User's Manual

iCON
®
452 User Guide
Version: v007ext Page: 19 of 28
10 TROUBLESHOOTING
If you are having trouble getting a reliable connection, please check with your network provider for advice on
network coverage in your area.
Other characteristics such as network cell handover, dead coverage spots, geographic or structural
obstructions, etc. may also affect the performance of the data transmission.
Symptom / possible causes Possible solution
No LED burning. Check if the device is firmly plugged into a USB port
or check the connection of the cable if you are using
this. If still not working, try to use another USB port.
No SIM inserted. Disconnect the iCON
®
452. Insert the SIM and
reconnect the iCON
®
452.
Insufficient signal strength. Move the device to a location with better coverage
(e.g. a window). The extension cable can be of help
for this. Use the signal strength tool to see the signal
strength.
SIM card was not present when connecting the
device to a USB port.
Disconnect the device, insert the SIM and
reconnect.
Drivers are not properly loaded. Device shows
yellow exclamation marks in the PC’s Device
Manager window.
Close communication software that might be
accessing the device. Close all ports before
disconnecting the device from your computer.
Reinsert the device.
LED is blinking, but does not change to solid after
an attempt to connect.
The APN is not correct. Check the settings with the
ones that you’ve obtained from your network
operator.
You are roaming and the network you are using
does not allow data links with your home operator.
Manually select another network that supports data
links with your home operator.
Your connection software doesn’t detect the device. Probably due to faulty driver installation. Remove
previously installed connection software. Also
remove any other drivers of similar devices. Re-
install the software.
Conflict with other programs. Disable or remove any other communication
program that might connect with the device.
Slow speed and/or no or weak UMTS/HSUPA
network where you are.
Check in the communication software tool which
settings are used (“UMTS preferred” is
recommended) and also check which network is
used (UMTS / HSUPA or GPRS / EDGE).