When DHCP is selected as connection type, you need to configure the following settings:

Router Name

Type the name of the router.

Domain Name

Type the domain name obtained from the ISP.

When PPPoE is selected as connection type, you need to configure the following settings:

Username

Type the name obtained from the ISP.

Password

Type the password obtained from the ISP.

Confirm Password

Type the password again for confirmation.

MTU Size

Type the largest size (in bytes) of a packet.

After finishing all the settings here, please click OK to activate them.

3.2.3 3G Backup

This page is used to setup 3G backup function. If you enable 3G backup, make sure your WAN connection type is not in 3G mode. When the WAN connection is broken, router will try to keep the connection with 3G mode. After WAN connection is recovered, router will disconnect the 3G connection automatically.

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Draytek 2750 manual 3 3G Backup