Changing DHCP starting local address

[Gollom]

I could do with changing my DHCP starting address from 192.168.0.10 to 192.168.1.10 (to accommodate a wayward TV box which insists on 192.168.1.xx) I have a Virgin 3 hub and can see how to do it easily enough but concerned that I'll then have to reconfigure every single device on my network or even worse, kill something!
Or will everything simply adopt a new 192.168.1.xx? have nothing IP dependant such as security cams etc.
Cheers

 

[TTManUK]

Pretty sure that all the rest of your devices will just be reassigned within the new range.

may be worth running ipconfig/release then ipconfig/renew from cmd once you have changed the router, so that devices renew with new IPs with updated DHCP config

 

[Gollom]

Many thanks. Seems that my Virgin 3 hub doesn't like the starting address being changed, even though it gives the facility to do so!

 

[190]

It should be fine. Your devices will request an ip address from the router and the router will issue a new one from the new range. If you look at the router log it will usually detail this happening.

If the router will let you do it !

 

[alecmascot]

You are changing to a new network. 192.168.0.0 and 192.168.1.0 255.255.255.0 are different networks.
You will have to change the router address itself to 192.168.1.1 to start with.

 

[Gollom]

You are changing to a new network. 192.168.0.0 and 192.168.1.0 255.255.255.0 are different networks.
You will have to change the router address itself to 192.168.1.1 to start with.

Ta. That occurred to me too! Would appear that Virgin hubs don't like it - only way I have found without dropping into modem mode and buying another wifi router involves using Console via Chrome which is outside my skillset
Anybody out there know differently?

 

[markjay]

You are changing to a new network. 192.168.0.0 and 192.168.1.0 255.255.255.0 are different networks.
You will have to change the router address itself to 192.168.1.1 to start with.

As above. The DHCP range can only be set on the current LAN subnet.

You'll need to change the Router's LAN Subnet IP first to 'create' the new network. Only then will you be able to set the DHCP range for the new network.

I.e., if the current Router IP is 192.198.0.1, then change it to 192.168.1.1.

Only then you can set the DHCP range to 192.168.1.10-xx.

HOWEVER:

The above, while correct, isn't necessarily your issue or the resolution for it.

From your original post, I would say that you need to change the IP address of Wayward TV box, rather than change the entire LAN subnet to accommodate the TV box's current IP.

I would change the TV box IP to either DHCP, or to a static IP that is outside of the current DHCP range (e.g. set the DHCP start IP to 192.168.0.10, and the TV box IP to 192.168.0.9).

 

[Gollom]

As above. The DHCP range can only be set on the current LAN subnet.

You'll need to change the Router's LAN Subnet IP first to 'create' the new network. Only then will you be able to set the DHCP range for the new network.

I.e., if the current Router IP is 192.198.0.1, then change it to 192.168.1.1.

Only then you can set the DHCP range to 192.168.1.10-xx.

HOWEVER:

The above, while correct, isn't necessarily your issue or the resolution for it.

From your original post, I would say that you need to change the IP address of Wayward TV box, rather than change the entire LAN subnet to accommodate the TV box's current IP.

I would change the TV box IP to either DHCP, or to a static IP that is outside of the current DHCP range (e.g. set the DHCP start IP to 192.168.0.10, and the TV box IP to 192.168.0.9).

Ta. Tried that but the TV box (Humax FVP-5000T) will not tolerate any other IP. Wired connection is OK, but fails on Internet

TBH, It is "nuisance" level as it simply means I can't watch NetFlix, iPlayer etc. via the TV box but all is good on the actual TV. Just hate puzzles I can't sort!

 

[S500Matt]

Is the 'wayward TV' on a static IP. It would be easier to re-ip the single TV rather and reploy a whole DHCP scope to a new subnet.

What is the subnet mask on the TV 255.255.255.0? - If so it will not see outside the range of 192..168.1.x

Re-IP the TV to 192.168.0.x 255.255.255.0 and the default gateway is the IP of your router.

 

[S500Matt]

If you change your DHCP scope to 192.168.1.x you will need to ensure that any static devices are also on the 192.168.1.x which includes your router.

 

[markjay]

Changing the subnet mask on all devices with static IP, and on the DHCP server, to 255.255.0.0 will allow both subnets (192.168.0.0 and 192.168.1.0) to coexist, BUT this includes the subnet mask on the Wayward TV device, so you'll still nee access to its LAN confg.

 

[S500Matt]

Yes but a /16 is overkill.
Surely the simpliest way is to update the Wayward.