Improve network performance. How?

Question

Computer networks

Good day!
I have the following situation at home: optics are installed, in theory, GPON should function - a dedicated channel, the EU, but up to 1 Gbit / s. At least that's what the provider promised. What is the result: optics stretches into the apartment, then wholesale. socket, then it goes to the provider's router, which cannot be changed, because such is the contract. Recently, half a year after all this, access to the Internet has become extremely unstable (at home there is only 1 stationary PC, 3 wireless devices) - if someone watches a movie from a tablet, then there is no speed on a PC and other devices . It is treated with a reboot of the router, but not for long. And, yes, the speed is 200 Mb/s, the speedtest confirms this, but in reality it doesn’t smell like such numbers...
How can I fix this? Is there some kind of balance to be made, because the provider's equipment obviously cannot cope with 3 Wi-Fi clients and one computer.
Is it possible to buy a gigabit router and give it a link from the provider's router, thereby unloading it?
I would be grateful for a hint on how to act most rationally in such situations. Thank you.
PS Router manufacturer Zhone - ZNID24xxA-Router.

Answer 1

Have you tried https://code.google.com/p/namebench/ ?

Answer 2

Yes, this is almost a standard misfortune of cheap Chinese routers, which providers love so much because of their wholesale price, in those routers that the operatives that the speed of the processor are practically zero. That ADSL and PON are overloaded from more than two simultaneous users, there are only two options: either watchdog (distort the power of the router at each freeze), or put the router in bridge mode and set the main network to something like Zyxel Kenetik II or from Asus, even if leave authorization on the bridge, all the same, only one client will work much more stable. Also, on a normal router not slaughtered by the provider, you will get all the tools for managing the network and routing like QoS, etc.