Currently Viewing Posts Tagged wireless

TP-Link 11AC dual band USB wireless adapter WDN5200

I bought this new USB wireless adapter from China. TP-Link TL-WDN5200.

The speed when I copy a file from my DNS-323 NAS which is attached on Giga Switch to a Windows 7 desktop. It started from about 6MB/second. Then keep going up. Later it reached 9 MB/Second.
wdn5200-speed

The connection speed is shown as 292Mbps. The Max speed is 433Mbps on 5GHz band.

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7 Tips to Wi-Fi Performance Optimization

The seven must-know tips for your Wireless Wi-Fi network Performance Optimization.

1. Placements of Devices

Radio signal travels through air to its destination. The radio signal will be reflected, refracted or absorbed if there is something on the way.

So, Keep the wireless router away from blockage, especially metal and bricks.

2. Antennas Positioning

Antennas has direction.  So try to put the antenna in multiple directions to avoid the generation of dead zone.  The D-Link SmartBeam provides much better directions.

3. Handling Radio Interference

As I discussed before, choose the least used wireless channel when possible.

4. Maximizing Channel Bandwidth

Later generations of wireless protocol may utilize higher bandwidth to deliver the superior performance from the previous. So choose 40MHz instead of regular 20MHz, it provides double bandwidth for your connection if possible with the wifi adapter.

5. Encryption

For security reasons, data encryption is must have. There are two main different encryption methods, or Cipher Type. TKIP and AES. TKIP has poor performance. So, select the AES for your network.

6. Other Unique Options

Some unique options may available for certain router and wireless adapters. Most are from same brand. Such as TX Bursting, Optimize AMPDU, Optimize ack suppression or Jumbo Pack.  But do it cautiously,  it may break the connection if the device is not compatible.

7. Further Extend the Wireless Coverage

To further extend the network coverage, one can also consider put a Wi-Fi repeater. I setup my WIRELESS-N WZR-HP-G300NH2 as repeater with DD-WRT rom.

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How to make WPA work on Acer Aspire One ZG5 or AOA110

It has problem when I first install Windows XP with SP2 on this tiny netbook, Acer Aspire One ZG5 or AOA110. I can connect it to AP with WEP security setting. But WPA is not working.

The wireless card driver is the official release which I download from the Acer support site.
The driver version is Atheros_7.6.0.224.

I am still want to use WPA protection. I am sure the hardware support the WPA security. Because I use Ubuntu, a Linux distribution, on this netbook with WPA more than one year.


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Disable your WiFi WPS, security vulnerability found

It is a big news yesterday.
WiFi WPS security vulnerability found, major router makers affected
Wi-Fi Protected Setup (WPS; originally Wi-Fi Simple Config) is a computing standard that attempts to allow easy establishment of a secure wireless home network, but has been shown to easily fall to brute-force attacks. vi wiki
The router affected including:
Belkin, Inc.
Buffalo Inc.
D-Link Systems, Inc.
Linksys
Netgear, Inc.
Technicolor
TP-Link
ZyXEL
So, disable your WiFi WPS first.

How to Disabling WPS on Belkin router

1. Open a web browser on the computer.
2. In the address bar of the web browser, type http://192.168.2.1
3. Click Login in the upper right-hand corner of the page. The router does not ship with a password, so just click Submit.
4. Click on Wi-Fi Protected Setup or WPS (depending on which router you own) under Wireless in the menu on the left.
5. Click on the drop-down menu at the top of the page and select Disabled.
6. Click the “Apply Changes” button.

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Home Network

We are heavily relaying on the network, or Internet.
Now I would like to share how I connect all my devices in my house.
Internet service is provided by Shaw. It is the only choice in my area.
Connection:
Coaxial cable connect the Modem from the wall. Then connect Modem and my Router A by network cable.
Router A is the heart of my network.
It provide wired connection to following devices:
Xbox
Media Player – Asus O!Play
Network Storage – DLink DNS323, 3.5TB, FTP, File sharing, and BT.
Voip Box A – iTalkBB, provide local phone service.
Voip Box B – SPA-2002, Long Distance Call Service.
Router A also provide Wireless connection to following devices with MAC address filter. Only allowed MAC address can connect it.
Desktop A, for my daughter Grace
Desktop B, for my wife, Vivian and daughter, Gloria,
Laptop
Netbook
iPod Touch
Cellphone A – LG Optimus One
Cellphone B – LG Shine Plus
Wii
DS lite – with a replacement case, still working.
DSi XL
Kindle Keyboard with Wifi
Router A has a wireless connection with Router B. Router B works as bridge.
Router B wired connects to Desktop C
Router B is also working as a printer server by connecting Laser printer with USB port.
Actually, Router A has a Gigabit Switch to extent the ports. Router A has 4 Lan ports only, by connect Switch to it, it can connect 7 devices.

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Buffalo Nfiniti WIRELESS-N WZR-HP-G300NH2

I have a Buffalo Nfiniti WIRELESS-N WZR-HP-G300NH which I bought about one year ago. I also flash the router to DD-WRT firmware.
Now, since I moved to a townhouse, one router can not cover whole house. I need one more to extend the WiFi coverage.
So, I bought another Buffalo Nfiniti WIRELESS-N WZR-HP-G300NH at about $80.
This time, it is version 2. So called Buffalo Nfiniti WIRELESS-N WZR-HP-G300NH2. The main features are same, but shipped with DD-WRT firmware. The customized firmware for Buffalo.
I put the old one on the main floor, and connect it with cable modem as AP. The new router is configed as Client Bridge(routed), and in the basement.
AP, old router, connected all wireless devices. and also connect to the new router with full bandwidth.
New router wired connect PCs in the basement.

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Eye-Fi Explore X2 8GB

I bought a new toy which can work smoothly with the digital camera.
Eye-Fi Explore X2 8GB

Have photos & videos fly from my camera to your computer & favorite sharing site – and see them land already organized by date.
It is simple and easy to use.
Now, I take pictures or videos. Then all these photos and videos will transfer to my DNS-323 FTP server for backup, and if my computer is on, to the designated folder.
There are tons of features you will like.

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Upgrade WZR-HP-G300NH to latest DD-WRT firmware

I have my WZR-HP-G30NH router running for more than 200 days without restart. As I mentioned I would upgrade the firmware to the latest one.
I have already use DD-WRT firmware. The version on my router was v24-sp2(02/24/10) std build13977. I check the router database, the latest I can use is build14896.
There are two types of files can be download from dd-wrt site.
Buffalo WZR-HP-G300NH: Special File for initial flashing buffalo_to_ddwrt_webflash-MULTI.bin
Buffalo WZR-HP-G300NH: Webflash image wzr-hp-g300nh-dd-wrt-webupgrade-MULTI.bin
The first one is used on the buffalo original firmware. Which can replace the buffalo firmware to ddwrt firmware.
The second one is to upgrade router which use ddwrt firmware already. It is for me.

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Buffalo Nfiniti WIRELESS-N WZR-HP-G300NH

Last week, I bought a Buffalo Nfiniti WIRELESS-N WZR-HP-G300NH at NCIX. It is $106.39 with tax.

This device is a router, wireless router, Access Point 802.11B/G/N Draft N Gigabit QoS USB NAS.

The features here:

  •   Designed to IEEE 802.11n Draft 2.0 specifications
  •   Wireless connections up to 300 Mbps*
  •   MovieEngine QoS feature to prioritize streaming traffic
  •   Built-in AirShare Storage USB 2.0 Port
  •   BitTorrent client
  •   Web Access remote Access
  •   Greater coverage compared to standard 802.11g
  •   Easy Setup with AirStation One-Touch Secure System (AOSS)
  •   Enhanced multi-level security with WPA2, WPA-PSK (AES, TKIP) and 128/64-bit WEP
  •   Simple Web Browser configuration, no drivers needed
  •   Includes external switch to change between router and access point modes
  •   Adjustable flip-up antennas
  •   True VPN End point
  •   Built-in 4-port Gigabit Ethernet 10/100/1000 auto-sensing switch for up to 4 simultaneous wired connections
  •   Built-in Gigabit WAN port

*300 Mbps is the maximum wireless signal rate derived from IEEE 802.11n draft standard 2.0 specifications. Actual data throughput and range will vary depending upon network conditions and environmental factors, including volume of network traffic, building materials and construction, and network overhead.

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