Method 1:- Unplug your router, wait for some time, plug it in again.

Method 2:- Use a VPN or a proxy.

EDIT: Additionally, if you are going for method 2, I'd suggest PIA. Costs around 0.006 BTC (3$) a month if you buy it as a yearly package, being half the cost of the closest competitiors. Best quality too, and it allows using 5 devices at once, each can access 18 Servers across the world.