Hi,

I have an Orcon Genius router.  Connected to it via ethernet is a second wireless router on the bottom of my house to extend the wireless signal where the Genius on the top floor cannot reach.

The Genius's default gateway is 192.168.100.1.  I have DHCP turned on in the range of 192.168.100.20 to 192.168.100.250.  The wireless router downstairs has a default gateway of 192.168.100.1.

Everything has been working well (for a couple of months) until recently when I had fibre installed.  All PCs etc were connecting to 192.168.100.1.  Now they all seem to want to use the default gateway of 192.168.100.2 and cannot connect to the internet.

Is there something simple that I am overlooking?  How can I fix this issue?  I've tried to go into the Advanced Properties of IPv4 for the network adaptor to fix the default gateway to 192.168.100.1 but the change does not seem to stick and next time one of the PCs is rebooted, it connects back to 192.168.100.2.

Any pointers would be appreciated.