I don't see single extender either, then I decided to purchase another KIT, so now one is connected to my router, the other three are plugged into other rooms, and they all work fine(except of one in...

will the little house light turn off when the problem happens? it might be caused by powerline interference, you could try to plug it in other wall sockets

It seems the modem support lan to lan ipsec vpn, not client to lan

there is no ethernet port on the mibox? on the website, it shows " Plug and Play in Windows (XP/Vista/7/8/8.1), Mac OS X (10.9/10.10), Linux OS. Note: Driver required for Mac OS X (10.5-10.8), I...

The recommended clients is 15, actually the number of clients can be connected in practice is mostly depended on the hardware parameters such as CPU capacity, RAM size, session limit of the...

internet should still work without gateway I think, because the main router will assign ip address for those clients, so the gateway for the clients is still the main router