Forum Discussion

Aspirant

Oct 25, 2019

Solved

RBR850 Changing Guest LAN IP subnet / Guest Wireless subnet- The IP address conflicts with the Guest

When I attempt to change my LAN subnet to 192.168.2.0 I get this error message. "The IP address conflicts with the Guest LAN IP subnet. Please enter a different IP address." So how do I change the...

ekhalil
Oct 27, 2019
If you like you can go for changing the guest network reserved address range using telnet commands as follows:

nvram set lan1_ipaddr=192.168.3.1
nvram set lan1_gateway=192.168.3.1
nvram set lan_ipaddr2=192.168.3.1
nvram set dhcp_start2=192.168.3.2
nvram set dhcp_end2=192.168.3.254
nvram commit
reboot the router
Set the LAN IP address to 192.168.2.1 in the Orbi web GUI under >> ADVANCED >> Setup >> LAN Setup

ekhalil

Master

Oct 26, 2019

In Orbi 850, the following is valid:

OpenVPN_TUN is using 192.168.254.0/24

The Guest network is using 192.168.2.0/24

These addresses are not configurable, but I think could be easily changed with telnet commands

OpenVPN:

openvpn_tun_ipaddr=192.168.254.1

openvpn_tun_netmask=255.255.255.0

Guest Network:

lan1_ipaddr=192.168.2.1

lan1_gateway=192.168.2.1

lan_ipaddr2=192.168.2.1

dhcp_start2=192.168.2.2

dhcp_end2=192.168.2.254

Z42985

Aspirant

Oct 27, 2019

Looks like the config command doesn't exist/isn't in the path anymore?

For now my work around to two issues caused by Orbi's lack of what I thought was basic flexibility (can't have two LAN SSIDs (For example 2.4 and 5Ghz SSIDs)) and can't use the 192.168.2.0 on the LAN subnet is to leave my old wireless router in place but with it's WAN and LAN ports connected to my LAN with DHCP disabled and one SSID disabled. Then anythings that connects to the old SSID or has a static 192.168.2.0 address can still operate and overtime I can go through reiping and reconnecting things. Kinda silly but I didn't think I was doing anything special on my network.

ekhalil
Master
Oct 27, 2019
But this will end you up with 2 networks, devices on one network will not be able to communicate with devices on the other network.
- Z42985
  Aspirant
  Oct 27, 2019
  Yeah, I also added a second IP to my desktop so it's on both which then allows me to connect to them to change their IPs.
  - ekhalil
    Master
    Oct 27, 2019
    If you like you can go for changing the guest network reserved address range using telnet commands as follows:
    
    nvram set lan1_ipaddr=192.168.3.1
    nvram set lan1_gateway=192.168.3.1
    nvram set lan_ipaddr2=192.168.3.1
    nvram set dhcp_start2=192.168.3.2
    nvram set dhcp_end2=192.168.3.254
    nvram commit
    reboot the router
    Set the LAN IP address to 192.168.2.1 in the Orbi web GUI under >> ADVANCED >> Setup >> LAN Setup