How to set up IPTV via Repeater-Bridge on DD-WRT?

Question

WiFi

Given:
- Two routers: Asus RT-AC66u, ASUS RT-AC68u.
- IPTV set-top box: Dune HD TV-102W.
The Internet is connected to the first RT-AC68u router, which also relays IPTV via Wi-Fi, but the TV with the set-top box is far enough away and the signal often disappears. In a room that is much closer to the TV, there is an AC66u, which is set to 68u in Repeater-Bridge mode, i.e. just a network extender.
I flashed the Asus RT-AC66u with DD-WRT firmware (since there are no settings for multicast relaying on the standard Asus firmware), configured it in Repeater-Bridge mode and turned off the SPI Firewall and also unchecked Filter Multicast.
When you connect a TV with an IPTV set-top box to a wifi network on the second router (which is in repeater mode), naturally there is no picture on the TV = ( How to solve this problem? The
full settings of the first router
are
:
Second:
I configured according to this manual: habrahabr.ru/post/136418 in the "Repeater Bridge or connect to a friend's network" mode, with the
exception of the parameters that I wrote above, "turned off SPI Firewall and also unchecked Filter Multicast."
Tell me how to make it so that earned IPTV from the second router - i.e. forward iptv multicast through wifi repeater-bridge further through the air.

Answer 1

Try connecting with the second router to the first not as a repeater, but as a regular client.
It worked on tplink1043, but the iptv set-top box was already connected via cable to the second router.