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Digi Connect WiSP, WiEM and WiME WiFi Tips and Troubleshooting

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Article Number000005387
Problem Resolution

INTRODUCTION

This purpose of this document is to assist users in getting their Digi Connect WiME, WiEM, or WiSP setup on a wireless network Primary, the main challenge is getting the Digi Module to associate with a Wireless Access Point (WAP). Once this is accomplished the digi can be further configured by using the Digi Device Discovery Tool:  http://ftp1.digi.com/support/utilities/40002256_H.exe.

The settings below are the default settings that the Digi will attempt to look for in an access point. Once the Digi is associated these settings can be changed, provided they are changed on the Digi Connect unit and the access point. At this point encryption and authentication can be setup.

ACCESS POINT SETTINGS (case sensitive):

SSID: Connect
Authentication: none (i.e. open)
Encryption: none
Channel: Auto (1, 6, 11 preferred)
Mode: Infrastructure (as opposed to Ad Hoc)
DHCP server: enabled

The Digi by default will look for an access point with an SSID of "Connect".  If that fails it will then associate with the strongest unencrypted access point signal regardless of SSID. If there are more than one access point the digi will attempt to associate with the SSID of  "Connect", regardless of signal strength. The Digi Connect unit needs an access point without authentication or encryption. It will not be able to associate if either of them is enabled. It can associate with any channel but 1, 6, or 11 are preferred (North America). The Digi Connect unit by default will look for an access point in Infrastructure mode. It will come up in "BSS_Join" mode.

Once the Digi Connect unit has successfully associated with the access point its LED will stop blinking and go solid. Then, after it associates, assuming that the module has not been assigned a static IP address, it will attempt to acquire a dynamic IP address from any available DHCP server on the network.

OTHER TROUBLESHOOTING TIPS:

Make sure the AP is running in mixed or "B mode" (802.11b). If the AP is running in "G Mode" (802.11G) only, the Digi module will not be able to associate with it as it can only do B mode (11 Mbps).

If you continue to have problems, then try to force the Digi Connect unit to associate with the desired access point. Remove the antenna from the Digi and move it within a few inches of the desired access point. Check the above settings on the access point. If you have any other access points in the area you might want to power them off.

If the Digi Connect unit is still not associating then try resetting the unit back to factory defaults (see User Manual for procedure - typically pressing and holding the reset button for 20 seconds while powering the unit on). 

Check the modules Link LED.  If it's solid, it means it is associated with an access point. If it's blinking quickly (once every second or so), then it's not associated but searching. 

If the module's Link LED indicates that the module is associated but you still can't discover it; turn off the access point. Does the green LED start blinking rapidly? If it does then that means that the module was associated with it. If not, then you know that the module has associated with some other wireless network.

Make sure the module has the newest firmware loaded onto it. You can obtain that from the Digi Tech. Support web site:  http://www.digi.com/support.

Make sure the access point being used has the newest firmware loaded onto it. In rare circumstances, errors in the access points firmware can impede communications.

-Run the module in "debug" mode (Digi Connect WiSP only). Flip unit over and set all red and white jumper pins in position so that they are closest to the serial port (on). Then attach a serial cable and open a terminal program from the PC or laptop with the following settings: 9600 baud, 8 data bits, 1 stop bit, no parity, no flow control. Login as root (default password: dbps) and type the following commands:

set trace state=on
set trace mask=wlan:+cdiw

The module should start displaying what access points it sees and which ones it's trying to associate with.

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