Android TV to stream from a Laptop that has a router in between the TV box and laptop

[K3nobi]

To better visualize things, I did a quick sketch in ms paint:

 

Right now the problem is that the TV box can't see my laptop but it can see my brother's PC in the network, what settings or configurations do I have to change so I can stream files from my laptop to the TV box?

[Kilrah]

Remove the 2nd router, it separates the networks so can't work that way. What's the reason for having it?

[K3nobi]

11 minutes ago, Kilrah said:

Remove the 2nd router, it separates the networks so can't work that way. What's the reason for having it?

It's gonna sound stupid but I can't really remove the second router. There's many reasons for it, including us not having a long enough Ethernet cable to my laptop and my other brother not being able to connect to the main router Wi-Fi due to range, I know this isn't the best solution but this is what we have and probably won't be changing anytime soon cause of other problem so we're just gonna have to settle with it.

 

Is there any other way to do it without removing the second router? Maybe like port forwarding or something?

[Kilrah]

Yes, you should change the 2nd router's configuration so it doesn't act as a router but just a switch/AP. It might have a specific mode for that, alternatively you disable DHCP on it and connect everything to the LAN ports (leaving the WAN port empty). 

[K3nobi]

4 hours ago, Kilrah said:

Yes, you should change the 2nd router's configuration so it doesn't act as a router but just a switch/AP. It might have a specific mode for that, alternatively you disable DHCP on it and connect everything to the LAN ports (leaving the WAN port empty). 

Thanks for the solution, the TV box can finally see my laptop, but when I select my laptop all it says is "search result is empty" and "access fail", I assume I'm gonna have to create a new thread on a different subforum for this issue?

[Kilrah]

Did you share files on that machine?