Networking Issue, but read carefully

[beers]

could have a duplicate IP address.

Pretty much this. What IP did you give the extension router?

 

[johnb35]

Also, do you have the cable plugged into the wan or lan port? Technically either will work, its just that if you use the lan port and make sure the second router is configured correctly then all devices attached to either router can see and share files with any device.

 

[Rod Bishop]

I do have the shareing and discovery of files turned off on all three PCs. Would that make a difference?

 

[voyagerfan99]

I do have the shareing and discovery of files turned off on all three PCs. Would that make a difference?

No.

 

[beers]

I do have the shareing and discovery of files turned off on all three PCs. Would that make a difference?

That doesn't sound like a response to what we were asking for

 

[Renzore101]

@Rod Bishop I suggest you download the following program: https://github.com/angryziber/ipscan/releases/download/3.5.1/ipscan-3.5.1-setup.exe

Install and run a scan on your network while all devices are connected and provide us with the output.

 

[Rod Bishop]

IP: 192.168.0.1
Ping: 0 ms
Hostname: modem
Ports: [n/s]
IP: 192.168.0.3
Ping: 0 ms
Hostname: R-PC.Home
Ports: [n/s]
All the rest show nothing

 

[Renzore101]

IP: 192.168.0.1
Ping: 0 ms
Hostname: modem
Ports: [n/s]
IP: 192.168.0.3
Ping: 0 ms
Hostname: R-PC.Home
Ports: [n/s]
All the rest show nothing

Okay, if the other PC's are powered up on your network some software firewall may be blocking the ping response I would guess. Do this - Use your machines on your network as you expect them to work. Type the command arp -a on all of the machines from a command prompt window and save the output. Once one of the PC's loses internet connectivity as you described type the following command in a command prompt window a second time on that trouble PC: arp -a

Save this command output and provide the before and after output results here for the PC that loses internet connectivity.

 

[Rod Bishop]

This is my PC which is plugged in the main router

Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Users\R>arp a

C:\Users\R>arp -a

Interface: 192.168.0.3 --- 0x9
Internet Address Physical Address Type
192.168.0.1 a0-a3-e2-b6-53-f0 dynamic
192.168.0.2 00-1a-a0-76-9c-e7 dynamic
192.168.0.4 00-0f-66-ed-5f-48 dynamic
192.168.0.255 ff-ff-ff-ff-ff-ff static
224.0.0.22 01-00-5e-00-00-16 static
224.0.0.251 01-00-5e-00-00-fb static
224.0.0.252 01-00-5e-00-00-fc static
239.255.255.250 01-00-5e-7f-ff-fa static
255.255.255.255 ff-ff-ff-ff-ff-ff static

C:\Users\R>

This is from the 3rd PC which is wifi off the extension router

Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Users\k>arp -a

Interface: 192.168.0.4 --- 0xa
Internet Address Physical Address Type
192.168.0.1 44-94-fc-02-ce-4a dynamic
192.168.0.255 ff-ff-ff-ff-ff-ff static
224.0.0.22 01-00-5e-00-00-16 static
224.0.0.252 01-00-5e-00-00-fc static

C:\Users\k>

This is from the second that's plugged into the main router


Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Users\Computer>arp -a

Interface: 192.168.0.2 --- 0x8
Internet Address Physical Address Type
192.168.0.1 a0-a3-e2-b6-53-f0 dynamic
192.168.0.255 ff-ff-ff-ff-ff-ff static
224.0.0.22 01-00-5e-00-00-16 static
224.0.0.252 01-00-5e-00-00-fc static
226.178.217.5 01-00-5e-32-d9-05 static
239.255.255.250 01-00-5e-7f-ff-fa static
255.255.255.255 ff-ff-ff-ff-ff-ff static

C:\Users\Computer>

 

[beers]

192.168.0.1 44-94-fc-02-ce-4a dynamic

Yep, device IP overlap. See where they both have the same gateway address and different MACs? That's assigned to both devices.

If you're using the LAN interface of the extension router then this will cause you some heartburn in connectivity. Realistically you'd want to give it a unique address and just let the ISP facing router do all of the layer 3 traffic.

Assign 192.168.0.254/24 to the extension router, and ensure the DHCP server is disabled on that device.

 

[Rod Bishop]

192.168.0.254/24 right?

 

[beers]

Sure, or any other IP really in that same 192.168.0.x subnet. I just chose the highest one in that range since it's both memorable and doesn't immediately overlap with your DHCP scope.

 

[Renzore101]

I would say that you may want to make a static reservation for this address, however if you don't plan on having 254 devices on your network then you should be gravy.

 

[Rod Bishop]

I made the change to 254 just now and I'm 10 minutes into the new setup. I'll let the three PC's cook for at least an hour before shutting everything down for the night.

I'll post tomorrow afternoon after the three systems have been cooking for a few hours.

Thanks for the help in advance.

 

[Rod Bishop]

All three PCs are working now without interference from each other, but now the third PC which in wifi off the second router, is slow to load on the internet.
If you click on EBAY on the first two PCs the screen fills out instantly, but now the third PC screen loads like in running on dial-up.
My DSL is the best I can get for my area, 5.888, but even if I turn off one of the two PCs working on the main router the wifi PC is very slow.

 

[beers]

You can turn on wifi for it if it gave you better coverage, just use one of the other 2.4 channels (1,6 or 11).

 

[Renzore101]

All three PCs are working now without interference from each other, but now the third PC which in wifi off the second router, is slow to load on the internet.
If you click on EBAY on the first two PCs the screen fills out instantly, but now the third PC screen loads like in running on dial-up.
My DSL is the best I can get for my area, 5.888, but even if I turn off one of the two PCs working on the main router the wifi PC is very slow.

Your DSL connection speed most likely has nothing to do with the performance issue if the hard wired PC's are functioning as expected. How far is the third PC from the wifi router? What wifi standard is your wireless router running? (a,b,g,n) Are there any sources of interference between your wifi router and the wireless PC?

 

[Rod Bishop]

As of today, we do notice a slow down in speeds due to the redo of the extension router. Speeds meaning as a window opens, it's kinda like dial up. You can actually watch the screen fill out from top to bottom, like in the old days.

All three PCs are stable now, one does not knock down one of the others, but each PC is slower to load, not something I can't live with just to have everything working if I need to be in any room to keep up with the load.
Before, all three PCs worked great for about an hour, then the drop would happen usually on PC #2.



But I can live with this.

Thanks to all

 

[beers]

Simply changing the extension router IP should not impact any of that behavior.

 

[Rod Bishop]

I can live with the setup we have now and many thanks for the changes offered.

My other problem is probably the poor internet by Centurylink. We live where we want to live, in the country. Actually, we live in the middle of a forest. I bought 8 acres out of a hundred acres, and cut a narrow driweway down the middle and a 1/4 acre cleared in the center.
Our place is 90% shade, but the shade moves as the sun moves. It's beautiful here, but Centurylink is our only choice, sadly. I don't have enough sky for a dish internet system.

We can live with this until Centurylink improves the service.

Thanks