Guest Wifi in Quickset no internet

Hi all,

New to this forum and to Mikrotic. I’ve searched for some time for an answer to this but I’m not sure if this is something I’ve misconfigured with the Mikrotic or elsewhere in my network. I’m not particularly skilled in networking, just keen to learn, which I’ve done so far by creating the following (basically) network:

Internet → Virgin Cable Router in Modem mode → Sophos UTM 9 (DHCP server and default gateway) → dumb GB Switch → CAT6 to upstairs Miktrotik RB951G-2HnD which I use as an access point.

Problem:

I use the Miktrotik for my home wifi, it’s really great, no complaints. DHCP is served from the Sophos box. I want to add a guest wifi network which is segregated from my LAN for 2 reasons, IOT devices and actual Guests.

What I’ve done is use the Quick Set menu to activate the Guest wifi. I can connect just fine but there’s no internet access.


What am I missing? Hope someone can help, and thanks in advance!

Cheers

Without seeing your configs, couple of things immediately come to mind.

Typically when there is another wifi network it is in another vlan. If your GB switch does not support vlan tagging that could be a reason why the guest traffic doesn’t get internet access.

You could also be running a NAT on your Mikrotik that then goes to your modem/router, though if you were I don’t think you would be having much of an issue at this time. The possibility here is if your guest network is not permitted to access the “WAN” link of the Mikrotik. “WAN” is a bit of a misnomer here as it really is a LAN going to your modem, but your Mikrotik would treat it as a WAN.

I think the first scenario is most likely. If you want to post your configs we can dig in a bit deeper and figure things out for you.

Thanks for your response. attached is my config, hope this helps. If you need any more details please let me know, appreciate the help!
config.txt.rsc (3.25 KB)

If your MikroTik device has default config and only Guest network in Quickset is enabled, it should work right away.
So need more info, what is not working in the guest network?

  • Does it connect at all?
  • Did it get an IP
  • Can it ping gateway (MikroTik)?
  • Can it ping 8.8.8.8 ?
  • Can it ping google.com (DNS issue)?

Hi,

To answer your questions:

  • Does it connect at all? - yes,
  • Did it get an IP - 192.168.10.9
  • Can it ping gateway (MikroTik)? The gateway is my sophos box (192.168.1.252) and no, ping fails. I also note that for the wifi interface on my laptop, when connected to Guest there is NO default gateway.
  • Can it ping 8.8.8.8 ? no
  • Can it ping google.com (DNS issue)? no

I’m fairly sure the issues is the fact that I am using the Sophos box at 192.168.1.252 as my default gateway that’s complicating this, just not sure how to fix.

Quick set screenshot attached
mikrotik.PNG

You have incorrectly set IP addresses.
Internet and Local network can not be in the same range.

oops, changed that now. Still not working. I’m going to reset to defaults and retry. Thanks for the help so far.