Can't access sb 6141 admin page when connected to RTN66U

[legendma]

Hoping someone can help. I got a SB 6141 connected to the Asus RTN66U. Internet and everything works fine. The default admin ip of the SB 6141 is 192.168.100.1. The RTN66U which has shibby tomato firmware installed is at default of 192.168.1.1. So I went ahead into the config of the RTN66U and changed LAN ip under Basic Network from 192.168.1.1 to 192.168.100.2 and to use IP Range of 192.168.101-151.

So now the RTN66U WebUI is accessible using 192.168.100.2 and all other systems connected are given ip of 192.168.100.1XX. Problem is that I can't ping or access the SB 6141 admin page using 192.168.100.1? I figured if I left the RTN66U at 192.168.1.1 subnet that I wouldn't be able to access the SB 6141 admin page using 192.168.100 since that would be in a different subnet.

Should I have left RTN66U at 192.168.1.1 and still be able to access admin of SB 6141 at 192.168.100.1? What am I doing wrong here? I know it's something simple I'm missing just for the life of me can't figure it out? Any assistance would be appreciated.

 

[RMerlin]

You can't have both WAN and LAN networks within the same segment - that won't work. Keep your LAN on 192.168.1.0, and follow this guide on how to properly configure routing access to your modem:

http://www.linksysinfo.org/index.php?threads/using-qos-tutorial-and-discussion.28349/#post-138477

 

[legendma]

You can't have both WAN and LAN networks within the same segment - that won't work. Keep your LAN on 192.168.1.0, and follow this guide on how to properly configure routing access to your modem:

http://www.linksysinfo.org/index.php?threads/using-qos-tutorial-and-discussion.28349/#post-138477

Thanks. Knew it was something simple I overlooked. Moved everything back to 192.168.1.x and I was able to access the admin page of the SB 6141 at 192.168.100.1.