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Forum Discussion
R6300v2 Providing Wireless but Not Ethernet Connectivity
First, I have avery vague grasp of how computers interact with the internet and am amazed by people who understand it better than myself. I'm hoping that some of might understand what I'm seeing abe...
I googled Comcast DNS servers and found that the nearest ones are in my hometown (68.87.77.134, 68.87.72.134). I logged into routerlogin.net and entered them in the Inter Setup section, DNS Address after clicking the Use These DNS Servers radio button. I then clicked the Apply button.
I then went to the computer I'm testing this on and got into the Ethernet Properties and did the same thing in the properties for TCP/IPv4. whatsmydns.net lists 75.75.75.75 and 75.75.76.76 as the primary DNS addresses for Comcast for IPv4. As I'm still not having any success, I'll be trying them next. From the same website I got the IP 2001:558:feed::1 . This seems to be a strange value so I didn't use it. If still unsuccessful, I'll try this value. Currently I've entered the Google IPv6 value you provided.
Does the router need to rebooted after making these changes or does the Apply button implement them immediately? I rebooted my test computer after making the changes to make sure they were refreshed.
When I click on the Network options in the lower right end of the tray, I'm still getting my functional wireless networks identified properly but the ethernet connection is identified as "Unidentified network, no internet access".
You should pick one option to configure DNS server addresses. Either configure them in the router or in all of your devices. If you configure them in your devices, then the settings in the router will be ignored.
If I were you, I would not use 68.87.77.134 and 68.87.72.134. If you want to use Comcast's DNS servers, stick with 75.75.75.75 and 75.75.76.76 . These are Anycast IP addresses, which means that DNS requests sent to these addresses will be automatically be forwarded by Comcast to the best DNS server inside their network. 2001:558:feed::1 is Comcast's IPv6 Anycast address for DNS. 2001:558:feed::2 is the other one.
You might want to consider disabling IPv6 temporarily in case it's the root of your problems.
I believe the router should apply changes to DNS settings immediately, but it wouldn't hurt to reboot just to be sure.
You should try doing some ping tests from your wired devices to localize the problem. Start by pinging your router's IP address. Then, try google.com or comcast.com. Also ping 75.75.75.75 and 8.8.8.8. This will inform you as to whether you have an IP or a DNS problem.
Got a question that might seem silly to you. How do I disable IPv6? Just uncheck the box in Ethernet properties?
Pinging my router was fine (0% loss). Pinging 75.75.75.75 and 8.8.8.8 were the same, as was pinging www.google.com. However, pinging www.comcast.com was a complete failure (100% loss).
I also changed the computer's IPv4 properties to find DNS automatically and changed the setting on my router to use 75.75.75.75 and 75.75.76.76. When I clicked on apply, my computer reported an error and rebooted (happened faster than I could read the message). After rebooting, I cannot access routerlogin.net from my test computer or my wife's laptop. I vaguely remember that the internal address for the router is a standard value but I do not know what that is.
Also, after the reboot, my extended wireless is not accessing the internet but the main wireless from the router is(just one fewer bars). Needless to say, I switched to using the main wireless network option.
Is it possible that this router is giving up the ghost? I've only had it 2-3 years.
Your computer rebooted after changing the DNS addresses on the router? That's odd.
Anyway, router's default IP address is 192.168.1.1. Run ipconfig /all on the computer to check that it has an IP address. If it's 169.254.x.x, then that means it failed to obtain an IP address from the router.
You didn't mention previously that you have an extender. Your priority should be to get things working with your router first. Then add the extender later.