Wifi devices get different subnet's IP address assigned

[canabino]

My RT-AC5300 with Merlin firmware is running in router mode behind my ISP's router.
I am not able to connect to my Asus Router's Webgui or SSH from any WiFi connected devices. (LAN connected devices can access the RT-AC5300)
The problem is weird because the device shows it as connected to the Asus router's SSID but the IP address assigned to it is from the ISP router's DHCP pool.
Any help is appreciated.

 

[ColinTaylor]

Are you connecting to your ISP router's WiFi (same SSID) by mistake?

 

[canabino]

Are you connecting to your ISP router's WiFi (same SSID) by mistake?

Hi, Colin. No, my ISP's router WiFi SSID is completely different from my Asus Router's

 

[ColinTaylor]

Are you connecting to the Asus' guest WiFi network #1 which has an IP address of 192.168.101.x or 192.168.102.x?

 

[canabino]

Are you connecting to the Asus' guest WiFi network #1 which has an IP address of 192.168.101.x or 192.168.102.x?

No, the guest Network is disabled

 

[ColinTaylor]

Can you post a screenshot of your System Log - Wireless Log. (don't obscure any of the IP addresses).

 

[canabino]

Can you post a screenshot of your System Log - Wireless Log. (don't obscure any of the IP addresses).

 

[ColinTaylor]

Neither of those two devices have connected successfully to the router, they have no IP address. If you're seeing an IP address in the Network Map page it's likely to be stale information, or an address it had previously obtained.

Are these devices configured as DHCP clients?

Have you got any more WiFi devices to test with?

 

[canabino]

That is why it is so weird. My phone which is the Xiaomi device shows it is connected to the Asus router but it's IP ad is not on the same subnet. They are configured as DHCP clients. I have tried to connect from my laptop as well but it also gets a IP address assigned to it from my ISP's router subnet. They are all able to connect to the internet but can't access the Asus router's Webgui because they are on another subnet. I have restarted the router and gone through the settings but can't find anything.

 

[ColinTaylor]

What is the make and model of your ISP router?

What is the first 3 octets of the addresses your WiFi devices are getting?

Do you have any custom scripts installed on the Asus router? If so, try disabling those (Administration - System) and rebooting the router.

Otherwise I'm out of ideas. You could save the entire syslog and upload it to pastebin.com. We might be able to spot something.

 

[canabino]

My ISP's router is a TPlink Archer XR500v.
The WiFi devices are getting 192.168.100.x addresses assigned.
Asus router is on the 192.168.50.x subnet.
I am not running any custom scripts. Only scMerlin
Thanks for looking into it. I will continue to troubleshoot and maybe do a system restore and start fresh.

 

[dave14305]

Is the Asus still in Router mode?

 

[canabino]

Is the Asus still in Router mode?

Hi Dave. Yeah it is in router mode.

 

[Tech9]

What your WAN, Internet Connection in Asus GUI page looks like?

 

[canabino]

What your WAN, Internet Connection in Asus GUI page looks like?

It is setup to use DHCP from the ISP router.