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Troubleshooting 257
Computer error messages
Error message Possible causes or solutions
TI-Navigator
Network Unavailable
The TI-Navigator™ system cannot
locate appropriate network
hardware (for example, an access
point and one or more hub).
Check your hardware
connections. If you still see this
error, open TI-Network Manager
and make sure your network
hardware is properly configured.
Cannot start a class
session
The TI-Navigator™ system cannot
locate the appropriate network
hardware (for example, an access
point and one or more hubs).
Check your hardware
connections connections. If you
still see the error, open
TI-Network Manager and make
sure your hardware is properly
configured.
There was a problem
reading your
equation around
character
X.
In the Activity Center tool, you
are not using the appropriate
syntax in an equation. Equations
must use uppercase letters for
variables, lowercase letters for
functions, and not have any
spaces.
Invalid First Name In the Add Student dialog box,
you did not enter the student’s
first name or you included invalid
characters in the first name.
Invalid Last Name In the Add Student dialog box,
you did not enter the student’s
last name or you included invalid
characters in the last name.