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diff --git a/source/troubleshooting_connectivity.markdown b/source/troubleshooting_connectivity.markdown deleted file mode 100644 index 97ea6cf..0000000 --- a/source/troubleshooting_connectivity.markdown +++ /dev/null @@ -1,221 +0,0 @@ -% Troubleshooting Connectivity -% -% - -You can look at -[http://wiki.laptop.org/go/Support\_FAQ](http://wiki.laptop.org/go/Support_FAQ) -for many technical troubleshooting tips, but you should read through all -the information on this page to troubleshoot the wireless connectivity -yourself. Understanding wireless router configuration - -Connect your router to any computer, and then use a web browser to view -the router's configuration page and change the router's settings. - -Here are some common router manufacturer's administrative addresses, -usernames, and passwords used for configuring router information. To -find a more complete list, you may try visiting another computer that -has an internet connection (for example, the local library) and -searching the Internet for router default logins. Router - - ----------------------------------------------------------- - Manufacturer Address Username Password - ------------- --------------------- ----------- ----------- - 3 Com [http://192.168.1.1]( admin admin - http://192.168.1.1) - - D-Link [http://192.168.0.1]( admin - http://192.168.0.1) - - Linksys [http://192.168.1.1]( admin admin - http://192.168.1.1) - - Broadband [http://192.168.2.1]( admin admin - http://192.168.2.1) - - Netgear [http://192.168.0.1]( admin password - http://192.168.0.1) - - Gateway2Wire [http://192.168.1.254 - ](http://192.168.1.25 - 4) - ----------------------------------------------------------- - -If you are unable to connect a computer to your router to do this, call -your Internet Service Provider and ask them for assistance. They should -be able to access your router remotely, get the needed information for -you, and even make any needed changes. - -Your wireless router settings may contain Wired Equivalent Privacy (WEP) -or Wi-Fi Protected Access (WPA) for security protection. Find out which -type of security it uses and the passphrase either by asking your ISP or -by using the router's configuration pages. - -Based on the type of security system being used (WPA or WEP), the -Wireless Key type varies. For WPA, you use a Passphrase key (for -example, "password", "tHisisAp4ssword"). For WEP, use either a Hex key -(for example, "4f4c504321", usually all keys that consist of only of 0-9 -and a-f) or its corresponding ASCII key ("OLPC!"). 40-bit Hex keys are -10 letters/numbers long, corresponding to 5 letter/number ASCII keys. - -Common connectivity problems and solutions -========================================== - -Inability to connect with an Access Point from the Neighborhood View is -the most commonly reported symptom. The symptom is usually a flashing -circle icon where the access point circle icon never appears in the -Frame or the circle's menu never contains "Connected." This flashing -animation indicates the XO is trying to connect, but the lack of -connection indicators tells you that it fails to connect. If this -happens, try the troubleshooting suggestions just below. Is the wifi -hotspot dot visible in the Neighborhood View? - -Go to the Neighborhood View and type the name of your SSID in the Seach -box to highlight your access point. Each circle network icon represents -a Service Set Identifier (SSID). On one of the icons in the Neighborhood -View, you should see your Wi-Fi hotspot's network name. - - -If you cannot see the network name there may be a few reasons for this, -so continue troubleshooting. - -Is the name of the network a hidden SSID? -========================================= - -If your SSID/Network Name is set to be Hidden in the router -configuration, it is not possible for the XO to connect to your wireless -network through the Sugar User Interface. - -You may connect manually by typing commands in the Terminal Activity. To -do so, launch the Terminal Activity and type these commands: - - su -l - /sbin/iwconfig eth0 mode managed essid myhiddennetwork - /sbin/dhclient eth0 - -As an explanation, the su command creates a root process. The iwconfig -command connects to your hidden network (of course, substitute the name -of your access point for the string myhiddennetwork in the above -example). Finally, dhclient asks for an IP address from the access -point. - -Is your Wi-Fi router filtering connections based on a MAC Address? -================================================================== - -You can prevent other computers from using your wireless router by -configuring it to filter by MAC Address. A MAC Address is a unique -address embedded in your computer's network adapter. While MAC address -filtering is not a secure method of protecting a network, some routers -use it, and it could prevent your XO from using that access point. - -To fix a filtering problem, you can find the MAC Address and add it to -the list of allowed computers that can connect with the wireless router. - -To do so, launch the Terminal Activity and type these commands: - -:: - -/sbin/ifconfig -a eth0 - -The MAC address is in the first line next to the HWAddr tag: and is in -the form of "00:17:C4:XX:XX:XX" - -In the WiFi router configuration for filtering, add the MAC Address you -found with the ifconfig command. - -Is your WiFi router configured to support 802.11b or 802.11g or both? -===================================================================== - -Read the documentation for your wireless router to determine how to -configure it for 802.11g support, or to determine if it is using the -802.11g protocol. In this example, the Mode drop-down list is where you -would look for protocol settings. It may not work to have both g and b -modes as shown, so try different configurations to see if another -configuration works. - -Are the access point settings not in channels 1, 6, or 11? -========================================================== - -Is your access point working on another channel that is not in 1, 6, or -11? For some older builds, the XO expects to find access points in one -of these three channels, the three non-interfering channels available to -802.11g wireless protocol. - -Try changing your access point to one of the three channels and check if -you can associate your XO to it. Refer to your access point's -documentation for information on changing the frequency channel that -your access point broadcasts on. This image shows an example of the -settings for a wireless router. The Channel field is where you change -the frequency setting. - -Why can't the XO Browse when connected? -======================================= - -Symptom: Your XO shows that your Internet connection is working, but you -cannot browse or search any pages. - -Most likely, the XO has failed to receive DNS information from your -internet access point. If this is the case, you would be able to access -the Internet for sites named directly with IP addresses but not their -common names. In other words, -[http://209.85.133.18](http://209.85.133.18) would work but -[http://www.google.com](http://www.google.com) would not. - -Verify what the XO has received (from the Internet access point) for DNS -information by using the Browse Activity and looking at this URL: - -[file://localhost/etc/resolv.conf](file://localhost/etc/resolv.conf) - -This page should show the IP address of the DNS server assigned by the -Internet access point. If there isn't an IP address on this page, or if -the IP address assigned is wrong, this would account for the behavior -you're seeing. - -If there is no IP address, or the address is wrong, you'll need to -determine why the Internet access point is failing to supply one, but -this is likely to be misconfiguration of the access point. - -Connecting to the Internet without wireless access -================================================== - -If you cannot successfully or consistently connect to the Internet using -Wi-Fi, you can use a USB-to-Ethernet connector to hook up to a wired -connection rather than wireless. Examples of products that have worked -for other users include the Linksys USB100M and the Zoltan Tech USB2.0 -Fast Ethernet adapter, which cost about USD \$10-\$25. - -If you want to connect to your XO wirelessly with a dial-up connection, -you can do it with an older version of Apple's Airport Extreme (A1034). -Apple no longer sells them, but they are available on the Internet for -between \$18 and \$36. Be sure the one you get has a port for the phone -line, and preferably, with a phone cord included. Directions for -connecting with it are on the Wiki at -[http://wiki.laptop.org/go/Wifi\_Connectivity\#Apple\_Airport](http://wiki.laptop.org/go/Wifi_Connectivity#Apple_Airport). -Connecting while traveling - -Your XO makes a wonderful traveling companion. You can connect to a wide -variety of public WiFi sites often found in community centers and -libraries, even in restaurants and hotels. All you will need to do is to -obtain a correct password and log on according to the instructions -above. Many places will not require a password to connect and the -process will be even easier. Remember, however, that passwords provide -an extra layer of internet security. Without them, you run a slightly -higher risk of experiencing some type of Internet fraud. - -author -: - -> © adam hyde 2008 -> -> Anne Gentle 2008 -> -> Brian Jordan 2008 -> -> Caryl Bigenho 2008 -> -> A Holt 2008 -> -> Sandy Culver 2008 -> -> Tom Boyle 2008 -> -> G Hunt 2012 |