Connectify Internet Sharing
Software
A wonderful free program for Windows 7/8/10
computers
|
|
The free Connectify
software can allow you to connect multiple devices to one
shared internet connection.
This is part of a series on
how to share internet access. See related articles
listed on the right. |
You can't beat free. And
you can't beat the ease of use and functionality of the
Connectify software, even if it was not free.
Using an 'unfinished' part of
Windows 7, this software turns any Wi-Fi equipped Windows 7, 8,
or 10
computer into an internet sharing device, while not interfering
with the rest of the ordinary operation of the computer.
Recommended for all people who
travel with more than one device needing an internet connection.
What Connectify Does
Apparently when Microsoft
was developing their new Windows 7 operating system they started
work on a feature, 'Virtual Wi-Fi' that they ended up leaving
unfinished in the inevitable rush to get the product released.
And so the developers behind
Connectify
managed to identify the functionality that had been already
created in the operating system and added the remaining parts,
creating the Connectify product as a result. Because it
relies on some of the new 'stuff under the hood' of Windows 7,
it only works on a Windows 7 or more recent based computer.
Connectify creates a
'virtual' Wi-Fi router within your computer (assuming it has a
Wi-Fi card installed of course). It is 'virtual' in the
sense of being software rather than hardware based, but it is
very real in the sense of working.
It provides full
functionality - what is termed an Access Point - rather than the
more limited functionality of an 'Ad Hoc' network configuration.
And that's about all the buzz words you need to know (and you
don't even need to know those) - everything else is incredibly
user-friendly and simple.
It also gives you a
reasonably secure form of protecting the data you transmit
wirelessly - WPA2-Personal (AES) encryption.
This virtual router takes an
incoming internet connection - either Wi-Fi or ethernet (wired)
and then (re)broadcasts it out again through your computer's
Wi-Fi card. It also works with Wi-Fi USB dongles and some
but not all 3G USB dongles and (Bluetooth) tethered phones - see
below.
At the risk of stating the
obvious, although Connectify relies on Windows 7 to work on the
host computer, it provides a regular Wi-Fi network that all
internet devices can connect to as readily as they can to any
other Wi-Fi network.
Using Connectify
Connectify's
main control screen (pictured here) is very simple, and the
process of setting it up is equally simple, something you can
either do by filling in the gaps or by answering the prompts in
the 'Easy Setup Wizard'.
You don't need any knowledge
of networking terms of any special skills.
As you can see in this
screenshot from my Dell E6400 laptop, the program is currently
retransmitting a 'Local Area Connection' (ie wired ethernet
connection) with currently one device attached (an iPhone) and
in the history, you can see information about two other devices
that have also been attached to it (another iPhone and an iPad).
In the drop down box, I could as readily choose the Wi-Fi
connection instead if I preferred.
If for any reason you ever
wanted to stop the program, you'd click the Stop button at the
bottom, which then changes to become a Start button for when you
want to restart it. Normally, you set the program to start
automatically when you boot up your computer, and leave it
running in the background all the time without ever thinking
about it. It is fully automatic.
Obvious and Other Uses for
Connectify
The obvious use for
Connectify is to enable multiple Wi-Fi equipped devices to share
a single Wi-Fi or ethernet internet connection, whether this be
in a hotel room or anywhere else where there's a shortage of
connections and too many devices wishing to access them.
Another use for Connectify
is simply to extend the range and coverage of your current Wi-fi
network. For example, in my house, I've poor signal
downstairs - good enough for everything except the iPad to
connect to. So I simply run Connectify at home downstairs
in my work area on one of the laptops to give myself a Wi-Fi
repeater/extender. This makes all the difference to the
iPad.
Sharing a 3G/4G Phone Data
Service Too
Connectify - in theory - can
also share other types of internet connections that are feeding
in to your computer. The most common types of other
internet connections would typically be from a wireless phone
company's data service, either via a plug in wireless data card
that accesses the wireless company's data service, or perhaps
via a 'tethered' cell phone. These types of connections
are discussed in our article on
wireless internet data sharing.
A potential problem is that
some of these devices include a setting that requests the
built-in Windows Internet Connection Sharing (ICS) service in
Windows 7 not to share the device and its connection.
Connectify is working on providing an alternate way of sharing
such devices, but at present, if such a connection includes the
'Do not share me' setting, Connectify could not share it.
Performance Testing
Extensive testing (detailed
below) has shown two positive results and no concerns.
Connectify uses very little
processing power and doesn't noticeably slow down your laptop
(or even underpowered netbook) at all.
I tested it both on a
powerful fast Dell E6400 laptop (Intel dual core T9600 @ 2.8 GHz
and with 4 GB of memory) and on a slow Acer Aspire 1410 with an
Intel Celeron 743 1.3 GHz processor and 2 GB of memory).
Tests of the processing
loads, even those imposed on the underpowered Acer netbook showed there to be very little
overhead required by the Connectify software. With two
devices attached and both involved in network communications, the
Connectify processes reported usually between 0% and 3% load,
and there was little discernable increase in CPU load from any
other processes either.
Of course the Dell laptop
barely noticed the impact of the Connectify program at all.
It truly does run invisibly in the background without impacting
on your regular computing.
Again using the Acer netbook
for 'worst case' results, a series of internet bandwidth/latency
tests were run, comparing the outcome from directly connecting
devices to a Wi-Fi router and alternatively, connecting them
first to Connectify and then from Connectify on to the internet
(both via the Wi-Fi router and then from the netbook via
ethernet).
The internet connection was
a Verizon FIOS line specified at 10Mbit/sec download and 2 Mbit/sec
upload.
Two sets of tests were done.
The first test was using an iPhone 3GS and the Speedtest.net
app. This gave consistent but anomalous results in terms
of upload speeds which were all much less than expected.
However, as can be seen, there was no significant slowdown by
connecting via Connectify rather than direct to the Wi-Fi
router.
Due to the anomalous upload
results, we then repeated using the new FCC bandwidth testing
app (itself a bit unreliable). This did not have any
anomaly, and showed very similar results - indeed, download and
upload speeds were very slightly faster going through Connectify
than directly connecting.
Raw Test Results
Each test was done four
times to allow for semi-random variations in internet
connectivity. The results and averages are shown below.
Bandwidth
Tests using iPhone 3GS and Speedtest.net app
Test
1.1 - Direct to Wi-Fi router, no
Connectify involvement |
|
Download (Mb/sec) |
Upload (Mb/sec) |
Latency (msec) |
Test
1 |
9.24 |
0.42 |
39 |
Test
2 |
9.27 |
0.36 |
45 |
Test
3 |
9.22 |
0.20 |
44 |
Test
4 |
9.16 |
0.46 |
42 |
Average |
9.22 |
0.36 |
43 |
Test
1.2 - via Connectify, using its Wi-Fi |
Test
1 |
9.17 |
0.37 |
37 |
Test
2 |
9.16 |
0.20 |
45 |
Test
3 |
9.07 |
0.54 |
38 |
Test
4 |
9.32 |
0.34 |
47 |
Average |
9.18 |
0.36 |
42 |
Test
1.3 - via Connectify, using its Ethernet |
Test
1 |
9.20 |
0.15 |
41 |
Test
2 |
8.95 |
0.57 |
47 |
Test
3 |
9.23 |
0.17 |
44 |
Test
3 |
9.08 |
0.82 |
40 |
Average |
9.12 |
0.43 |
43 |
|
Bandwidth
Tests using iPhone 3GS and FCC Bandwidth Tester
App
Test
2.1 - Direct to Wi-Fi router, no
Connectify involvement |
|
Download (Mb/sec) |
Upload (Mb/sec) |
Latency (msec) |
Test
1 |
8.04 |
1.98 |
35 |
Test
2 |
7.58 |
2.15 |
35 |
Test
3 |
9.18 |
2.12 |
35 |
Test
4 |
9.23 |
2.13 |
35 |
Average |
8.51 |
2.10 |
35 |
Test
2.2 - via Connectify, using its Wi-Fi |
Test
1 |
8.68 |
2.09 |
35 |
Test
2 |
7.90 |
2.15 |
35 |
Test
3 |
9.02 |
2.15 |
46 |
Test
4 |
8.65 |
2.13 |
46 |
Average |
8.56 |
2.13 |
41 |
Test
2.3 - via Connectify, using its Ethernet |
Test
1 |
9.32 |
2.13 |
32 |
Test
2 |
9.27 |
2.15 |
31 |
Test
3 |
9.44 |
2.10 |
31 |
Test
3 |
9.30 |
2.05 |
33 |
Average |
9.33 |
2.11 |
32 |
|
Summary
Although hotels and other
places may attempt to charge access fees for each and every
individual device that you wish to connect to the internet,
there are a number of workarounds to avoid having to pay
ridiculous fees for this access.
In the first part of this
series, we discussed the general nature of the problem and the
underlying issues and
solutions to sharing a single internet access point.
In the second part we discussed
using routers to provide a
hardware based internet access sharing solution, and in the
third part we discussed using
wireless data devices to avoid hotel and other providers and
their access charges in general.
And now in this final part
we introduce you to a wonderful and free software solution that
provides all the functionality you need, as long as you have a
Windows 7 (or above) laptop or netbook to run it on.
Related Articles, etc
|
If so, please donate to keep the website free and fund the addition of more articles like this. Any help is most appreciated - simply click below to securely send a contribution through a credit card and Paypal.
|
Originally published
9 April 2010, last update
21 Jul 2020
You may freely reproduce or distribute this article for noncommercial purposes as long as you give credit to me as original writer.
|