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34

From the Apple Support database article regarding network connection priority: If you connect to the Internet or a network in several different ways (using Wi-Fi or Ethernet, for example), you can change the order of the network port configurations your computer tries when connecting to the Internet or network. If there are multiple active ...


25

For keeping the connection alive, you can check in /etc/ssh_config the line where it says ServerAliveInterval, that tells you how often (in seconds) your computer is gonna send a null packet to keep the connection alive. If you have a 0 in there that indicates that your computer is not trying to keep the connection alive (it is disabled), otherwise it tells ...


23

Sure. Just go to System Preferences/Network, select Wifi and click Advanced. A list with all the Wifi networks you've been connected to will appear. Just rearrange the connection order (the ones you'd like to connect first on top) by drag-dropping. Also, delete any unwanted network SSID (network names) if you no longer want to auto-join that.


19

Do the following: Find out what the network interface is for your wifi. Mine is "en1" for this example (I have obfuscated my MAC addresses with "00") ifconfig en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500 ether 00:00:00:00:00:00 inet6 0000::000:0000:0000:0000%en1 prefixlen 64 scopeid 0x5 inet 10.0.1.16 netmask 0xffffff00 ...


16

This really has nothing to do with unibody or Macs, but is rather due to physics. I'm guessing that you're cooking using a microwave oven or have it running nearby when you're using your laptop. The 802.11b WLANs operate in the 2.4 GHz band. Unfortunately, microwave signals also fall in the same frequency band, and hence can cause interference with your ...


16

It's in your Network Preferences. Here's screen shots from 10.7.3. Access the settings from the gear at the bottom of the network type sidebar. Choose "Set Service Order..." to drag them into the preferred order.


14

If you're just looking for a quick signal strength number, option-click on the AirPort icon in the menu bar. Under the connected network you will see several pieces of information: RSSI is your signal strengh in dB. Higher (closer to 0) is better. If you're looking for noise or the signal strength for multiple access points, I suggest checking out ...


14

Yes. Your phone will be polling periodically for available networks, which will use battery. Even you set it to not ask to join networks, the radio is powered up and that takes some amount of power to do.


12

Try to Option+click on the wifi icon on the menu bar. You'll see a lot more information about your current wifi connection. It looks something lijke this:


12

I had this problem connecting to the local public library system network. The problem seems to be a result of my having specified DNS servers ((i.e. OpenDNS, Google, etc.)) in my Network preferences. The solution was to create a network location called "No DNS" which doesn't have any DNS servers defined and use that network location when I need to log into ...


12

Unfortunately, on the iPhone it is not possible to access this information. The passwords are kept on your phone in a safe place that is not accessible through any regular means on the phone. This is done for your protection, if you were to lose your iPhone and someone picked it up, the passwords that are stored on it would be up for grabs. This would ...


11

The primary concern is that any HTTP communications (and other non-secured communications) could be intercepted, including cookies, which often contain your login information. Note that secure communications (HTTPS) have other methods to keep your information safe, so financial communications are usually safe. The secondary concern is that your Mac can be ...


11

This is possible using iOS 5 and an Apple TV using AirPlay. This only works with iPhone 4S and iPad 2 and all video and sound are mirrored wirelessly to any TV that is connected via HDMI downstream from the Apple TV. You do need a wireless network for the two devices to communicate. Just double-click the Home button, swipe all the way to the right, and ...


11

Open Terminal.app and enter: /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -I You have to be connected to a wireless signal. The output will look similar to the following: agrCtlRSSI: -64 agrExtRSSI: 0 agrCtlNoise: -91 agrExtNoise: 0 state: running op mode: station ...


11

This is a topic I have followed online and in "real life" for several months. Anecdotally, Apple seems to have a wifi problem with the 2012 MacBookAir. I have no firm figures concerning how widespread this situation is, but I know of two other MacBook Air laptops that have displayed this issue: the MBA I purchased in hopes that I could use it attached to ...


10

From Super User: If I have two internet connections on osx, how can I use both to increase my bandwidth?: Short answer: no. With 2 links, you have 2 IP addresses. It can be done with some specific higher end NICs (e.g. Intel quad cards), but they will appear to the rest of the network as a single IP address in that mode. If the assumption is that you ...


10

You don't need to use a separate application. You can share wi-fi without any app. Go to System Preferences>Sharing>Internet Sharing: You will be prompted to enter a network name and a password (if you choose to). It does also require you to have a hard-wired Internet connection. (If you are wondering why my sharing checkbox is greyed out, it's because I ...


10

I'm pretty sure this is not possible to do on vanilla iOS, perhaps with a jailbreak. However, your solution of running two separate WiFi networks is generally not what you want. It is much more common to extend one WiFi network (i.e. a single SSID) with multiple routers. Devices should then automatically switch to the access point with the stronger signal. ...


10

You have to be jailbroken. If you are, check out Wifi Passwords on Cydia.


10

Mac OS X Mountain Lion supports Internet Sharing using WPA/WPA2. You will need to upgrade to get this functionality. This article has a little more info. And here is a screenshot of the new option for WPA2 in Mountain Lion (10.8):


10

You should define a STATIC address for the WiFi/LAN. (define an correct netmask, and dont enter any router/gateway address ). (see the static tab in the @Michiel's screenshot.) When you done, you can access the computers on WiFi network and you will access the rest of the Internet via 3G. This is what you looking for?


9

When you're connected to the Wi-Fi network, hold down option and click the Wi-Fi icon in the OS X menubar. You'll see additional details about your connection, including one item labelled PHY Mode:. That will show you whether you're connected via 802.11ac, n, g, etc. There's also a Channel: entry that tells you the radio frequency and channel.


9

The iPhone uses assisted GPS to improve the accuracy of the location system using GPS and cell towers. Wi-Fi networks are used to help determine the device's location; this is called a hybrid positioning system (XPS). Prior to iOS 4 iOS tapped into the Skyhook Wireless database of Wi-Fi hotspots and their locations. Apple disclosed in April 2010 that they ...


9

You can do this with USB or Bluetooth tethering on jailbroken iOS devices using an app such as MyWi. There are many other jailbreak apps for this function, so it's worth shopping around. Some will only share the 3G internet connection, but I understand others will share any internet connection over USB or bluetooth. You can't use wifi tethering to ...


9

The network architecture in Windows 7 has been redesigned and is more advanced than being able to just create a WiFi hotspot. On a Mac, you can create a WiFi hotspot, only if it is from an Ethernet/RJ45, modem (3G/dun/PPP), Bluetooth or FireWire Internet connection as your source. The built-in hotspot will then use either of these source Internet ...


9

Yes, you can use the device as if it were an iPod Touch without cellular service. No need to remove the SIM. It will automatically be deactivated when your new phone is activated. You can also purchase a prepaid SIM from a service using provider network to which the phone is attached if you'd like to use it as an emergency or burner phone. For example, h2o ...


9

There's an airport utility buried that you'll want to use. Create a symbolic link in /usr/bin to the utility for quick access with this command: sudo ln -s /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport /usr/sbin/airport Now, you should be able to run airport -s and get a list of available networks with BSSIDs. ...


8

Seems like no way to do this at the moment. Workaround: The only solution seems to be to rename a spare access point to the SSID of the network you want to forget, connect to it with the iPhone, and choose the option to forget the network. This kludge seems like a lot of work and something that an average user probably doesn’t know how or want to do ...


8

Remove it from the list of "Preferred Networks" and it will stop auto-connecting. Go to "System Preferences" > "Networks" prefpane. Choose "AirPort" (or "WiFi" on Lion) on the left. Click the "Advanced" button. In the resulting sheet, choose the "AirPort" (or "WiFi") tab. (It should be the leftmost.) Select your neighbor's wifi network in the list and hit ...



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