Lack of IPv6 on Vodaphone 4g

What model is the 4G router?

You should just be using the TC in bridge mode so effectively an AP and switch.. plus network disk storage of mediocre quality.

In which case setting the TC to Link-Local only should be fine because the 4G router will pass IP to computers.

Perhaps tell us what you are trying to achieve if it does not work as above.

The TC auto set up guide doesn't work, presumably due to the lack of IPv6 from Vodaphone 4g network??

I doubt that is the issue.. in fact on your local network it is really important that the TC does NOT use Internet IPv6.. but it must use link-local only. For a long while now configuration of the Airport routers requires IPv6 but you cannot use real IPv6 unless the Airport is the main router.

There is a good chance something else is going on, due to the way 4g network functions.

I went through a fairly long discussion helping someone with Netgear M2 4G LTE router and had loads of issues with running an Apple router .. in fact we needed to run it in router mode as I remember to get it to work.. which leads to other problems. Double NAT at the least. Most 4G network will use 10.0.x.x IP range which happens to be native range used by the Apple airports.. but we could not get it functional due to Netgear having terrible Bonjour issues I think. To say nothing of triple NAT or whatever.

I think we are going to need to get serious to figure this one out.

First question.. the whole network should work fine without the TC at all. The MR6400 should work as your main router and everything is picking up IP from it.

Typically TP-Link will use 192.168.0.1 as home address. Is that correct?

Perhaps you can give me a screenshot from a computer of the LAN setup. I have only blanked out the IPv6 public IP. The private IP are irrelevant to anyone outside your network.

And under advanced.

So my router is using 192.168.20.1 as home IP as well as using IPv6.. but I can shut off IPv6 and it makes no difference as far as the local network is concerned.

Here is the TC setup.

I found using Static IP helps loads.. and you can use any DNS you like.. I just use public ones.. since the TC is set to bridge mode. But I can also use 192.168.20.1.. i.e. same as router. This is irrelevant because it is not passing DNS to the network.

IPv6 is link local only.

Even if the automatic setup fails.. you can manually configure the TC to match the network and access it by using IP.

What are you trying to achieve with the TC??

We might be able to suggest other ways of doing things if it won't work.

Are you using a Gen5 TC.. i.e. tower model?

Are you configuring it from your Mac?

The Time Capsule can only connect to your network with a wired Ethernet connection, so the first obvious question here would be.......

Does the Vodaphone 4G router have one or more Ethernet ports?

So clearly we have a router to ethernet network setting problem??

That is what it appears to me.

You did not state clearly internet is working when you are plugged directly to the router but I am guessing that is the case.

Currently BT Broadband into the Ethernet network (from one side of the house). The TC acts as a recipient of the broadband and creates a central house wifi network, that supports 2 additional Airport Express devices to cover the house. Internet connection and Music management across a number of rooms.

You are not getting an IP at all plugged into the ethernet.

Let me get straight the test configuration.

Is the BT broadband still turned on and working?

Did you plug the TP-Link into the switch as well also working?

Your computer did not pickup an address from the switch, which means something is wrong in that configuration.

Can you unplug the existing BT router if you have not done that already.. And then plug a LAN port of the TP-Link (NOT WAN) to the switch which you can then test by connecting to a wall socket that is connected back to that switch.. it is a good idea to power cycle the switch doing that.. not required but speeds things up.

Tell me how that goes.

Sorry we are on opposite sides of the world. ( You are in UK .. I am in your Antipodean Colony).

So answers can have long delays.

Evening.. !!

LOL!! Sometimes it is so easy.. you have a dead ethernet port.. !!

You will need to check the port on the switch but more likely cable or outlet.. get it reterminated if it still does not work.

You should be able to configure the TC now without too much trouble.

Your setup is old.. the last of the pizza box models came out in 2011-2013 and of course the Express even second gen could be even older. At some point you are going to need to update the airplay side of things.