I want to throttle my uncle's bandwidth and restrict and block some unallowed sites

First thing I can think of, is use your router's parental control. If there is no such thing, or it is too limited, you will have to buy a new router and disable the routing of Motorola.

I don't know if your Mac mini can be configured to be used as a bridge between your uncle's window pc and the router. In that case your mac mini has to be always on.

 

Get a router that supports filtering. Run wired GigE to your Mac Mini.

 

I have bolded what I believe to be the key information here. Before, you were plugged in directly to the modem/router (or sat right next to it, the optimal place for wireless signal), you got the fastest it could be. Now, you're on wireless some distance away (and who knows how many walls and what those are made of) which will cause unknown amounts of interference. Of course, this concern applies only if your speeds are slower ALL the time but you won't know if he's always downloading stuff without revealing your suspicions to him.

 

Here's a helpful step by step on how to do it.

 

get the manual for your router. You should be able to get to the router settings with an ip adres. (for example 192.168.0.1) There you should be able to see all the mac adresses of devices using your router.

Read your manual for the details where to find this stuff and whether you can assign certain aspect to certain mac adresses. (e.g. a static ip adress for a certain computer).

 

I think he'll need nephewian control, not parental control

But then I think this could be solved with a non-technical solution by having a talk between nephew and uncle, if that doesn't help then a talk between nephew, parents and uncle, and if that doesn't help then pack his suitcase for him.

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Usually you can access the router on http://192.168.1.1 or http://192.168.1.254 (just click on the links, see what happens. On my network, the second link goes straight to the router configuration). Read the model number of the router and Google for it for more information. You'll probably need a username / password, but the initial username is usually the same for all routers of the same model, and password is usually written on the bottom of the box. You'll probably get that info through google on the web.

The only problem with changing router settings through WiFi is when you mess up the settings and your WiFi stops working. In that case you'll have to access it from a computer connected through USB or Ethernet.

 

Just change the password and tell him you wont give him it as he's downloading from torrents....

Personally I'd suggest using the QoS, set the QoS for high for anything you use it for, and when you're both on at the same time it will give you preference.

Your other option is to block well known torrent ports, disable uPNP and manually route everything.

However none of this would change slow speeds over wifi, if its the wifi causing the problem....... I'd kick him out, take your room back, and make him use the rubbish wifi if i were you.