Can I see get a PC to access two different subnets ? ( 192.168.0.X AND 192.168.1.X )

I recently replaced an old router on a small business network and changed everything ( I thought) to
This means printers, PC's etc .  All is working Well.

I just found out that a Rooftop WAP   still has a working static address ( it was documented but I overlooked it) and is still being used (correctly) to surf the internet.
I can drive to the site  ( with a 192.168.0.X static) and reconfigure but I have a logmein account on a few PCs and was wondering if I can modify a PCs subnet ( to allow it to see BOTH address ranges..???
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Yes, in theory if you change your subnet to you should be able to take to that IP address. However keep in mind that the subnet of the router you are connecting to and more importantly the remote router might prevent you.

Alternatively you can keep the subnet mask but change the ip address of the machine you are connecting from to temporarily. This way you can connect to the WAP and change it's IP address and the change your machine IP address back to what it was.
Jody LemoineNetwork ArchitectCommented:
Assuming you're running Windows, you set your computer to use a statically-assigned IPv4 address on the network with a default gateway of Once this is done, you can go into advanced settings under the IPv4 protocol and add another static address (with no default gateway) on the network. Once this is done, you will be using the network as your primary network, but will still be able to access devices on the network directly.
Pick a computer on the network, and temporarily change its IP settings to use static IIP on the 192.168.0.x with makes. Make the adjustment you need to the way, and revert the settings on the system to DHCP.  If you need to have both accessible, configure two IPs one for each segment.

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