GL-AR300M16 Mini

I see that you bought a Flint 2, but you have not fixed your real problem. What you need for travel is redundancy and to get rid of any single point of failure, like having only 1 remote router. Remember that any single device or location can fail or go offline. Having multiple routers at multiple s

Remote hardware debugging is a pain. If it does need replaced and if you are only using it as a Wireguard server, you could use a GL iNet Brume, or about any small PC running Linux. Wireguard does not need a fast Linux server, as it is very low overhead. I am using a couple cheap, very low power, GL

What about GL.iNet GL-AR300M16? Cheap. Micro USB powered. Can run current OpenWRT. You need to install Luci with the factory GUI, then you can just flash the current OpenWRT sysupgrade .bin. Ignore the warning, it works fine. Did 7 of those like that two weeks ago.

GL.iNet: Travel Routers, can be configured as repeater and are powered via USB. So they can be easily used with a Powerbank. 2.4 GHz is enough, as it has best range. But with 2.4 GHz only you will end up with 20 - 40 MBit. old and cheap:MANGO GL-MT300N-V2 (<2W, so ideally for battery power)GL-AR300M