What are the advantages and disadvantages of WiFi ?

Wi-Fi is an abbreviation of the phrase Wireless Fidelity.

Advantages

  • Convenient
    • Useful for smartphones, tablet devices and other portable devices to connect at any convenient location within premises.
  • Simplicity
    • To connect a new device with a network, simply turn on the Wi-Fi and do the simple configuration settings.
  • Mobility
    • Internet can be accessed from anywhere, ie. Bus, train, coffee-shop, super market, etc.
  • Expandability
    • It is convenient to add more wireless devices with current hardware settings without any cost and time.
  • Efficiency
    • WiFi enabled devices are used at offices for convenient to access their files at any location and it gives more productivity for the company.
  • Cost Control
    • In WiFi network devices can be added without any cost unlike cables needs to be get man power to do the job.
  • Standardization of Technology
    • Wi-Fi technology has standardized for all countries, it helps for the mobile devices to connect the WiFi regardless of the location.

Disadvantages

  • Performance/Speed
    • Although Gigabit WiFi is available in the market, we cannot get the gigabit speed at all locations. Now cable network has 10 Gbps speed.
  • Connectivity/Reliability
    • WiFi signal is depends on the interference. Ie. Concrete wall will reduce the signal strength. Also, there is a limit for distance to connect WiFi signals.
  • Security
    • WiFi router has various encryption methods to secure our network password. Need to be done proper configuration before use the WiFi network.
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Router’s common issues

Routers are mandatory for small businesses and homes to connect the outside world.  Wireless routers are common for home and all types of businesses to get the internet connection to their desktops, laptops, smart phones, tablet devices and other wireless devices. Router determines how to send and where to send the information from one computer to another computer.  The information can be send from one network to another network as well.

Common issues of routers are:

  • Difficult configurations
  • Firmware updates
  • Hardware specs (Memory, HDD etc)
  • no. of simultaneous users

Common issues of Wireless routers are :

  • Interference (Positioning of router).
  • Distance between Wireless Access Points and client devices.
  • Router capacity for concurrent users.

Best ADSL Router

TP Link AC1750 Wireless Dual Band Gigabit ADSL2+ Modem RouterArcher D7

  • Supports Superfast Wireless Speed with 802.11ac standard
  • Dual band
  • 3 dual band detachable external antennas
  • Full Gigabit Wired Connection
  • One Gigabit LAN/WAN port
  • Three Gigabit LAN ports
                            
  • Simultaneous 2.4GHz 450Mbps and 5GHz 1300Mbps connections provide a premium wireless experience
  • Share a printer locally and files & media with networked devices or remotely via FTP server
  • Ethernet WAN (EWAN) port accepts connections from cable and fiber modems via Ethernet cable
  • TP-LINK Tether provides the easiest way to access and manage the router on your iOS and Android devices

Wireless Access Point Positioning

Placement of WiFi access point is most important in WiFi infrastructure design for optimizing nework.  It will reduce the hassle for IT staff after deployment of wireless access point setup.  Poor installation of WiFi will cause connectivity issue and lead to customer dissatisfaction.

The following tips helps to place a access points for better performance:

Free from obstacles

Try to place wireless access points without any obstacles such as wall, furniture, ceiling etc.  So that the Radio Frequency waves can be reach the client device faster speed.

Position

Access point placement on ceiling is best for horizontal coverage. If ceiling is too high try no to do. Do not put Access point above the ceiling tiles. It will create a extra barrier to go through the signal.

External antenna

Do not point external antennas all in one direction.

Interference

Avoid interference with the bluetooth devices, microwave ovens, fluorescent light bulbs, cordless phones, and other WLAN networks devices.

 

Types of Wireless Networks

Wireless network connections replaced cables to connect internet for laptops, smart phones and tablet devices using radio frequency waves.  With wireless connections smartphones and tablet devices are conveniently access internet connections without cables.  Second-generation 2G cellular telecom networks were commercially launched on the GSM standard in Finland in 1991.

 

Type Range Standards Performance Applications
Wireless Personal Area Network (WPAN) Within reach of a person Bluetooth, NFC, Wireless USB, ANT UWB & ZigBee Moderate Cable replacement for peripherals.
Wireless Local Area Network (WLAN) Within a campus or building IEEE 802.11 High Wireless extension of wired network.
Wireless Metropolitan Area Network (WMAN) Within a city IEEE 802.15 (WiMAX) High Wireless inter-network connectivity
Wireless Wide Area Network (WWAN)

 

Worldwide Cellular Low/Moderate Wireless network access.

 

How do I secure my wifi router from hackers/neighbours ?

 

  1. Login to Router Settings and Create Strong Password
  • Do not leave username as ‘admin’ change as you preferred and change password from ‘admin’ to strong password (combination of alphanumeric).
  1. Disable network SSID from broadcast
  • SSID is wireless network name. Disable SSID means neighbour can’t see your wireless network name in the list when they search.
  1. Create Strong WiFi Password
  • Creating strong WiFi password makes difficult to hack. Enable WiFi encryption as WPA2 Personal.
  1. MAC Address Filtering
  • Enable MAC address filtering allows registered devices allows access to your network.

 

 

How to setup Linksys router with a password?

Reset Router

  1. Power on the router.
  2. Locate reset hole (It is usually appears back of the router, beside the power on/off switch).
  3. Push a pin or paper clip into the reset hole and hold it for 10 seconds (all LED lights will be flashed).
  4. Release the pin or paper clip from the hole.
  5. Wait for 2 to 3 minutes to complete the reset process. Once it is completed the router LED lights goes to steady mode.

Login

Step 1: Open your browser (Firefox / Chrome/Internet Explorer / Safari)

Step 2: Type Linksys default IP address “192.168.1.1

Step 3: It prompts to type username and password.

Username: admin

Password: admin

Step 4: Click “OK

WiFi Settings

Step 5: Click “Wireless tab

Step 6: It brings to Configuration view – >Basic Wireless Settings.  Change the following configurations.

Select “Manual

Network mode: Mixed

                Network name (SSID):  <type your preferred name>

(It appears when you are connect to Wireless from your mobile)

SSID broadcast: Enabled

Step 7: Click “Save Settings

Step 8: It displays message as “Your settings have been successfully changed”.

Step 9: Click “Continue

Set Wireless Connection Password

Step 10: Click “Wireless Security” tab.

Step 11: Select Security mode as “WPA2 Personal

Step 12: Type wireless connection password. (Keep the password mixed with alphanumeric)

Step 13: Click “Save settings

Step 14: It display message as “Your settings have been successfully changed”.  Click “Continue”.

Set Linksys Router Password

Step 15: Click “Administration” tab and it brings to “Management” tab.

Step 16: Type your router password in “Router Password” and “Re-Enter to Confirm” boxes.

Step 17” Click “Save Settings

Note: Write down and keep your router password and wireless connection password in safe place.