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- wong chee tat :)
Showing posts with label wireless. Show all posts
Showing posts with label wireless. Show all posts
Friday, July 25, 2014
Cisco Wireless Residential Gateway Remote Code Execution Vulnerability
- wong chee tat :)
Friday, February 21, 2014
Broken Windows, Broken Wireless
Someone came to me with an interesting problem:
The laptop has a problem with the wireless. Whenever anyone tries to connect to wireless, Windows 7 simply eeks out and produces Blue Screen of death (BSOD or simply the dread Blue Screen). Connecting to lan cable works. How to resolve that? And what is the problem?
Let us do this way:
On and off the wireless button. We can see that the laptop can detect the wifi signals - that is good.
Test that out: I'm using my phone as a hotspot and tries to connect to the laptop. Once it got my password or passphase, and before it even connects, the dread Blue Screen comes.
What does that info from Blue Screen says?
STOP 0x0000007F ( 0x0000... ....)
Googling provide some hints:
• Low-level hardware corruption, such as corrupt memory (RAM)
• Mismatched memory modules
• A malfunctioning motherboard
Other links point to problematic software programs.
Suspecting driver issue, but reinstalling the correct driver doesn't help. It crashes again with the same Blue Screen. So what is next? What options do we have?
Lets us zoom in....
So, is it a hardware or software problem?
Suddenly, I though of an idea. Why don't we test Linux out and there is no harm (and fun) testing ? Pump in Linux live cd and then connect to my hotspot. If it is able to detect and connect to my hotspot, then we know that there could be problem with Windows and the probably some corrupted software drivers. If it is a hardware issue, then connecting via Linux would likely fail as well. Then we can get the hardware replaced. That would simplify matters. Tested and able to get connected.
Format it and reinstall Windows 7 and start from scratch. Tested if is able to connect to wifi. It does! Cheers!
References:
http://support.microsoft.com/kb/137539
http://support.microsoft.com/kb/822789
- wong chee tat :)
The laptop has a problem with the wireless. Whenever anyone tries to connect to wireless, Windows 7 simply eeks out and produces Blue Screen of death (BSOD or simply the dread Blue Screen). Connecting to lan cable works. How to resolve that? And what is the problem?
Let us do this way:
On and off the wireless button. We can see that the laptop can detect the wifi signals - that is good.
Test that out: I'm using my phone as a hotspot and tries to connect to the laptop. Once it got my password or passphase, and before it even connects, the dread Blue Screen comes.
What does that info from Blue Screen says?
STOP 0x0000007F ( 0x0000... ....)
Googling provide some hints:
• Low-level hardware corruption, such as corrupt memory (RAM)
• Mismatched memory modules
• A malfunctioning motherboard
Other links point to problematic software programs.
Suspecting driver issue, but reinstalling the correct driver doesn't help. It crashes again with the same Blue Screen. So what is next? What options do we have?
Lets us zoom in....
So, is it a hardware or software problem?
Suddenly, I though of an idea. Why don't we test Linux out and there is no harm (and fun) testing ? Pump in Linux live cd and then connect to my hotspot. If it is able to detect and connect to my hotspot, then we know that there could be problem with Windows and the probably some corrupted software drivers. If it is a hardware issue, then connecting via Linux would likely fail as well. Then we can get the hardware replaced. That would simplify matters. Tested and able to get connected.
Format it and reinstall Windows 7 and start from scratch. Tested if is able to connect to wifi. It does! Cheers!
References:
http://support.microsoft.com/kb/137539
http://support.microsoft.com/kb/822789
- wong chee tat :)
Friday, March 8, 2013
S'pore govt unveils plans to boost infocomm and media industry
- (Photo by Sean Gallup/Getty Images) - Consumers can expect faster Wi-Fi access from Wireless@SG from April onwards.
Faster free public Wi-Fi network access islandwide.
Digital free-to-air television channels by the end of the year.
Over S$182 million in budget more for locally-produced programmes on culture and heritage.
These were among the wide-ranging plans to boost the info comm and media infrastructure announced by Minister for Communications and Information (MCI) Yaacob Ibrahim in Parliament on Friday.
Wi-Fi speeds on Wireless@SG will be bumped on from 1Mbps to a maximum 2Mbps from next month.
"IDA will enhance our national wireless infrastructure by expanding the capacity and speed of Wireless@SG," said the Minister during the debate on the recently unveiled Budget.
Aside from faster speeds, the login process
for Wireless@SG will also be simplified from next April with users only
needing to log-in once instead of repeated sign-ins currently. This will
be possible because Digital free-to-air television channels by the end of the year.
Over S$182 million in budget more for locally-produced programmes on culture and heritage.
These were among the wide-ranging plans to boost the info comm and media infrastructure announced by Minister for Communications and Information (MCI) Yaacob Ibrahim in Parliament on Friday.
Wi-Fi speeds on Wireless@SG will be bumped on from 1Mbps to a maximum 2Mbps from next month.
"IDA will enhance our national wireless infrastructure by expanding the capacity and speed of Wireless@SG," said the Minister during the debate on the recently unveiled Budget.
"This will complement our mobile networks and allow subscribers to more seamlessly shift from 3G/4G networks to Wireless@SG," said Dr Yaacob.
Turning to the media industry, free-to-air channels 5, 8, Suria and Vasantham will begin broadcasting in hi-definition by the end of the year. Other channels like Octo would do so only in 2016.
By April, consumer labels to identify digital TV sets will be available on televisions and separate set-top boxes.
The Media Development Authority (MDA) will ensure low income and the elderly will also benefit from this.
Dr Yaacob also said the MCI is still reviewing their media convergence plan and are looking at these areas: content regulation, encouraging local content, copyrights and licensing framework.
Regarding local content, Dr Yaacob said it would devote another S$182 million to increase the quality and quantity of public service broadcast (PSB) programmes over the next four years to focus on local heritage and culture.
This amount is on top of a S$630 million budget that had been earmarked for public service programmes earlier in July 2012, spread across five years till 2016.
- wong chee tat :)
Sunday, October 31, 2010
How to setup a wireless connection
How to setup a wireless connection
Fri, 01/19/2007 - 21:29 — Ciprian
In
this tutorial we will show you how to connect to a wireless network
using Windows Vista. As you will see by yourself this is a pretty simple
procedure. You don't have to be a computer genius to connect to a
wireless network. All you have to do is follow these simple steps:First, go to "Start Menu" -> "Control Panel" -> "Network and Internet".
Now... go to "Network and Sharing Center" and select "Connect to a network", like it is shown in the above screenshot.
Choose "Show All" and hit the refresh button. If you find active network connections, select the one you want, click on "Connect" and don't forget to check the option that says "Start this connection automatically". If you check this option, Windows Vista will connect automatically to the selected network every time you log in.
If no networks are found, you can manually enter all network settings. This is how you do it:
In the “Connect to a network” window, click on “Set up a connection or network”, like shown in the above screenshot. Select “Manually connect to a wireless network” and press the “Next” button.
First, enter the “Network name”. In some cases the network name is identical to the name of the router - for example, my router is a Linksys, so the name of the network is Linksys.
Choose the security type and the encryption you use on your network. Now type the security key and check the option "Start this connection automatically".
Click the "Next" button, then click "Connect to..." and that should be all. You successfully configured a connection to a wireless network.
Do check the wireless is ON before doing the steps above especially for laptops.
- wong chee tat :)
Thursday, June 11, 2009
Dlink DIR-615
Went to the PC Show at Suntec and looking for DIR-615. Well, it is getting crowded. Noticed that the hardware version is version B, but I'm looking for the C1 or later version. Though DIR-855 is out in the market, but it is still expensive and it costs twice as much as DIR-615!
There are some shops nearby the area selling the same device, though slightly more expensive, but hardware version is C2, firmware: 3.01.
- wong chee tat :)
There are some shops nearby the area selling the same device, though slightly more expensive, but hardware version is C2, firmware: 3.01.
- wong chee tat :)
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