A wireless network is any kind of computer network that is connected through a wireless medium, primarily known as using a wireless router creating a WLAN (Wireless Local Area Network).

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16
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6answers
9k views

Is https traffic over an unencrypted wireless network secure?

This is something I've wondered for a long time. If I am, say, using Gmail over https, can someone read my IM conversations and emails if I use an unsecured wireless network? I assume that the data ...
16
votes
1answer
264 views

Getting internet to a protest

I'm not sure if this is the right place to ask this question, but it's been in the back of my head for a while. I am in Turkey, where there are thousands of protestors gathering in the street against ...
15
votes
5answers
63k views

Wireless vs. Wired: which is faster?

I have the option of hooking up my machines to the internet either wirelessly or via ethernet cable (wired). I'm curious as to which is faster; the approximate wireless signal strength (average) is ...
15
votes
8answers
68k views

Can you explain how to understand what the 'iwconfig' command displays in Ubuntu-9.04?

I'm having trouble making my wireless connection work, and I realized I don't really know how to use the tools I have, in this case, the iwconfig command in Ubuntu-9.04. Here is what I get: ...
15
votes
5answers
27k views

How does Windows 7 decide which route to take if 2 connections to an internet source exist? (e.g. a Wireless and an Ethernet one to a router)

How does Windows 7 decide which route to take if 2 connections to the Internet exist? (e.g. wireless versus wired)
15
votes
3answers
37k views

Where Are Wireless Passwords Stored on Mac OS X?

After the Snow Leopard update I can't connect to my home wifi router. I removed it from Network Preferences and from Keychain but when I reconnect it will not ask me for the password. All other ...
15
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4answers
52k views

Tethering on Windows 7?

Is there an option in Windows 7 (or 3rd party) to offer Tethering (that is, act as a WiFi hotspot while being connected to a WiFi network?)
15
votes
1answer
19k views

List Available Wireless Networks from Command Line

I'm currently trying to do some physical debugging with one of our devices. It would be very useful to be able to use a command to output a list of available wireless networks to the command line or ...
14
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4answers
2k views

Can long range Wi-Fi work if one end of the connection is not using a high-gain antenna?

I am trying to understand how long range Wi-Fi works. As far as I know, Wi-Fi consists of Tx and Rx. When a laptop is connected to an access point (AP), the laptop is able to receive data from the AP ...
14
votes
5answers
12k views

Difference between wifi router and access point?

I see both terms used, and I was wondering what the difference is between a wifi router, and a wifi access point. Does the latter only create a LAN, with no way to connect the wifi box with a second ...
14
votes
6answers
18k views

Merging two incoming broadband lines for faster internet

We have a broadband line coming into our building which delivers around 8-10mbps, which is ok but not great, although fibre is available in our area (30-100mbps) its not available where we are just ...
14
votes
4answers
4k views

Negative ping time?

This is the first time I've seen this and I'm not sure what it means; 64 bytes from 74.125.93.99: icmp_seq=6233 ttl=53 time=545.493 ms 64 bytes from 74.125.93.99: icmp_seq=6234 ttl=53 time=776.093 ...
14
votes
2answers
7k views

How to run a program when connecting to a specific network in Windows 7

I want to have an executable run every time I connect to my wireless network at home. The purpose is to sync a folder on my laptop with my desktop machine. Is there any way run a program or script ...
14
votes
5answers
13k views

Windows 7 Automatically Connecting To Unsecured Wireless Networks On Startup

Most of the questions on this topic related to folks connecting to somebody else's wireless network when their own was available and could remedy the situation by going to their connections and ...
14
votes
3answers
18k views

Share a Wifi connection through wifi on Mac OS X

I have a WiFi connection and I would like to share it through my WiFi card to computers. For some security reason, it seems that only one device can access the WiFi connection directly. This is why I ...
14
votes
6answers
25k views

What angle is optimal for the antennas on my wireless network card?

I'm sharing a house with some friends and I'm in the bedroom right up in the attic. The router is right down on the ground floor and I get connectivity issues. I've found that if I adjust the two ...
14
votes
4answers
14k views

Wired to wireless bridge in Linux

I am attempting to set up my Raspberry Pi as a bridge, using Debian wheezy. I have a hostapd.conf: (some details changed for security, and yes, I know WEP is no good)... interface=wlan0 bridge=br0 ...
13
votes
9answers
65k views

Are routers limited to number of devices?

I'm going to buy a new router, but, I've just realised that for nearly all routers I've looked at (Belkin, Netgear, D-Link) don't state the maximum number of devices which can connect concurrently. ...
13
votes
2answers
6k views

Is Bluetooth faster than Wi-Fi?

I notice that on my iPhone, when I use my personal hot-spot to distribute Wi-Fi, if I have Bluetooth enabled, the phone will make a Bluetooth connection to my laptop instead of a Wi-Fi connection. ...
13
votes
7answers
8k views

Disable WLan if Wired/Cable Network is available

The question says it all. All i want is that my W-Lan connection should be disabled whenever a wired connection is available. What would be the easiest way to do that in Ubuntu/Gnome? In all guides ...
13
votes
15answers
48k views

Windows 7: Wi-Fi connection drops intermittently - only returns after “Troubleshoot connection” resets the adapter

On our laptop (running Windows 7) the Wi-Fi connection drops intermittently. Symptoms: Connectivity is suddenly lost, and the "signal strenght" indicator in the tray shows zero strength and a yellow ...
13
votes
2answers
1k views

If two devices are emitting a wifi signal in the same frequency at the same time and reach an antenna at the same time, how can the data not overlap?

I mean, I know each packet is sent with a MAC address, but what about streaming? What happen if while the router is receiving one packet, a packet from another device arrives? How can the router ...
13
votes
4answers
15k views

500 Mbit/s powerline network, only 3.5 Mbyte/s transfer speed?

I have a TP-Link 500 Mbit/s Gigabit Powerline Adapter linking two computers (one Windows Vista and one Windows 7) in different rooms in the house. As in: Computer <-Ethernet ...
13
votes
3answers
34k views

Why use wifi channels other than 1, 6 or 11?

Wifi channels 1, 6 and 11 do not overlap. However, any channel in between them does. e.g. channel 3 would use some of the frequency band of channel 1 & 6, and channel 9 would use some of the ...
13
votes
3answers
16k views

How to give preference over one network connection over another?

Like most laptops, it has both both ethernet and wireless networking options. Likewise, I have a wireless router with 10/100/1000 Mbs. 90% of the time, wireless speeds suffice. But once in a while, ...
13
votes
3answers
8k views

Prevent outgoing traffic unless OpenVPN connection is active using pf.conf on Mac OS X

I've been able to deny all connections to external networks unless my OpenVPN connection is active using pf.conf. However, I lose Wi-Fi connectivity if the connection is broken by closing and opening ...
13
votes
3answers
28k views

How to take advantage of two Internet connections (WiFi / Wired)?

I have two separate internet connections, one through WiFi and other Wired. However, generally I have observed that Windows try to use only one ( mostly faster one/ Or Wired by preference - I am not ...
12
votes
7answers
6k views

Why is MAC-based authentication insecure?

Most wireless routers can use MAC-based authentication as part of their overall security scheme. It seems like a good idea, but I've heard that it is very ineffective, because it's easy to spoof MAC ...
12
votes
3answers
55k views

What's DMZ used for in a home wireless router?

As far as I understand, by using DMZ you expose all of the host computer's ports to the Internet. What's that good for?
12
votes
2answers
102k views

What is the difference between 2.4G and 5G wireless?

I just got a new "dual band" wireless router. The sales rep didn't really understand the difference between the "2.4G" and "5G" wireless networks that the router supports. Can anyone please explain ...
12
votes
5answers
26k views

Is Bluetooth tethering slower than WiFi?

I'm tethering a Galaxy Nexus (running Android 4.0) with my Macbook Pro (2009 model, running Mac OS X 10.7). What's the difference between Bluetooth and WiFi tethering in terms of: latency bandwidth ...
12
votes
4answers
4k views

Automatically prefer Ethernet over WLAN

Is is possible to force IP connections over the wired ethernet if it is connected and over wireless LAN if the wired ethernet is unavailabe (e.g. cable disconnected). Both network connections would be ...
12
votes
2answers
26k views

Whats the significance (if any) of wifi channels 12-14?

I have a couple of devices that appear unable to see my router's WiFi signal when its put up on channel 12, 13, or 14. Some newer devices work fine without any problems. Others cannot see the signal. ...
12
votes
2answers
3k views

How can I detect unauthorized access on my 802.11 g/n network?

I am using a wireless network and I want to make sure that no unauthorized users are connecting through my access point. I am using the standard encryption the device supports. I know it is a ...
12
votes
4answers
27k views

How do I configure my Linksys routers to resist the WPS brute-force vulnerability?

US-CERT recently released Vulnerability Note VU#723755. http://www.kb.cert.org/vuls/id/723755 In short, this describes how modern wireless routers can have their PSKs discovered within just a matter ...
12
votes
9answers
36k views

MacBook Air constanty drops wifi connection

My MacBook Air keeps dropping wifi connection on my home network. When I connect to my network, it remains connected for a few minutes, then it drops the connection. I have no idea what's the problem. ...
12
votes
1answer
27k views

Windows 7 - Wireless connection before login possible?

Is there a way for Windows 7 to connect to a wireless network before a user has logged in? I have found no good answers to this question elsewhere. Some say it should already be happening if I am ...
12
votes
4answers
2k views

Encrypted WiFi with no password?

Is there any standard that allows a WiFi connection to be encrypted, but not require a password? i know that (old, weak) WEP, and newer WPA/WPA2 require a password (i.e. shared secret). Meanwhile my ...
12
votes
2answers
18k views

How do I decrypt WPA2 encrypted packets using Wireshark?

I am trying to decrypt my WLAN data with Wireshark. I have already read and tried eveything on this page but without any success (well, I tried the example dump on that page and succeeded, but I fail ...
12
votes
5answers
8k views

Set Ethernet Network as Metered Connection in Windows 8

Windows 8 introduced a new feature which allows users to set any Wi-Fi network as metered so that they can check their bandwidth usage: [img credit] But, it doesn't allow users to set any Ethernet ...
11
votes
2answers
7k views

Should uploading a file on DSL kill the download speed?

I have the 20,127/893 Kbps service through CenturyLink DSL. I've ran speed test and it typically reports speeds close to that. Except whenever I upload something substantial. Like a video file to ...
11
votes
5answers
17k views

Unable to ping local machines by name in Windows 7

I'm having a strange (and persistent!) problem with pinging local machines on my network by name. I believe my machine (Windows 7 64-bit) is the only one having this issue. This is over a wireless ...
11
votes
2answers
764 views

Playing large video files over wireless network. What technical specification should I look for when buying wireless router?

I have a Windows 7 desktop with a folder shared out joined to a wireless network. I regularly use my Android tablet (also joined to the same wireless network) to play video files that ranged from 1GB ...
11
votes
1answer
2k views

Why does my microwave kick out the internet

I have had a standard Internet setup in my home network for many years and my router is set to 2.4 ghz but I just recently got a new microwave and every time I use it the Internet seems to kick out ...
11
votes
4answers
43k views

How can I connect 2 windows 8 machines with WiFi Direct?

I noticed I have a WiFi direct network adapter in Device Manager. Did a bit of research and it provides peer-to-peer communication between two devices using WiFi. I searched on how to treansfer files ...
11
votes
3answers
5k views

Windows 7 machine makes router drop ALL wireless connections

Some background: My home network consists of my desktop computer, a two-month old Windows 7 (x64) machine which is online most frequently (N-spec), as well as three other Windows XP laptops ...
10
votes
3answers
77k views

Is the wifi password stored somewhere in windows-7? [duplicate]

One of my friend connected me to the wifi in our area . Now my computer automatically connects to that wifi. I don't need to enter the password. I wanted to browse internet using my android phone. ...
10
votes
8answers
30k views

Is possible to boot on PXE over a WiFi device?

As I know it is possible to boot up some bootable images (like Linux, Clonezilla, management applications and others) over a PXE (Preboot Execution Environment) server with an Ethernet device (802.3). ...
10
votes
8answers
29k views

File transfer speed over Wifi 54g?

What's the maximum transfer speed you get, (or I can get) for files transfer between two wifi-connected computers ? Im on computer A trying to copy a big file from computer B, they are side by side ...
10
votes
8answers
2k views

Which methods help to improve wireless signal?

My router is in my family room, and there's not much I can do to move it, it's in the corner of the house. My room and computer is upstairs and I only get a signal strength of about 17 percent while ...