Tenda AC1750 User Manual page 49

Default drop-down list (i.e. default mode is "Deny Access to
Internet"), then all clients will be denied from accessing
Internet at any time. And if Deny is selected from the Filter
Mode drop-down list, then all clients will be denied from
accessing Internet at any time. However, if Allow is selected
from the Filter Mode drop-down list, then only clients whose
IP addresses are included in the specified IP group will be
allowed to access Internet during the time period specified
by the time group in the rule.
Example 1: To forbid PCs at the IP addresses between
192.168.0.100 and 192.168.0.150 inclusive from accessing
Internet at any time, do as follows:
Step 1. Set an IP group: 192.168.0.100-192.168.0.150.
Step 2. Set a time group: select "All".
Wireless AC1750 Dual-band Gigabit Router
48