While this question might technically not be related exclusively to Linux, I am running only Linux so I don't have any idea where else I could post it. But anyway I think the solution to my issue might be possible within network configuration from my linux box, if not from router itself.

I've got a Huawei F2000 shipped with my fresh new broadband package and from within I want to set up guest access to my WAP, although it only gives me 5G guest access as an option, thus leading to it not being reachable within the neighbour's house (for which I need to set up quarantined/dedicated 2.4G WiFi guess access), for the 5G frequency range beams the signal to somewhat shorter radius.

What are my options, except buying an additional router to act as a repeater...? Thanks a million.

5Ghz only seems to be at odds with the manual I peeked at. I guess it's possible the supplier or country you are in may have some limits.

First I'd look at how to configure it once more to see if it does have a 2.4Ghz option or it may be labeled as some wireless version instead. Maybe you have set it 802.11ac or in the ac config page?

If you end up not having 2.4Ghz then there are plenty of options. Most easy may be to take an ethernet gizmo to 802.11b or g or whatever you want or need.

Thank you for your response. I apologise for not having answered earlier. I had a lot of stuff to do (my studies).
I live in Ireland. I don't think there are any major restrictions in regards to the frequencies allowed in my country.
I attached two screenshots of my router configuration. Would you be able to take a short look and point me to right direction in term of what I might change to affect the 5G channel the right way (in order to expand its range, if possible)?

https://imgur.com/a/GqPYTZl

I can't access those links so I can't guess much.

5G tends to be less coverage. Plenty of wifi extenders and some that translate to 2.4G. Can easily plug in an old router usually to spread ethernet to wifi.

Don't know why you can't let a guest on 2.4G. I've never seen a router that didn't have both guests.

Strange, the link is working well. I'll do some research on the extenders. Thank you very much. Anywas, I was wondering if it were possible to create some sort of "virtual AP" from within UNIX interface, which would act as a protected guest access on 2.4G wavelenght.

Do you mean that you have a system that has a wireless nic card/adapter that has both frequencies and you wish to use that access as a guest access? If so I think you may mean you wish to nat/pat via iptables this connection somewhat like network sharing.

I think it might be something like that. The thing is - I am able to connect to either frequency to the WiFi connection I previously have created within my router. But since the guest access setting in router is limited to 5G option, which means very limited connectivy range - my guests can not connect to it, and I want to provide my potential guest with WiFi connectivy, say, when they call over for a bbq in my back yard, but at the same time I want to avoid giving access to my internal networks to anyone - hence the intend of creating separate, longer range, WiFi guest access. Maybe I could use one of my laptops as a "signal repeater" - even on 5G to extend the range of the AP - just an idea, though...

The wireless adapter must be a nl80211 compatible device which supports the AP mode.

https://wiki.archlinux.org/index.php...e_access_point

I've used Linksys dual band extenders and they work well for their intended purpose and they because they are repeaters only provide half the bandwidth to the end user.