How to combine the Internet from two modems into one router?

Question

Computer networks

There are two neighbors with ADSL Internet from one provider. Each house has a D-Link 2500 provider modem, followed by a TP-Link WR841N router. Everyone has their own Wi-Fi network for their devices.
It is necessary to start the Internet from two modems to one router at once. An important condition is the distance of the second modem from the router, so connecting with wires is not an option. The apartments are nearby, everyone has a good Wi-Fi connection.
I assume that it will work approximately according to the following scheme. Each router is connected to its own modem and distributes the Internet to its owner. One of the routers, in addition to its modem, must also connect to the second router via Wi-Fi to receive Internet from it, then some magic, and distributes the Internet from two sources. I did not see anything suitable in the admin panel of the router.
Is it possible to do this at all? If yes, I would like to know how to implement it.
+ there are also two TP-Link MR3020 with OpenWRT firmware in case some intermediate node is needed.

Answer 1

as mentioned above, you will not be able to increase the speed when downloading via http or ftp. you can speed up your torrenting, you don't have to reconfigure routers:
you need connectify dispatch.
connect to one router with a wire (via ethernet), and to the other via wifi. run connectify dispatch.
connectify dispatch can do load balancing for http, but this is just balancing, not bonding - the connection started by http / ftp remains on the provider on which it was launched. this is done so that there are no problems with sessions on the sites, as you were told above.
the same thing that dispatch does, you can do with one of the routers, but not on native firmware, and this router will do all the routing work for two.
and yet it would be desirable to connect the routers with a wire, tk. when connecting via wifi (wds), the speed for ordinary wifi users - phones and laptops will suffer greatly.
and advice about the torrent - do not use a local torrent tracker, download from well-known ones - rutor, nnm club, etc., everything is in order with the speed