GUIDE - MAXIMISE YOUR WI-FI
Here's why your Wi-Fi might be so slow
and how you can fix it
Wi-Fi is the way of the world now.
It's the invisible friend that com forts us, allows us to binge on Netflix in
bed and equips us to work from anywhere at any time.
Wi-Fi
is pretty much a necessity these days. Sometimes, however, the relationship
turns sour -especially when Wi-Fi slows to a crawl.
When
you rely on Wi-Fi, speed issues can hurt. Unfortunately, speed issues aren't
always easy to diagnose due to the way Wi-Fi works. One unknown variable could
potentially cut your Wi-Fi speed in half, so it's important to know what to
look for when something's wrong.
Wi-Fi
transfers data using one of two radio frequencies: 2.4 GHz (older standard) and
5 GHz (newer standard). Most modern routers can switch between the two and
smart routers can even choose the best frequency for you. Within these
frequencies, there are multiple channels: 14 of them at 2.4 GHz and 30 of them
at 5GHz.
Those
are the fundamentals of how Wi-Fi works. Knowing that, we can now explore some
of the lesser-known reasons behind why your Wi-Fi is so slow, and the best ways
to fix those issues.
ROUTER POSITIONING
Most
people underestimate the importance of picking a good spot for a Wi-Fi router.
Even a small shift in positioning could end up being the difference between day
and night.
HIGH VS LOW
Leaving
your router on the ground or behind other objects usually results in noticeably
worse performance. Instead, put the router as high up as possible to extend the
broadcasting range of the radio waves.This also helps clear the router of
possible interferences.
CONCRETE & METALS
Materials
like concrete and metal tend to be the worst for blocking Wi-Fi waves, but even
objects of other materials can get in the way. Make sure your router isn't
blocked by any other objects, especially devices that are electronic.
Also,
avoid placing your router on a lower floor as this area is usually enclosed by
a lot of concrete, which can be almost impossible for Wi-Fi signals to
penetrate.
DISTANCE TO ROUTER
The
further away from your router you get, the weaker the Wi-Fi signal. Therefore,
the best option is to place your router as close to your devices as possible,
but this is only practical if you have one main area where you tend to use your
devices.
Otherwise,
you should place your router near the centre of your home. After all, Wi-Fi
broadcasts in 360 degrees, so it doesn't make sense to put it at one end of the
house.
However,
if your router is particularly weak or if your house is particularly big, then
you may need to increase the range of those Wi-Fi waves by using Wi-Fi
extenders or repeaters. These are auxiliary devices that connect to the main
router and “repeat“ the signal so it covers more area.
WIRELESS NOISE & INTERFERENCE
There
are wireless signals all around you wherever you go and they're passing through
you all the time. From where?
Electronic devices, Wi-Fi routers, satellites, cell towers, and more.
Information
designer Richard Vijgen created `The Architecture of Radio' available on iOS
and Android which uses public information on satellites and cell towers,
along with Wi-Fi information, to create a map of all the invisible signals
around you.
Although
Wi-Fi is supposed to be on a different frequency than most of these devices,
the amount of radio noise can still cause interference. Some common and
noteworthy causes of interference include...
MICROWAVES
Did
you know that microwave ovens can cause interference with your Wi-Fi network?
Especially with older routers. This is because microwave ovens operate at a
frequency of 2.45 GHz, which is incredibly close to the 2.4 GHz Wi-Fi band.
Most
microwaves are properly shielded so no waves should be detected outside of the
oven, but when there is faulty or poor shielding, that's when interference can
occur.
BLUETOOTH DEVICES
Another
favourite type of wireless connection -Bluetooth -also happens to operate at
2.4 GHz. In theory, a properly designed device should be shielded in a way that
prevents interference.
Furthermore,
in order to prevent frequency clash, Bluetooth manufacturers use frequency
hopping, which is where the signal randomly rotates between 70 different
channels, changing up to 1,600 times per second. Newer Bluetooth devices may
also have the ability to identify “bad“ or currently in-use channels and avoid
those.
But
interference can still occur, so try moving the router away from Bluetooth
devices (or at least turn those devices off) to see if this is the cause of
your troubles especially if they are older Bluetooth devices without channel
management.
FESTIVE LIGHTS
Funny
enough, fairy lights can be a devious culprit in slowing down your Wi-Fi
because these lights can emit an electromagnetic field that interacts with your
Wi-Fi band.This is especially bad when using lights with the ability to flash.
You
aren't even safe with modern LED lights because some of them have flashing
chips built into each lamp, and these create an interfering electromagnetic
field.
YOUR NEIGHBOURS
A
truth of the modern world is that every household has their own Wi-Fi network,
which can cause issues with channel overlap. Channel overlap is mostly an issue
for routers that can only broadcast at 2.4 GHz or if you have devices which can
only receive a 2.4 GHz wireless signal. That's because there are only 14
channels to broadcast on. Two routers broadcasting on the same channel at the
same frequency will interfere.
This
is why it's important that you pick a good channel in your router
settings.Modern routers can choose channels for you automatically, but
sometimes it's better to investigate and find the best channel yourself.
Furthermore,
people may try and get on your network without your knowledge, and this can
also slow down your Wi-Fi. The single most important thing you can do about
this is make sure your router doesn't have an easy-to-break password. Also,
keep your router up-to-date and perform regular checks for suspicious devices
on your network.
YOUR HOUSEHOLD
Have
you ever left a massive download running on your PC? Well, in that case you are
probably the cause of your own slow Wi-Fi.Downloading large files can take
quite a toll on your Wi-Fi performance. Sometimes this can't be avoided -OS
updates can be huge, for example -but if you're running tasks that aren't
urgent, try pausing them.
More
likely, however, is that the people on your network, such as friends,
roommates, or family members, are participating in bandwidth-heavy activities
like gaming and streaming Netflix. Fortunately, if this is the case, you can
prioritise your own network traffic by enabling Quality of Service in your
router settings.
Source | Mumbai Mirror | 11
April 2016
Regards
Pralhad Jadhav
Senior Manager @ Library
Khaitan & Co
Upcoming Event | National Conference
on Future Librarianship: Innovation for Excellence (NCFL 2016) during April
22-23, 2016.
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