Question Routing problem with my home network ?

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cowhow

cowhow

Commendable
Jul 11, 2022
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I have a routing problem with my home network. I have an ARRIS TG2482 cable modem with an EEROS mesh behind it. When I put the ARRIS in bridge mode an HP AIO looses connectivity to the internet, but not the internal network. My smart TVs, laptops, phones, all connect but the AIO does not and neither do the kitchen appliances. For some reason NAT for the AIO stops when in bridge mode. I know this is a routing problem but I can't pinpoint where the break down is.

The EEROS gateway node does get the public IP in its WAN interface and should be performing NAT for the entire network but apparently it's not. What's driving me a little crazy is why this happens. It should be what works for one works for all. Please throw any advice you can my way. I'd really like to get this bee out of my bonnet.
 
cowhow said:
I have a routing problem with my home network. I have an ARRIS TG2482 cable modem with an EEROS mesh behind it. When I put the ARRIS in bridge mode an HP AIO looses connectivity to the internet, but not the internal network. My smart TVs, laptops, phones, all connect but the AIO does not and neither do the kitchen appliances. For some reason NAT for the AIO stops when in bridge mode. I know this is a routing problem but I can't pinpoint where the break down is.

The EEROS gateway node does get the public IP in its WAN interface and should be performing NAT for the entire network but apparently it's not. What's driving me a little crazy is why this happens. It should be what works for one works for all. Please throw any advice you can my way. I'd really like to get this bee out of my bonnet.
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How are the devices that lose internet connected vs the ones that keep internet?
 
kanewolf said:
How are the devices that lose internet connected vs the ones that keep internet?
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Nothing special. Two TVs, a Samsung and a Sony. The phones are iPhone and the laptop is a MacBook Pro.. The HP desktop is on Windows 10 Pro.. That's what's got me stumped, it's all pretty standard stuff.
 
kanewolf said:
Not the question... Are they all WIFI connected? Same WIFI SSID? Any wired devices? Is there a pattern in their physical connectivity?
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They are all wireless except the AIO which I also tried wired with the same results. The devices are connecting to the EERO router and getting an address but the outbound traffic never leaves the cable modem.
 
kanewolf said:
If the devices are wireless connected to EERO then the modem doesn't know about them. You need to look at the EERO.
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That’s a definite possibility. But I can see in the console of the EERO that they connect and get an IP. My thought is since NAT isn’t happen for whatever reason that the failing traffic does go out but with it’s internal, non-routable address and can’t make the return trip. But that still doesn’t answer why the EERO wouldn’t be NATIng those devices when it does for the others.

Logging is nonexistent on an EERO except for EERO support. The same is true about the cable modem. There is “some” logging but only 20-30 lines. Nothing helpful.
 
So called consumer "routers" are extremely stupid. They have almost no actual routing ability.

If you had come here and asked how do I make my router not NAT just one IP I would have told you it is impossible. It is actually fairly tricky to do on a actual router.

Can you ping the router IP from your PC. Can you get into the admin screen of the router. None of this passes through the NAT so it should work.

Most cable modems when you put them in bridge mode use 192.168.100.1. Can you get into that from your pc. You should also check devices you know are working correctly. This is not real important but it will show if traffic is passing.

Can you ping by IP address from your. What happens if you ping 8.8.8.8. If this works it indicates a DNS issue.

I guess at this point you can check the so called routing on your pc. It should be very simple unless you have multiple nics or VPN software.
First do IPCONFIG /all. Check that you have proper IP address/mask/gateway/dns on the interface. You really should only have 1 active interface, sometimes windows is stupid if you have both wifi and ethernet connected at the same time.

Next try ROUTE PRINT
Key is the the 0.0.0.0 route goes to the proper gateway IP.
 
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