complex (for me) home network over wifi

[lawrencesproul]

I have a Netgear R7800 as my primary router with DHCP active. WAN goes to Internet.
1 Wired LAN port goes to Satelite TV Provider.
1 Wired Port goes to Ubuntu box running Server 18.04.
Most Clients connect over WIFI from R7800.
One of the Wifi clients is a multifunction print/scan/etcetera.
All of the above works Fine.

I need to connect a Smart TV over wired LAN because the WIFI is broken.
I cannot install a wire between the R7800 and the TV.
I have good WIFI signal from the R7800 near the TV.
I have another WIFI Router (Netgear WNDR3400) connected to the TV by wire.
The Ubuntu Box has a WIFI adapter(ASUS PCE-AC55BT) installed and able to connect to the WNDR3400.

How do I configure the WNDR3400 and the Ubuntu Box such that I can plug the TV into one of the Wired Ports and have free access to Internet through the R7800?
And I need to ensure that whatever I connect to the WNDR3400 has full access to the Multifunction, the Samba Share on the Ubuntu Box and to a NAS which I will be adding soon.
I could replace the WNDR3400 firmware with dd-wrt, but prefer to leave it stock.
I dont have access to the settings for the R7800.
The WNDR bridge setting requires cable connection to R7800, which cannot happen as there is no way to run a cable, if there were, I would just connect the cable directly to the TV.

I think I need to have the WNDR on a separate subnet and have the Ubuntu Box transfer the traffic between the two subnets.

 

[jsmithepa]

If everything is on the same subnet, everybody will be able to talk to everybody else, and at first glance all u have to do is to configure the second WIFI router as an Access Point and you are all set.

 

[kanewolf]

Why is the WIFI adapter and the WNDR3400 required for the Ubuntu box? At the top of the page you you say the Ubuntu is wired to the R7800...

 

[lawrencesproul]

@ jsmitepa - how do I get these all to the same subnet? the R7800 puts it direct connection on 10.0.1.x and the wndr3400 puts its stuff on 10.0.2.x
the wndr3400 keeps trying to send traffic over it's WAN port, rather than to the Ubuntu box. And how to get the Unbuntu Box's WIFI to send traffic to the R7800 from its WIFI adapter?

@ kanewolf as indicated in the question, I need wired connection where I cant run a wire. So I am trying to make a bridge setup from Ubuntu to the second wifi router. The second router provides the wired lan port that I need. The two wireless routers don't seem to be able to be set up as bridge without both being dd-wrt or other custom firmware. I cannot change firmware or settings on one of the routers, so I have full control of the Ubuntu and WNDR3400 to make the bridge, but it is not working yet.

 

[Alabalcho]

Two questins:
- Do you have WiFi coverage from the main router at TV' physical location (or close by, where you can run a cable)?
- Would'nt it be much easier if you use your WNDR3400 as client bridge (if supported), or just spent $25 for purpose-made device?
- Or use pair of PowerLine adapters?

 

[kanewolf]

@ jsmitepa - how do I get these all to the same subnet? the R7800 puts it direct connection on 10.0.1.x and the wndr3400 puts its stuff on 10.0.2.x
the wndr3400 keeps trying to send traffic over it's WAN port, rather than to the Ubuntu box. And how to get the Unbuntu Box's WIFI to send traffic to the R7800 from its WIFI adapter?

@ kanewolf as indicated in the question, I need wired connection where I cant run a wire. So I am trying to make a bridge setup from Ubuntu to the second wifi router. The second router provides the wired lan port that I need. The two wireless routers don't seem to be able to be set up as bridge without both being dd-wrt or other custom firmware. I cannot change firmware or settings on one of the routers, so I have full control of the Ubuntu and WNDR3400 to make the bridge, but it is not working yet.

You would be better off setting the WNDR3400 as an access point. Plug the cable that is currently going to the Ubuntu box into the WNDR LAN port. Then use another LAN port for the Ubuntu box. The access point will provide WIFI for the TV using only network hardware instead of using the Linux box as a bridge.