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StuartTheFish
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Message 21 of 61

Re: Link BT Home Hub 3a and 3b together

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In theory this should also be able to work with one of those hub2's that were modified for infinity. I'll give it a go when I get chance.
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brummygit
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Message 22 of 61

Re: Link BT Home Hub 3a and 3b together

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Hi John46

 

Unfortunately Keith's link does not answer all of the questions - hence they were asked in the thread.

 

 

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Distinguished Sage
Distinguished Sage
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Message 23 of 61

Re: Link BT Home Hub 3a and 3b together

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It was DS who wrote the instructions. I reproduced them on my website with his permission, to stop them getting lost on the forum.

He is the one who has done all the experimentation with the HH3s.

 

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brummygit
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Message 24 of 61

Re: Link BT Home Hub 3a and 3b together

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Hi Keith

 

That's great - I very much appreciate the hard work you've done and was kind of hoping that DS would be along to answer any queries.

 

I have quite a lot of IT background and understand what is going on. My main question is around roaming between the WiFi on the 2 hubs.

 

In a switched network environment the MAC address of the connecting device is cached and traffic for it is only distributed to its switch port. When you move a device (eg from primary WiFi to slave WiFi) the traffic arrives back at the primary router on an ethernet port instead of the WiFi. When I roam back to the primary WiFi the hub has my mac address cached as being located on an ethernet port and therefore my traffic is not switched correctly until the cache decays (a few minutes or a hub reboot).

 

What puzzles me is how other people have managed to overcome this issue as your information reports that roaming works on both older home hubs and also the version 3s. I wonder if this is that people only tested roaming out to the slave and not switching back, or there is something I missed to overcome the mac layer switching in the HH switch.

 

Thanks again for your hard work.

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Distinguished Sage
Distinguished Sage
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Message 25 of 61

Re: Link BT Home Hub 3a and 3b together

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Your explanation is a very clear one, and is exactly the issue that affects the HH3. I mention this in my other document about using additional access points with the HH3, which is why I suggest using a Universal Repeater, which does have a slight disadvantage regarding throughput, but does not suffer from the "roaming" issue.

 

 

 

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John55810uk
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Message 26 of 61

Re: Link BT Home Hub 3a and 3b together

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I just found this thread and it would seem to be the solution to my situation, but I am unclear as to which ports should be used to connect the two hub together.

 

To me the logical thing would be to use port 4 (the GigE one) on the main hub and the Red BT Infinity port on the secondary hub.

 

Can anyone confirm this or post the correct connections to use.

 

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Distinguished Sage
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Message 27 of 61

Re: Link BT Home Hub 3a and 3b together

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The infinity port is a WAN port not an Ethernet one
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brummygit
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Message 28 of 61

Re: Link BT Home Hub 3a and 3b together

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Just use any ethernet port on each switch.

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John55810uk
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Message 29 of 61

Re: Link BT Home Hub 3a and 3b together

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But isn't a WAN port just another name for an Uplink port and if so surely it should be useable on the secondary hub as such leaving the 4 lan ports available for use by other devices (pc's, smart tv etc).

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Distinguished Sage
Distinguished Sage
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Message 30 of 61

Re: Link BT Home Hub 3a and 3b together

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No, the WAN port is on the wrong side of the fiirewall and. NAT.
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