尝试将路由器切换为仅使用 2.4Ghz 频段，看看这是否会改善您较差的信号强度。如果是这样，则可能是距离问题，或者仅仅是材料阻碍了设备和路由器之间的 5Ghz 频段。
当然，我们不想对所有事情都使用慢速频段。因此，如果强制 2.4Ghz 频段有效，您需要做几件事中的一件。许多双频路由器实际上提供了两个独立的WiFi SSID——(WiFi SSIDs – one)每个频段一个。如果是这种情况，请确保无法接收 5Ghz 频段的设备连接到正确的设备。
您还可以在自己的设置中将设备设置为 2.4Ghz 频段，确保它只连接到更强的信号，而不会影响其他任何东西。
打开传输功率
在您的路由器设置中，应该有一个与信号的传输功率相关的设置。这通常称为Tx 功率(Tx power)或类似名称，但因型号而异。
如果还没有，请将其设置为 100%。这应该会显着提高范围和信号强度。
使用外部天线
如果您的路由器属于使用内部天线的类型，您可能需要考虑添加外部天线以获得更好的范围和信号性能。请参阅手册以查看您的模型是否确实具有使用外部天线的能力。
您可以从大多数在线零售商处以便宜的价格购买它们，然后将它们拧入路由器背面的正确连接器中。它可能不如内部天线阵列优雅，但绝对更有效！
调整你的天线
如果您的路由器上有外部天线，您可能需要尝试调整它们。如果他们可以延长，让他们更长。旋转它们并将它们指向特定方向也会改变WiFi“气泡”的形状，这可能有助于消除死角。尽管(Albeit)有创造新的风险。
如果它可以让您将WiFi(WiFi)带到您需要的地方，同时将其从不需要的地方带走，那这可能是正确的解决方案。
移动你的路由器
当然，一种简单的解决方案可能是简单地移动整个路由器。将其放置在更中心的位置可以确保所有设备都在其信号范围内。它也可能处于具有大量无线电阻挡材料的位置。
获取扩展器或中继器
这种方法具有较大的成本影响，但却是扩大WiFi占用空间的最简单方法。您可以购买可以扩展路由器覆盖范围的设备，这是大家庭唯一真正的解决方案。
WiFi 扩展器(WiFi extenders)放置在路由器范围的边缘并充当信号中继器，在原始区域附近添加另一个WiFi区域。(WiFi)电力线延长器特别有用。它们通过您家中的电线发送网络信号，然后在一端创建一个WiFi热点。(WiFi)
您需要将路由器和扩展器放在同一电路上才能工作，但这意味着不需要以太网电缆，您可以将WiFi扩展到电源线到达的任何地方。
购买不同的路由器
这是你能做的最激烈的事情，但有时它是最好的选择。路由器通常被设计和评估用于特定环境。例如，某些路由器最适合单层的较大房屋。其他的有更好的垂直范围。
可能是您当前拥有的路由器无法在您需要的地方工作。也许你卖错了型号，或者你已经搬家了，以前适合你的地方现在已经不够用了。
10 Ways To Boost a Weak WiFi Signal
WiFi has completely tranѕformed the way we live and done away with (moѕt) of the wires that were run everywhere in the old days. That doesn’t mean WiFi can’t also be incredibly frustrating.
Sometimes it’s simply a question of not having enough bars on the signal meter. At other times, it seems like the signal is strong, but the connection isn’t working correctly.
If you’re having trouble getting good WiFi performance, perhaps one of these hot tips will bring back the internet goodness.
Map Out WiFi Weak Spots
Radio waves and light are both part of the same electromagnetic spectrum. The only real difference is that our eyes aren’t sensitive to radio waves, so we can’t see them. However, understanding that radio waves and light are the same thing helps understand why you aren’t getting good signal in some places.
Imagine you put an omnidirectional light in a room. Some parts of the room will be lit up and some parts will be in shadow. Shadows are created when light hits materials that don’t let it through. Some materials reflect light, some materials absorb it or scatter it and radio is no different.
Most materials let radio right through, others absorb quite a lot but not all and others reflect it. You can use a WiFi scanning smartphone app to measure the strength of your WiFi signal in various places within your home. This can help you discover dead spots and then try to figure out what might be interfering with the signal.
Then you can either remove the blockage, move to a different spot yourself or try out some of the other tips below. One app that works like a charm is WiFi Analyzer, so that’s a good place to start.
Remove Interference
WiFi uses sophisticated digital radio, which is pretty resistant against random interference from other devices that also generate radio signals. However, you might be within range of something that is spewing out radio waves that are at just the right frequency and power to block or diminish your WiFi connection.
This can be something like a radio controlled toy or a machine with an air conditioning motor standing too close to the router or receiving device. Use a process of elimination to turn off or move devices that you might suspect of radio interference.
Change The Channel
WiFi is separated into distinct channels, which allows two devices on the same band to operate without interfering with each other. Usually modern routers will pick a channel that’s clear, but it could happen that you’re experiencing a conflict. For example, your neighbour’s new router could be set to the same one yours is using.
This is pretty easy to check and fix. Use an app like WiFi Analyzer to check which channels other WiFi routers in your location are using. Then log into your router’s interface via a browser and change its channel setting to one no one else is using.
If it was already set to a specific channel, you might want to change that setting to automatic instead.
Switch To The 2.4Ghz Band
Many modern routers are “dual-band” and will operate at 2.4Ghz and 5Ghz. The 2.4Ghz band is slower, but has better range. Usually the device and router will automatically manage which band is best.
However, you can try switching your router to using the 2.4Ghz band only, to see if that improves your poor signal strength. If it does, it might be a question of distance or simply material that blocks the 5Ghz band between the device and your router.
Of course, we don’t want to use the slow band for everything. So if forcing the 2.4Ghz band turns out to work, you’ll want to do one of several things. Many dual-band routers actually offer two separate WiFi SSIDs – one for each band. If that’s the case, make sure that the devices that are having trouble picking up the 5Ghz band connect to the right one.
You may also be able to set the device to the 2.4Ghz band in its own settings, ensuring that it only connects to the stronger signal, without affecting anything else.
Turn The Transmission Power Up
Within your router settings there should be one related to the transmission power of the signal. This is usually called Tx power or something similar, but varies from model to model.
Set it to 100% if it isn’t already. That should significantly improve range and signal strength.
Use An External Antenna
If your router is of the type that uses internal antennas, you may want to consider adding external ones to it for better range and signal performance. Refer to the manual to see if your model does indeed have the ability to use an external antenna.
You can buy them cheaply from most online retailers and screw them into the right connectors on the back of your router. It might not be as elegant as an internal antenna array, but it’s definitely more effective!
Adjust Your Antenna
If you have external antennas on your router, you might want to try adjusting them. If they can extend, make them longer. Rotating them and pointing them in particular directions also changes the shape of the WiFi “bubble”, which might help eliminate dead spots. Albeit at the risk of creating new ones.
That may be the right solution if it lets you get WiFi to where you need it, while taking it away from places you don’t.
Move Your Router
Of course, one simple solution might be to simply move the entire router. Placing it in a more central location can ensure that all devices fall within its signal range. It might also be in a position that has lots of radio-blocking materials.
Get An Extender Or Repeater
This method has a larger cost implication, but is the easiest way to enlarge your WiFi footprint. You can buy devices that will extend your router’s reach and this is the only real solution for large homes.
WiFi extenders are placed at the edge of the router’s range and act as a signal repeater, adding another WiFi zone adjacent to the original one. Powerline extenders are particularly useful. They send network signals through the electrical wiring of your home and then create a WiFi hotspot at the one end.
You need to have the router and extender on the same electrical circuit for it to work, but it means not needing ethernet cable and you can extend your WiFi anywhere the power lines reach.
Buy a Different Router
This is the most drastic thing you can do, but sometimes it’s the best option. Routers are usually designed and rated for use in particular contexts. For example, some routers are best for larger houses with a single floor. Others have better vertical range.
It might be that the router you currently own just doesn’t work in the place you need it. Maybe you were sold the wrong model or perhaps you’ve moved and what was just fine for your old place is now inadequate.
