Minifree offers the Libre WNDR3800 Router.
These are refurbished Netgear WNDR3800 or WNDR3800-1CHNAS routers that come pre-installed with free software only (uboot, libreCMC).
While it has no RYF certification as of 2019-01-08, Minifree submitted the router for approval:
It’s a completely FSF-endorseable router: in fact, Minifree has sent the FSF a ...
If I understand the 802.11 specs correctly, then the 802.11ac variant uses the 5GHz band exclusively, thus the ASUS device should be what you are looking for.
Take a look at the table on Wikipedia. IEEE 802.11 protocols
Up to now there is no DSL/VDSl modem/router supported, because fo problems with the driver and the management of the modem itself that connects to the Internet Provider.
So, if you just want a name, I suggest you to look at ASUS DSL-AC68U because it supports a lot of OpenWRT features and it's directly maintained by ASUS. In sense that Asus bases its ...
Cisco offers products with this capability: 4G Routers. I have used their products to build similar configurations. There are many industrial products like this from Cisco and others. They can meet all of your requirements but they are quite pricey.
Here is a product that is built to act as a backup to a DSL modem and stand between ...
Your laptop's hardware manual and user guide show no expansion slot for a PC Card WiFi Adapter.
Therefore, replacing the factory-installed internal Mini-PCIe card with a Mini-PCIe card with is 2.4 / 5 GHz capable is a reasonable choice. You may also consider adding an external WiFi device, such as a USB-attached WiFi 5GHz adapter if you are reticent to open ...
One cheap option would be the D-Link DIR-632. It supports all of the above requirements, save perhaps "management of at least 12 devices possible," using dd-wrt firmware, possibly also stock firmware. I can't think of a reason why it wouldn't support 12 managed devices simultaneously, so I think it is a good suggestion.
It is worth noting that this is in a ...
You might want to look at the FritzBox 7312.
Supported by OpenWrt (see).
Internal ADSL 2 / ADSL 2+ modem that is also seemingly working when installing OpenWrt (which is rare and I have not seen this explicitly stated with any other FritzBox supported by OpenWrt, but it might still work with others as well).
"ADSL: should be working, tested @...