[SOLVED] Confused about two sub-nets ?

[bluesjumper]

I'm not the most savvy with networking so please bear with me. I have my MR2600 router set up with DHCP range 192.168.1.100 to 192.168.1.249. Only my single wired device- my PC on ethernet - picks up an IP in this range. All my other clients are wireless and are in the 192.168.7.xxx range. How did this happen? And how can I get my PC to be on same subnet range as my other devices, as I'm trying to get DLNA to work between my PC/NAS (wired) and smart TV (wireless).

Thanks!!!

 

[Grobe]

Well, you haven't specified the actual sub-net mask used - this is most often either 255.255.255.0 or 255.255.0.0.

Another question - do you have more than one device on your network that act like dhcp server (i.e. another router or separate wi-fi spot or something) ?

 

[bill001g]

Does everything actually function.

Do you have a second router in your house.

 

[bluesjumper]

Yes everything works perfectly. I am just trying to get my PC (wired) and Smart TV (wireless) to be on same home network so I can do DLNA

IPCONFIG shows subnet 255.255.255.0
My router status page shows subnet 255.255.240.0

I just have a standard setup -- separate cable model (192.168.100.1) and router, both Motorola. I do have a TP Link repeater/extender but hardly any devices are connected to it.

 

[bill001g]

This can't actually work without there being another router. What I suspect is the device you call a repeater is actually running as a router and then passing the data back to the main router.

On one of the devices that have a 192.168.7 ip I assume if you do ipconfig /all the gateway is 192.168.7.1 ? What happens if you attempt to open a web browser with that IP.

There has to be some device between 192.168.7.x and 192.168.1.x network. Maybe you are connecting to the neighbors wifi

 

[bluesjumper]

My other device is a TP Link RE60X WiFi range extender. It has a static IP of 192.168.1.100

I definitely don't have any other routers and it's definitely my own internal wifi that I set up on my router.

All my 192.168.7.x devices are smart phones or smart lights....except that I just dusted off an old laptop. ipconfig indeed shows gateway 192.168.7.1

On this laptop, I can't open 192.168.7.1 on web browser.

HOWEVER I JUST MADE A DISCOVERY. It turns out that all these 192.168.7.x devices are on my GUEST network. When I connected my laptop to my main network, it picks up an IP of 192.168.1.173. Both 192.168.1.1 and 192.168.7.1 on web browser take me to router login page.

So it seems the GUEST network is somehow directing all devices to 192.168.7.x subnet. Maybe this is now a question for Motorola -- how can the main and guest network be on the same subnet?

 

[bill001g]

That is actually a better way to implement "guest" networks. Many routers use the same subnet but in some cases machine on the guest network and get access to machine on the main network. Mostly this is related to how some mesh systems implement guest. With different subnets it makes it much hard for traffic to flow between them.
As you have found out it works pretty well. I suspect the actual answer is to make sure your wifi devices use the SSID that is the main network rather than the guest.