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Problems For 3G Network Connection; Backing To Factory Default Setting If Necessary - Draytek Vigor2820 Series User Manual

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2.
Check if PPTP Server, Username, Password and WAN IP address are set correctly
(must identify with the values from your ISP).
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When you have trouble in using 3G network transmission, please check the following:
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You have to wait about 15 seconds after inserting 3G USB Modem into your Vigor2820. Later,
the USB LED will light on which means the installation of USB Modem is successful. If the
USB LED does not light on, please remove and reinsert the modem again. If it still fails,
restart Vigor2820.
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Check the PIN Code of SIM card is disabled or not. Please use the utility of 3G USB Modem
to disable PIN code and try again. If it still fails, it might be the compliance problem of system.
Please open DrayTek Syslog Tool to capture the connection information (WAN Log) and send
the page (similar to the following graphic) to the service center of DrayTek.
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Please connect your Notebook with 3G USB Modem to test the connection speed to verify if
the problem is caused by Vigor2820. In addition, please refer to the manual of 3G USB
Modem for LED Status to make sure if the modem connects to Internet via HSDPA mode. If
you want to use the modem indoors, please put it on the place near the window to obtain better
signal receiving.
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Sometimes, a wrong connection can be improved by returning to the default settings. Try to
reset the router by software or hardware.
Vigor2820 Series User's Guide
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