There actually is a way to do this, though I personally have never tested it. You will need to have the device connected to your HT2000w at the time that you do this.
1: Go to http://systemcontrolcenter.com in your browser (please make sure your computer is directly attached by network cable)
2: Click on Wifi Settings
3: Log in using the Admin password
4: Select Advanced Setup
5: Select "Firewall"
6: Select "Parental Controls"
7: You will now see you have a large selection of things. Select the device under Client Device, and Enable the rule. I suggest selecting TCP, UDP, WWW, and Secure HTTP, just to make sure everything is caught. Then at the bottom in Scheduling Rule, select Specific Times, and enter the time you wish for it to start, and for it to end. So if you want 7PM to 8AM you would have your start time at 19:00 and end at 08:00 if I am not mistaken... From the looks of things it might be using 24 hour time as there is no way to select AM or PM on either end or start.
If this works for you, please let me know, and let me know if it in fact is using 24 hour for the time functions. You must do this for each, and every device that you wish to block for certain time frames.
EDIT: Doing this flat out blocks them, or can allow them, there is no way to specify them to a different channel, just lets them use the network only at certain times. If you are trying to control bandwidth usage, you might need something a bit more beefy than the HT2000w. Such as PFSense, VLANS, and a UniFi AP with a UniFi Key, that becomes a headache on a smaller home network, and gets costly.
The closest you *might* get with that is using QoS > Traffic Mapping and setup things, your devices with high priority, theirs with low. But I have no idea how well the HT2000w QoS works.
