Virgin Media Community

[DreamOfCheese]

If your devices seem to be getting different address ranges as DHCP leases each time it's possible you have a second device on the network acting as a DHCP server.

Have you perhaps got a second router you're using as an access point and haven't disabled DHCP on?

[chenks]

so what is giving your macbook an IP address of 10.0.1.x ?
clearly the macbook is communicating with something that is assigning it an IP address in that range?
is this via WIFI? if yes, have you tried it via ethernet?
obvious question, but is the macbook definitely trying to connect to the correct WIFI network?

as i said, to rule it out, factory rest the virgin hub.
if the issue remains than it's the macbook causing the problem.

[chenks]

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@DreamOfCheese wrote:
If your devices seem to be getting different address ranges as DHCP leases each time it's possible you have a second device on the network acting as a DHCP server.

Have you perhaps got a second router you're using as an access point and haven't disabled DHCP on?

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yes possible. OP can you provide details of your entire network.

[steve-salmon]

I do have an Apple Airport but the Wifi is disabled. I use this device as a backup disk it is connected to the hub3 via an ethernet cable.

My MacBook connects via Wifi. Unfortunately I do not have a native ethernet port on the MacBook.

Can I be clear that the Hub3 consistently returns 10.0.1.1 but sometimes returns 198.168.0.x

I do not get a range of addresses. It is normally 10.0.1.1 which I know is no good. I keep renewing the DHCP Lease until it is successful.

I will do the system reset and post a reply in the morning.

Thank you.

[用心棒]

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@steve-salmon wrote:

By factory restore undo you mean hold in the "reset" button for 30 seconds?

I have not changed anything on the hub. Although VM support may have done so.

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FYI: Resetting your Virgin Media Hub

[chenks · Accepted solution]

i don't belive the hub is giving out 10.0.1.1
i suspect the airport is, as 10.0.1.x is a range that apple networks devices use by default.

remove the aiport from the network and i suspect your problem will disappear.

[DreamOfCheese · Accepted solution]

If it usually returns 10.0.1.1/24 but other times returns 192.168.0.1/24 then you're getting a range of addresses.

Since the airport is a router you'll need to make sure it also has the DHCP server disabled as well as just wifi, if it isn't disabled the airport and your Hub will both be receiving the DHCP request packet from your devices and then be fighting to respond. With DHCP it's the first server to respond that wins.

[用心棒]

In MacOS open a terminal and type arp -a and use the returned MAC address to identify the device at 10.0.1.1

[steve-salmon]

I reset the hub this morning but same result.

I will now check that the Airport DHCP is disabled.

Appreciate your help and will let you know how it goes.

[chenks · Accepted solution]

as i said, the easy test is to simply power off the airport, if it is that causing the issue the problem will disappear instantly once it's powered off.