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Issue setting up Diafaan with Multitech Cell 100
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August 16, 2019
3:25 pm
Henk Helmantel
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Forum Posts: 1073
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May 28, 2013
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Normally, the GSM modem logs on to the mobile network automatically when it is switched on. It is not necessary for the software to give a command to the modem to connect to the network. But if the SIM card is protected with a PIN code, the software has to send a command with the PIN code to the modem to unlock the SIM card before the modem can log on to the network.

It looks like your modem does not connect to the mobile network automatically. If you know the AT command that instructs the modem to connect to the right mobile network you can enter it in the 'ModemInitializationBeginning' or 'ModemInitializationEnd' properties in the advanced settings of the GSM Modem Gateways.

If that does not work then I would like to see the communication log for the modem to see how the modem reacts. You can send this file to email address 'dms@diafaan.com'.

Regards, Henk

August 15, 2019
7:58 pm
Steven
Guest
Guests

Henk,
Thanks for your reply. As you suggested, set 'RebootBeforeInitialization' to 'False' and this did stop the reboot loops. However, it appears that Diafaan isn't fully connecting. When I use the MultiTech Connection manager software to connect the modem, it appears to fully register the device on the network (T-Mobile is shown as the network, etc). When connecting with Diafaan I get the message "Network error, the modem is currently searching a new operator to register to" and my RSSI shows as '99' which implies there is no signal (when connecting with the Multitech Connection manager our signal shows at 60%). When I queue up a message in the web connector, I get an Error 304 Invalid PDU mode parameter. I would appreciate any ideas you have on how to remedy this. Thanks.

August 15, 2019
12:48 pm
Henk Helmantel
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Forum Posts: 1073
Member Since:
May 28, 2013
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Hello Steven,

The issue might be caused by the reboot itself. Some modems take a long time to re-connect to the mobile network after a reboot, and if that happens it triggers a new error when Diafaan SMS Server opens the modem again.

You can increase the time that Diafaan SMS Server waits after a reboot from 30 seconds to, for example, 60 seconds with the 'ModemRebootTime' parameter in the advanced settings of the GSM Modem Gateway. But it is probably better to disable the reboots completely by setting the 'RebootBeforeInitialization' parameter to 'False' for this modem.

Regards, Henk

August 13, 2019
9:38 pm
Steven
Guest
Guests

I'm trying to get a Multitech Cell 100 working with Diafaan using a T-Mobile SIM card. When I set up the Gateway and run the Test, it shows T-Mobile as the provider along with the correct SMSC and phone numbers. However, after saving the Gateway, it begins a loop open the port, closing the port, and then rebooting the modem. I've tried using both Normal and Enhanced compatibility modes with no luck.

In the Gateway status on the Web Connector site, while the port is open it will show the correct number and SMSC but the provider information is blank and LastNetworkRegistration states "Network error, the modem is currently searching a new operator to register to"

With Diafaan closed, using the MultiTech connection software I can connect without constant reboots and using the terminal I have been able to send AT commands and manually register the modem to the T-Mobile network.

Does anyone have any suggestions on what to try to keep Diafaan from continuously rebooting the modem?

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