XO Troubleshooting Network
From OLPC
This is the portion of the XO Troubleshooting Guide for diagnosing problems with the network connection of an XO laptop.
Under Construction
Contents |
[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
