User manual

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Troubleshooting
This section provides troubleshooting information related to the
TI-Navigator™ hardware and the Network Manager software. For
information about the TI-Navigator™ software, see the TI-Navigator™
Reference Guide or TI-Navigator™ Help.
Lost connections
Certain actions, such as resetting the access point, can cause the
TI-Navigator™ network to lose its connection to one or more hubs. This
can occur even when Network Manager reports that the hubs are
responding.
If you attempt to transfer data to or from calculators, and some of the
hubs do not respond (even though they are listed as “found”), try one of
the following remedies:
• Disconnect the network connector from the offending hub, and then
re-connect it. Make sure the data cable from the calculator is
properly connected to the network connector.
-or-
• Use a ball point pen to reboot the hub.
To reboot a hub, hold the reset button for 2–3 seconds and release it
while the LEDs are still blinking. This reboots the hub but does not reset
the hub to its factory defaults, which happens when you hold the reset
button until the LEDs emit solid amber. Rebooting a hub allows it to be
reassociated with the access point. Resetting the hub to its factory
defaults will remove the hub entirely from the network.
Calculator device not responding
If you save an assignment from LearningCheck™ Creator with a title that
has 65 or more characters, and one or more of the first 65 characters is a
special character (such as a division symbol), the assignment could cause
TI-73 Explorer™, TI-83 Plus, TI-83 Plus Silver Edition, TI-84 Plus, and TI-84
Plus Silver Edition calculators to stop responding. To prevent this
problem, avoid creating assignments with long titles and special
characters. Try to use titles that contain only letters of the alphabet,
numerals, and spaces.