Also known as WiFi. This tag should be used when asking home WiFi networking questions or connecting your personal computer to a public network. Questions about enterprise or corporate wireless networks are off topic.

learn more… | top users | synonyms (6)

20
votes
5answers
20k 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 ...
20
votes
7answers
68k views

Why is my laptop favoring the wireless connection over my LAN connection?

When my laptop comes out of sleep, I have to typically wait about 90-120 seconds before my network (wireless or NIC card) 'wakes up'. During that time, I see my wireless connection with 'limited ...
20
votes
9answers
95k 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. ...
20
votes
3answers
3k views

Small WiFi webcam for quasi-outdoor use [closed]

I’d like to have a webcam pointed toward my house, so that I can check (via Safari on iPhone) if I left the garage door open, if there’s a package on my doorstep when I’m off on a business trip, etc. ...
19
votes
3answers
63k views

Laptop wireless networking options: 1x1 vs 2x2

I am currently customizing a Lenovo Thinkpad. Under the section "Integrated WiFi wireless LAN adapters" there are two options. Default: ThinkPad 1x1 b/g/n Upgraded: ThinkPad 2x2 a/b/g/n (+$10 AUD) ...
19
votes
2answers
3k views

Where does Windows 8 store the estimated data usage over Wifi?

I accidentally discovered that in Windows 8, if you right-click a previously connected wireless network from the Start screen interface, there's an option to show estimated data usage. Where's ...
18
votes
4answers
60k 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?)
18
votes
2answers
3k views

How can I set WiFi connection order in Windows 10?

I have multiple WiFi networks available, and would like to set the order of preference in which they should connect; i.e. each network's priority. This used to be fairly simple in previous versions of ...
18
votes
3answers
45k 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 ...
17
votes
6answers
2k views

Will the ethernet pull bandwidth if unplugged?

I'm fairly certain that this isn't a problem, but like a phone charger it will still pull electricity even though you aren't charging anything if you leave it plugged into the wall. Though minimal it ...
17
votes
12answers
2k views

What is the most practical security method for a home wireless network?

Quoting Ars Technica: Proper wireless network (802.11a/b/g/n) security is quite simply out of reach for most organizations. ... Given that WEP (both 64- and 128-bit), WPA1/2 (PSK), and ...
17
votes
4answers
32k views

When concurrently connected to wired and wireless ensure Windows 7 uses wired connection

When I am at my desk and my laptop is in its docking station I want to ensure that it uses its wired connection and not my wireless network. I am hoping/guessing that the preference in connection is ...
17
votes
2answers
3k views

Is securing Wifi with MAC Filter enough?

I have a MAC filter in place for everything that connects to my router. I also have WPA2 on the wireless. When a friend comes around, I tell them the password (I trust them), they type it into their ...
17
votes
5answers
11k 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 ...
17
votes
1answer
31k 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 ...
17
votes
4answers
28k views

How to sniff for wireless MAC addresses in area - My laptop got stolen

A few days ago my apartment got broken in, and they took all the electronics, including my $1500 laptop. We are pretty sure it's an inside job (as in someone from the same building), so I believe ...
17
votes
5answers
38k 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 ...
16
votes
5answers
70k 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 ...
16
votes
3answers
14k views

How does Wi-Fi modulate the electro-magnetic wave?

Not sure if this is the right site for this question, but mine is a simple one: Is Wi-Fi AM, FM or a combination of them both?
16
votes
1answer
803 views

Did my network just get hacked?

Something very strange just happened. A long story short, I went on to my computer and it told me that access was blocked to this PC. So I tried to go to 192.168.1.1, but it didn't work on my blocked ...
16
votes
4answers
10k 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 ...
16
votes
5answers
17k 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 ...
16
votes
1answer
267 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
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 (...
15
votes
3answers
2k 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 ...
15
votes
2answers
11k 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 ...
15
votes
3answers
38k 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
votes
3answers
27k views

How to give preference over one network connection over another?

Like most laptops, it has 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, I ...
15
votes
4answers
6k 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 ...
15
votes
5answers
49k views

Adapter to turn wired USB keyboard wireless? [closed]

I've got a wired USB keyboard that I really like. I know it is a long shot, but is there a way to turn it into a wireless (maybe even Bluetooth) keyboard through some sort of adapter or hack?
15
votes
2answers
10k 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 ...
15
votes
3answers
20k 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 ...
15
votes
3answers
70k views

What are pros and cons of b, g and n WiFi standards on the same speeds?

All I need WiFi for is to share a 10 Mbit/s ADSL Internet connection. The apartment is not very convenient for WiFi signal distribution (there are numerous WiFi networks in the area, many wifi ...
15
votes
6answers
34k 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 ...
15
votes
6answers
17k 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 ...
14
votes
2answers
11k 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. ...
14
votes
3answers
80k 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?
14
votes
15answers
58k 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 ...
14
votes
4answers
25k 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 cord-&...
14
votes
4answers
83k views

Which 5Ghz channel to use?

My "better" router has 5GHz channels - 36,40,44,48,149,153,157,161 My not so much better router has 5GHz channels 36,40,44,48,52,56,60,64,100,104,108,112,116,132,136,149,153,157,161 I am ...
14
votes
2answers
17k views

Why do some WiFi routers block multicast packets going from wired to wireless?

I have worked with dozens of consumer grade WiFi routers, and they have been really hit-or-miss with this, though it seems to be getting better. Example of issue: A device that can be discovered ...
14
votes
5answers
56k views

How not to lose Wifi after going to Standby mode?

After 30 minutes my Windows 7 PC goes to Standby. Problem is, when I get it back to normal, Wi-Fi is disconnected. And it doesn't just reconnect and come back in 10 seconds. For example, when I start ...
14
votes
3answers
9k views

How to force Network Manager to rescan connections?

How to force Network Manager in Ubuntu to rescan wireless connections? After closing my laptop, network manager does not see new wireless connections. Is there any bash command to force rescan? sudo ...
14
votes
5answers
19k 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 ...
14
votes
4answers
4k 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 ...
13
votes
1answer
23k views

802.1X: What EXACTLY is it regarding WPA and EAP?

I understand 802.1X to be some sort of port authentication control. However, when I was checking out the encryption settings for my wireless I found 802.1X in a drop down along with WPA2, WPA and WEP, ...
13
votes
5answers
33k 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 ...
13
votes
2answers
48k views

How can I force Windows 7 to give my LAN (wired) conection priority over my WiFi?

Given the choice between my LAN (wired) and my WiFi connections, my Windows 7 PC gives priority to the WiFi - how can I make it prioritize the LAN connection?
13
votes
2answers
37k 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. ...
13
votes
5answers
25k 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 ...