BQM help please TPLINK ex230V router

Had a BQM running fine on my last ISP but I have just switched to fibre with the above router and the BQM is just not working - solid red. I assume there is some setting I need to change.

Yes, you need to set the new IP address, assuming it is still a public address and you need to be sure that the router can respond to pings.

I think the IP address is right, although I wonder with this problem. I can ping the IP address - does that mean the router is 'ping-worthy'?

If you can ping from inside your network, that means nothing. You could be on CGNAT and still unable to ping from outside. Or your new router could just have response to external ping turned off

OK - any clues how to check the ping on that router? A bit lost on CGNAT! - my router shows a different IP (100.zz) to my 'public' IP.

If your external IP is on 100.x.y.z, then it is CGNAT and you don't have a public IP address. Do you mean it is different to your routers LAN ip address, which is private on IPv4?

I think you will need to go to the BQM guides to see what you can do with CGNAT, unless your ISP supports IPv6

Now I'm more confused - I said "my router shows a different IP (100.zz) to my 'public' IP." not the other way round.

I also see that my router IP6 address is different to my public IP6 address too. I guess that means I cannot use the TBB monitor?

OK, time to be pedantic. Routers or computers or phones or anything do not have IP addresses. It is interfaces that have IP addresses. And being pedantic again, let's talk about your router's WAN and LAN interfaces.

The public address lives on the WAN interface. But it might not be public if you have CGNAT.

If ip address 100.x.x.x is on your wan interface, then you have CGNAT. If ip address 100.x.x.x is on your LAN interface, then your router is misconfigured.

The primary RFC for private IP addresses is RFC 1918: Address Allocation for Private Internets https://www.rfc-editor.org/rfc/rfc1918.html, which reserves specific IPv4 address ranges (10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16) for internal use, not routable on the public internet

So, now, let's look at your ipv6. Can you give us the first quad of your WAN interface IPv6 address and the first quad of your LAN IPv6 address? Something in the form 2a07:: or fe80::. Then we can see if you can do BQM over IPv6.

Edited by DFScale (Sat 17-Jan-26 22:26:43)

Having already edited the monitor to the IP6 address and it still does not work, I don't think there is much point in proceeding?

Giving up too easily. As you have not clarified on which of your ipv4 addresses are WAN and LAN and you have not
given the first quads of the ipv6 addresses, we cannot sort out which addresses you could work with.