Problem with wireless cards is as always: firmware.
Can you pleas einstall this file into /lib/firmware of your VyOS router and reboot:
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/iwlwifi-7260-17.ucode
Problem with wireless cards is as always: firmware.
Can you pleas einstall this file into /lib/firmware of your VyOS router and reboot:
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/iwlwifi-7260-17.ucode