• 1) Please check Power Switch whether it switches on.
• 2) Please check the Power plug.
  

• 1) Ensure that the ADSL line is activated.
  
• 2) Check that the Telephone cable (RJ-11) is connected to LINE Jack on your modem.
  
• 3) Try to turn off the modem, wait for at lease ten seconds, then turn on again.
  
• 4) Try to take out all telephones connected to the ADSL line for testing.

If the problem still persists, please check with your ADSL Service Provider to confirm the line condition.

• 1) Check the RJ45 Network Cable connection.
• 2) Check your LAN Card whether it’s functioning.
  

• If you clicked firmware update>>download image file previously, please remember to click Cancel button under Firmware Update.
• Please contact modem vendor for servicing.

Yes. It can support VPN pass-through. But some VPN servers don't allow IP: 10.0.0.X to log on, So please try to change the default IP from 10.0.0.2 to 192.168.1.1

For H9000B (Jetpack), goto http://10.0.0.2/doc/lan_conf.htm to change the IP address
then click submit > save configuration > Save and Reboot