Asus RT-AC1750B1 Manual page 16

2. The wireless router automatically detects if your ISP connection
type is Dynamic IP, PPPoE, PPTP, L2TP, and Static IP. Key in
the necessary information for your ISP connection type.
IMPORTANT!
the Internet connection type.
for Automatic IP (DHCP)
for PPPoE, PPTP, and L2TP
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Obtain the necessary information from your ISP about