Malware and adware have been around almost as long as the Internet existed. First viruses would attack a computer clogging the hard drive, or deleting the files – do things that would reduce or completely stop computer’s functionality. Then cyber criminal realised that it might be a great way to make money, so adware took the flagship and everyone was flooded with advertisements, pop-ups and other nasty things. The next wave of conspicuous malware aimed at particular user individually, tricking people into buying things, paying for services and so on. Of course, there is an awful lot of malware that you cannot see. Those programmes sit quietly and intercept all the sensitive data, as passwords, payment details, and personal information.

 

The good news, that most of those viruses are easily removable from your computer. Additionally, your banks, social media, and email providers have also improved a lot in handling those attacks or misuse of intercepted information. And for some time we were not particularly scared when a client would come in into our London Computer and Mac Repair Service with an infected computer. We can remove all the harmful stuff in 5 hours or less. So when horrified people would point at “Interpol has blocked your computer until you pay a fine” or “All your data will be encrypted, if you don’t pay…” message on their screens, we would smile and say “There is nothing to worry about”.

 

Yet the new wave of malware makes us worry a lot. There are types of malware that actually do encrypt your data. And, according to Kaspersky Lab, this harmful activity has increased in five times during the past year. Kaspersky Lab offers a variety of tools to protect your computer, but even they admit that this may not be enough. That is why their new defence includes a backup tool, and in the case of infection, Kaspersky restores the system to the previous state before infection. They admit that regular backup is indispensable when dealing with this type of threat.

 

Contact us if you need an advice on backup. Or visit our Computer repair London service at 59 Westbourne Grove, London, W2 4UA.

Have you given much thought to the safety of your data? I am sure that many of you have passwords on your phones and computers. But what does it really protect? One of our clients asked us this question at our Apple Mac and laptop repair London centre recently. That is what we are going to discuss here today.

Password

You will be surprised that all your effort devising and then remembering a long and complex password has very little real protection. Imagine that you have a key to a house. The door has a very good lock and you are the only person who possesses the key. When you decide to walk around the house and you notice that the walls have gaping holes instead of windows. It’s a sad view, isn’t it? Well, in the cyber world there is, in fact, no walls at all. Unless your preventive measures went further than a password, almost anyone who wants to access your data will encounter no difficulties in succeeding. The interface of an operating system is the only thing that protects your data. If you take the hard drive out and plug it into a different system with its own interface all the information becomes accessible. All because there are no such restrictions in intruder’s system.

Encryption

How do I protect my data? Encryption is one of the tools. A drive encryption tool is something that takes all your data on any particular drive and makes it completely unreadable to anyone but you. Encryption is the process of protecting data by using an algorithm to scramble it. Mac Os offers free software, FileVault, which  you can access through Apple menu > System Preferences > Security & Privacy. Windows Vista and later offers free software as well. However, you have to have a licence for Pro version or higher (only Enterprise and Ultimate for Windows Vista and 7). But there are free alternatives such as DiskCryptor or VeraCrypt. The later one is supported on almost any widely available operating system.

 

However, the strength of encrypting software is also its weakness. If you forget the password… Lasciate ogne speranza, voi ch’intrate*

 

*Abandon all hope, you who enter here. Dante.

OS X Snow Leopard was first released in 2009. Surprisingly, some of our clients, who seek assistance from our London IT Support, PC and Mac Repair Services, still have it on their devices!

 

Snow Leopard has not been supported for 2 years already. It had received its last update in 2015, that allowed users to upgrade to the latest OS X, El Capitan. However, it did not have any security updates since September 2013. In order to keep you protected developers of two most popular operating systems (OS), OS X and Windows, release new updates with the frequency between from usually once a week to once a month. Installing those updates is vital as within another week to a month cyber criminals will find another weak spot. In the case of Snow Leopard, cyber criminals were able to exploit the system unrestrained for almost 3 years by now. No proper antivirus or antimalware protection is available. Additionally, there is no support for new Internet browsers, that, again, jeopardise your safety and limit access to many resources.

 

Of course, you may find few difficulties conjugated with the upgrade to the latest OS. You may find that your Microsoft Office Suite is no longer compatible (2004 and earlier), some Logic plugins (for musicians), iPhoto is no longer supported and now is replaced with Photo (many people complain that it has significantly less functionality than its predecessor), all PowerPC applications, and more. Upgrading to newest applications or finding a replacement for them may cost you hundreds of pounds. However, neglecting security of your data may potentially cost you everything you’ve got. You can check compatibility of your apps at RoaringApps. Perhaps, the upgrade may be absolutely painless with software you use.

 

Upgrading your OS X is simple. Go to AppStore through Apple logo in the top left corner and download the latest OS X for free. It may take few hours to complete, but requires minimal involvement, few odd clicks now and then. Please, check the official Apple web-site for detailed instructions and additional information. Alternatively, contact us today on 0207 22 11 355 or visit us for assistance.

 

If you were to visit us in our London IT Support Service last summer and ask us whether you should upgrade to Windows 10 or not, you would hear our alerting “No! No! Don’t do that!” We have even given people advice how to stop their computer from upgrading to the new operating system. It is true when Windows 10 was just released it had a lot of problems. We were surprised, how something of such poor quality was made publicly available. Almost the year has passed since the official release of Windows 10. Do you wonder if the things have changed? They indeed have. It was very productive time for Microsoft. They have released tonnes of patches, fixes, and updates. And, finally, to those people, who we were scaring off the upgrade: we are giving the green signal.

 

We have previously discussed some exciting new features in Windows 10. What else can we add? Windows 10 has faster booting times. It works better with hardware, utilising more acceleration features that increase overall performance. DirectX 12 is available exclusively on Windows 10, that allows faster and better gaming. Identification with new OS is easier as features that grant access to documents and files with user’s biometric data are now built-in. Facial recognition uses special infrared cameras to reliably tell the difference between a photograph or scan and a living person. Fewer passwords to remember – isn’t that grand! Brute-force attacks are now even less efficient with new features. BitLocker now does a better job at protecting your files from unauthorised access. A heap of new developments protect the device from malware attacks, including The SmartScreen Application Reputation feature, that reduces the chance of human error.

 

We would like to remind people that free upgrade expires very soon, the 29th of July 2016. There’s little time for hesitation.The only precaution that we would like you to be aware of is that the upgrade may delete some of your applications without notification. We do strongly recommend to review all the essential software you use and see whether it is compatible with Windows 10. That chances that it is. But a little bit of precaution is better than a potentially irreversible loss.

 

Scared to do it yourself and want to be sure that nothing gets lost on the way or the option to return to the previous state is anything goes wrong? – contact us today on 0207 22 11 355 or visit us for assistance.

 

Home Wireless routers are faster than ever, with affordable models having bandwidths up to 3200Mbps. 10 years ago majority were running at 54Mbps, so that is a huge jump in performance in the effort to improve WiFi signal. However, due to a huge increase of signal waves in the air causing interference from neighbouring routers, phones and even microwaves the range of these devices in practice is not much better than they were 10 years ago. In fact, at a distance, the speed you get from a new “fast” router is not quite as big a leap over an old 54Mbps Wi-Fi router.

A big reason for this is that older wireless devices used a 2.4GHz band to give out a signal. 2.4Ghz is a relatively low frequency, which in practice gives a nice long range and allows it to penetrate through solid objects. Unfortunately, the maximum speed of a 2.4Ghz band is limited, so to overcome these limitations higher frequency, 5GHz, is used. The downside is you now lose the range. Unfortunately, this is the compromise that has to be made to increase Wi-Fi speeds as 54Mbps is not going to cut it as your laptop, iPhone, iPad, TV, PlayStation and fridge are trying to simultaneously stream movies, play games and tell you which food you need to buy.

 

5GHz or 2.4GHz. Advantages and disadvantages

Improve WiFi signal

With the increasing amount of wireless devices, the original 2.4GHz frequency has started to get very cluttered. In addition, 2.4GHz suffers from only having 3 non-overlapping channels. This means it’s more prone to interference as other devices are likely to be using those same channels. Many other devices such as cordless phones and microwaves also run on the 2.4GHz frequency meaning more interference.

5GHz, on the other hand, has 23 non-overlapping channels giving you more options to isolate yourself from other networks, and there are less other devices that run on 5GHz.

Higher frequencies also allow a faster transfer of data; the maximum speed of 2.4GHz is 450Mbps whilst on the 5GHz it is 1300Mbps (on most home routers that is). However, the higher the frequency the more trouble penetrating solid objects such as walls and floor, so in practice the range of a 2.4GHz signal is greater.

Most modern routers in an effort to improve WiFi signal are dual band and give out signals on both 2.4Ghz and 5GHz to provide the option of short-range speed and long-range communication.

 

AC WiFiIntroducing AC Wireless

AC wireless is the new tech that’s becoming more popular and more affordable. It works solely on the 5GHz frequency. It increases the maximum speed of the 5Ghz from 600Mbps (of the 802.11 N) to 1300Mbps. It also has a technology called “beamforming” which increases the range of the 5GHz. Although the range is still edged out by 2.4Ghz signals, especially if there are any solid objects in the way of the signal.

Importantly AC is backwards compatible so you can buy a router knowing that all your old devices will still function at 5Ghz N Speeds. And most AC routers are dual band so will include the 2.4Ghz band for even older devices, but it’s something to double-check before purchasing.

 

 

What do the advertised Wireless speed ratings actually mean?

So you’ve seen models advertised as having 3200Mbps or 1900Mbps, but that does not actually mean that is their maximum speed, that is just the available bandwidth and is usually spread out over multiple bands. As an example, the D-Link AC3200 has “Tri-Band” Wi-Fi with 2 signals at 5GHz and 1 signal at 2.4GHz.

 

D-Link AC3200

The specifications state that the 2.4GHz has a bandwidth of 600Mbps and on each 5GHz the bandwidth is 1300Mbps. so 600Mbps+1300Mbps+1300Mbps gives 3200Mbps. So if you have 1 device at home that uses 5GHz wireless you will only be able to use a single 1300Mbps signal at a time. However, if you have many wireless devices, these routers allow connections on different signals as opposed to sharing a single signal.

When you buy a wireless device in the specification it will specifically state the speed of each band which would give you a better idea about the speeds achievable on one band. Of course, these speeds do also depend on the receiving device (laptop, phone etc.) having the same capabilities, and usually, they are only able to connect to 1 band at a time.

These documented speeds are all theoretical maximums and are never attainable in practice. As an example, www.pcmag.com have a review of the D-Link above, and the highest speed they achieved at 1.5M away from the router was 558Mbps.

 


How to increase Wireless range and speed

Let’s forget changing channels and tweaking settings on the router to improve WiFi signal, most have pretty decent auto detection that automatically picks the best channel out for you. So unless your devices are dropping the signal within view of the router you are unlikely to get much success here. It would be more useful to re-position your router, however usually that would need to be planned ahead before your internet service provider comes and installs the cabling for your internet.

So here are the practical steps to take in order to achieve a good range and high speeds in order of our recommendation.

1 – Multiple Wireless access points wired in

We’ll start with the oldest and by far and away the best method to improve WiFi signal and provide stable long term results, but also the one that requires the most work. It requires running an ethernet cable from your main router to an additional wireless access point. This way you have an additional device giving out a signal not only sharing the load from the main router and providing a signal where the main router does not reach.

If you want to take advantage of 5GHz speeds, we would recommend placing the access points in a place where there will be no solid objects obstructing the signal.

multiple hotspots

 

In addition, you can run multiple ethernet network cables connected to wireless access point from the router to wherever you require a stronger signal. You can even purchase Wireless Access point cluster sets. These have the added benefit of having your device automatically switch to the strongest signal within milliseconds.

Positives

  • Most reliable long term method
  • Cheapest to upgrade. You just need to upgrade the access points.

Negatives

  • Installation of wiring can be difficult if you want it done neatly and a professional may be required.

For installing multiple wireless access points to improve WiFi signal, Bits & PCs recommends is the Ubiquiti Networks UAP-AC-PRO

UAP-AC-PRO

  • Built in central management allowing control of multiple access points from one location.
  • 802.11ac
  • 3×3 MIMO
  • Simultaneous dual-band
  • 2.4GHz throughput of 450Mbps
  • 5GHz throughput of 1300Mbps
  • 2 Gigabit Ethernet Ports

 


2- Powerline/Homeplug

Using your electricity wiring to transmit a network signal has been around for a few years now and speeds are getting pretty good. Plus you can buy a ready made package which provides a wireless signal so there’s no need to purchase an additional wireless access point. In addition, once you’ve purchased the first pack, you can add on multiple compatible Wi-Fi Add-on powerline transmitters wherever there is a weak signal in your home.

haus_1000+_EU_01

 

Not every home is compatible with these and speeds vary greatly from home to home. Plus, they have quite a high failure rate and they have to be plugged into the wall directly for the best signal (avoid connecting to surge protectors) so it’s best to get a pass through a version that still allows the plug socket to be used.

Positives

  • Easy to fit and neat
  • Simple to setup. Usually plug and play
  • Results are usually faster than purely wireless options

Negatives

  • Not every home is compatible with them.
  • Speeds vary from home to home and from power socket to power socket. You never know what you will get.
  • High failure rate. If you get an expensive one, get one with a 3-year warranty.

For installing a Wi-Fi powerline system to improve WiFi signal, Bits & PCs Recommends the Devolo dLAN 1200+ Wi-Fi ac Powerline Starter Kit.Devolo dLAN 1200+ Wi-Fi AC Powerline Starter Kit

  • Lightning-fast 1200 Mbps powerline connection paired with Wi-Fi AC access point and two integrated Gigabit LAN ports
  • Simultaneous use of 2.4 and 5 GHz Wi-Fi frequencies for maximum Wi-Fi speed
  • Integrated pass-thru sockets ensure no power outlet is wasted.

Add-On adaptor for additional Wi-Fi Points.


3- Replacement router

If you have an old router, you’ll notice a big difference in speed and range by simply upgrading to a more powerful router with the newer wireless specifications.

If you have a router provided by your Internet service provider (ISP) that is not AC standard, then a new AC router would increase range and speed, if your devices are compatible.

If you have a router from your ISP that is AC standard then you will not see huge improvements in range or speed, but you’ll generally get a more stable Wi-Fi connection, and possibly more stable Internet connection. The “free” routers provided by your ISP are free for a reason, with a few exceptions they are not very good and we would recommend replacing them. You will also get more control and more features if you feel like tinkering.

Positives

  • Only one device needed, no additional devices around the house or additional wiring.
  • Advantages of a more stable Internet connection.
  • Possibly better Wi-Fi speeds.

Negatives

  • If interference or solid walls were causing poor signals on your old router, they will also affect any new router.
  • Increase in Wi-Fi range is usually small
  • Increase in wireless speed is only if you previously have an old technology router.
  • ISPs usually don’t provide support unless you use their router

To upgrade the router to improve WiFi signal, Bits & PCs Recommends the Asus Tri-Band Wireless-AC3200 Gigabit Router

Nighthawk X6 AC3200

  • Ultra-fast 802.11ac Wi-Fi router with a combined tri-band data rate of 3200 Mbps for smooth up to 4K/UHD video playback, ultra-fast file-sharing for large files and low-latency online gaming.
  • Tri-Band Smart Connect automatically selects the fastest of the three available frequency bands for each device, based on the device’s speed, signal strength and how busy each band is.
  • Built-in USB 2.0 and USB 3.0 ports for up to 10-times faster data transfers to USB storage devices, printer sharing, and 3G/4G dongle support.
  • AiProtection with Trend Micro with triple-strength total network security, plus robust parental controls and privacy protection.

If you still need an ADSL router we would not recommend you spend too much as ADSL maximum speeds are not very fast. However, if you would still like to maintain a high network speed we would recommend the Asus DSL-AC68U.


4- Wireless Repeater/Extender.

So a new router hasn’t helped improve WiFi signal, your home electric cabling is not compatible with powerline and you don’t want or are unable to install physical cabling, then your choices become more limited.

Repeaters and extenders have been around for a while however their problem is they generally half the speed of your Wi-Fi signal because on wireless you can’t send and receive at the same time. This was a problem when Wi-Fi was 150Mbps, but now that they are capable of multiple bands of 1300Mbps and 600Mbps, the results should still be sufficient enough for even the most ardent movie streamer.

However, we would not recommend them at all for avid gamers as they add another step to the internet transfer which can add some lag to your experience, and we would not recommend using multiple repeaters in sequence.

Positives

  • No wiring needed.
  • Do not rely on home cabling

Negatives

  • They half the speed of the Wi-Fi
  • Not good for gaming.

As a very customisable repeater, Bits & PCs Recommends the Netgear Nighthawk EX7000 Wi-Fi Range Extender AC1900 Netgear Nighthawk AC1900 range extender (EX7000)

  • AC1900 Model.
  • Dual band 2.4 & 5GHz Wi-Fi up to 1900Mbps
  • 3 external antennas for maximum signal coverage
  • FastLane technology improves performance using both Wi-Fi bands
  • Five 10/100/1000 Ethernet ports with auto-sensing technology
  • Can be used as an access point or Wireless bridge.

5- Upgrade the wireless hardware/software on your device

The software is always being updated to make the hardware more reliable, robust and even faster so regularly check updates for your phones, tablets and computers.

With regards changing the hardware, there’s not much you can do with phones or tablets short of upgrading to the latest models to improve WiFi signal. However, for your computer or laptop, you can upgrade the wireless card to something a bit faster. Not every laptop is capable of having the hardware upgraded, and you have the option of using an external USB dongle, which although less convenient and more cumbersome, can result in faster internet speeds.

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Improve WiFi signal London Professional Services

If you have any suggestions on methods you have used to improve Wi-Fi speeds and signals please leave a comment for us below. Alternatively, if you have any questions or need specific help or need troubleshooting please feel free to contact our London Network and Wi-Fi installation team here.