Teacher FAQ for
TI
-
Nspire
™
CX
Navigator
™ 4.2
What is the wireless technology used in the TI-Nspire™ CX Navigator™ classroom system?
The TI-Nspire™ Navigator™ classroom system uses Wi-Fi wireless technology to connect the TI-Nspire™ handhelds to the
access point (AP). This is the same technology used in home wireless routers and other electronic devices like laptops
and smartphones.
What is the recommended configuration (application version, TI-Nspire™ CX handheld OS release, etc.) for my TI-
Nspire™ CX Navigator™ classroom system?
You should have version 4.2 of the TI-Nspire™ Navigator™ desktop application and version 4.2 of the OS on the TI-
Nspire™ handhelds. Note: Once the TI-Nspire™ handhelds have been updated to 4.2, they cannot be downgraded to an
earlier version.
Some of my students get the “Communication failed. Check the connection” error message when they try to log in.
What’s causing this?
Please ensure that the AP is plugged in and detected by the TI-Nspire™ CX Navigator™ desktop software and that you
have started a class before the students attempt to log in. Also, confirm that the connection between the TI-Nspire™
handheld and the wireless client (wireless network adapter) is secure.
Some of my handhelds have disconnected. What should I do?
The handhelds will sometimes disconnect from the network but they should attempt to re-connect on their own. This is
similar to what happens in your home when your computer temporarily disconnects from the wireless router. In case
the handhelds don’t reconnect within 30 seconds, please attempt the following steps:
1.
To connect to the desired network on the handheld, press the following sequence ‘
Home
button > Choose
“Settings” (5) > Choose “Network” (6)’ menu. If you don’t see the network name in the list, please click on the
‘
Refresh
’ button in the Select Network dialog. It may take up to a minute for the TI-Nspire™ CX handhelds to
see and connect to the network.
2.
If the first step fails, remove the wireless client from the handhelds and wait 60 seconds. Re-attach the wireless
client and the handheld will begin searching for a wireless network. Once the handheld shows the blinking
Navigator symbol in the upper right corner, students can log in to the active class session.
3.
If the first two steps fail, please reboot the TI-Nspire™ handheld by pressing the recessed ‘
Reset
’ button at the
back of the TI-Nspire™ handheld. Some teachers find a paper clip the easiest way of pushing the Reset button.
Note: The student will have to re-login after the handheld reboots and connects to the network.
None of my handhelds are connecting. What do I do?
If none of the handhelds are connecting within two minutes of startup, please reboot the AP by performing the
following steps:
1.
Unplug the USB cable from the computer.
2.
If you have the AP with the external power adapter, remove the power adapter from the AP.
3.
Wait about 10 seconds.
4.
Re-attach the power adapter (if necessary) to the AP and the USB cable to the PC.
5.
The handhelds will start connecting in about two minutes.
