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Recover Static IP addresses assigned to devices that are no longer in use or available

Haywyre
Member

on ‎27-10-2014 09:59 AM

We have several static ip addresses in use through our BT Hub (v3). A device that did have a static ip is not available anymore but it's static ip has not been released for reuse.

 

Is there anyway to see the full list of assigned static ip's and release one's that are assigned to a non existant device ?

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4 REPLIES 4

TimDurham75
Power User

on ‎09-11-2014 08:34 PM

Settings > Advanced Settings > Broadband > DNS resolution. Can delete assignments.
Business Network > Devices and/or DHCP Table allows sight of allocations.
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Haywyre
Member
In response to TimDurham75

on ‎13-11-2014 12:02 PM

Thanks for your advice, unfortunately the ip's i 'm missing do not show up in either list. Is there anyway to reset the assigned static IP's ?

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TimDurham75
Power User

on ‎13-11-2014 12:29 PM

I am confused - if the static addresses show up nowhere how is that you know they are "not available"/still allocated: what tells you that? Is this internal network static or mapping to external public static IP? Do you have some other DNS in use and the router is not providing that role so the information is actually from another source? If you perform an nslookup from a client to these problematic cases, what info is being returned and where is that originating?
The "catch all" is to factory reset the hub settings>advanced>system>resets
When you click on individual devices within the business network devices you can assign them addresses and delete the device even if not attached. If there are no entries then I cannot imagine where the hub obtains that info - I would probably still just reset it!
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lukudav
Member
In response to TimDurham75

on ‎17-11-2014 06:01 PM

To intrude and answer Tim's question. I have been trying to set the IP address of a device via Advanced Settings/Business Network. "Always use this IP address" set to Yes. I change the IP address, click Apply, and get

 

Conflict

The IP address entered conflicts with a device using the same IP address on your business network.

Please enter a different IP address.

The IP address I am trying to set USED to belong to a different device some time ago, but does not appear in the DHCP Table.

 

(There is something else, though probably not related: in Devices I see a device that appears twice, once Connected and once Not Connected. Perhaps it's Schroedinger's Cat.)

 

I fear I shall have to factory reset, though it's a right pain setting it all up again.

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