From OLPC

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This is the portion of the XO Troubleshooting Guide for diagnosing problems with the network connection of an XO laptop.

Under Construction

Contents 1 Qualifications 1.1 Location 1.2 Installed Software 2 Are all network icons (circles) missing from the neighborhood view ? 3 A known network is missing from the neighborhood view 4 Laptop always joins simple mesh 1 5 Clicking on an access point doesn't work 6 Software Tools 6.1 XO Self-test 6.2 Sugar Tools 6.3 Linux Tools 7 Other Debugging Guides

[edit] Qualifications

[edit] Location

[edit] Installed Software

[edit] Are all network icons (circles) missing from the neighborhood view ?

[edit] A known network is missing from the neighborhood view

[edit] Laptop always joins simple mesh 1

[edit] Clicking on an access point doesn't work

[edit] Software Tools

[edit] XO Self-test

A Hardware Self-Test is included in the XO laptop. It includes a test of the networking hardware, where it communicates with the networking interface and prints out a list of the access points (SSIDs) seen in a scan of the local networks.

[edit] Sugar Tools

Sugar indicates the state of the network in a number of different ways. The user interface of Sugar is changing, in particular with respect to indication of network status, in an upcoming (9/08) release, 8.2

Hovering the pointer over the network icon (circle) in Home Screen provides information about what network the laptop is currently connected to. The absence of a network icon (circle) in the Home Screen may indicate a problem with the networking hardware, but is also frequently associated with software bugs.

The neighborhood view should show a circle for each WiFi (802.11b/g) access point in range, plus three more for the built-in mesh channels. Hover over a circle to see the SSID (name) of the access point or the number of a mesh channel.

[edit] Linux Tools

Need links for these tools, accessible using the Terminal activity (or vtty on most laptops):

• lsusb
• iwconfig
• ifconfig

[edit] Other Debugging Guides

• An introduction to using the XO with WiFi access points
• The WiFi Troubleshooting Guide