User's Manual

Troubleshooting 145
Computer error messages
Error message Possible causes or solutions
TI-Nspire™
Navigator™ Network
Unavailable
The TI-Nspire™ Navigator™
system cannot locate appropriate
network hardware (for example,
an access point and one or more
wireless cradles). Check your
hardware connections. If you still
see this error, open TI-Nspire™
Network Manager and make sure
your network hardware is
properly configured.
Cannot start a class
session
The TI-Nspire™ Navigator™
system cannot locate the
appropriate network hardware
(for example, an access point and
one or more wireless cradles).
Check your hardware
connections. If you still see the
error, open TI-Nspire™ Network
Manager and make sure your
hardware is properly configured.
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.
Invalid User Name In the Add Student dialog box,
you either did not enter a user
name or you did not meet the
user name requirements. User
names must contain 3 to 12
letters and/or numbers.
TI-Navigator_Help_PRINT.book Page 145 Tuesday, January 26, 2010 10:29 AM