Connecting Multiple Modems to One Internet Contract in a Multi-Room Flat

Hi.
I have a few rooms in my flat, but I can only put a Wi-Fi router in rooms A and B. However, rooms A and B are in different parts of the flat and separated by several walls, so if I put a router in one of them, the other one will get a slow/unstable connection.
One of the options is to sign 2 contracts with different internet providers.
However, I don't want to pay twice and was thinking about whether it's possible to sign a contract with 1 provider but buy an additional modem or something similar.
I'm in Warsaw and don't have any contract with an internet provider right now, open to possible options.

Thanks

Lay the wires to the other devices.

sosarek wrote:

Lay wires to the other devices.

And at the end of these wires, in a room with poor coverage simply install an additional access point.

It is impossible to connect two modems on one link. Technically impossible. Not to say that a little cable and an access point (as above) will probably come out cheaper.

>>20908788
W tym przypadku musiałbym przeciągnąć go po całym mieszkaniu, czego chciałbym uniknąć.

You'll probably spend a bunch of money on some meshes or, God forbid, repeaters and you'll still end up convinced to go with cable