Topic 'Re: [OOL] Home network DHCP routers not working since storm' in forum 'OptimumOnline' - dslreports.com

Re: [OOL] Home network DHCP routers not working since storm

Thu, 08 Nov 2012 19:58:42 EDT

anon posted : Just a follow up, as i didn't have connection for a few days. Tonite it returned. But routers still wouldn't work. I tried Googles DNS servers in the routers manual DNS and it worked! (wireless also working) SO...hopefully it keeps working.

PS: Googles DNS servers are
8.8.8.8
8.8.4.4
if someone else needs 'em!

Thanks for the suggestions everyone.

Re: [OOL] Home network DHCP routers not working since storm

Sun, 04 Nov 2012 23:43:35 EDT

frdrizzt posted : Does your router have an IP address? What is it? Is it assigned by DHCP?
Does your PC have an IP address? What is it? Is it assigned by DHCP?

If your router has a valid public IP, and your PC has a valid private IP (since it can hit the router, that should be fine), try to ping a website. Can you ping a website by it's domain name? Can you ping an IP address?

Re: [OOL] Home network DHCP routers not working since storm

Sun, 04 Nov 2012 15:56:08 EDT

anon posted : Nothing in so far as the routers that worked prior to the storm no longer connect to the internet. And computers cant connect via the router. I can login to the router via a computer and it says it is connected to the cable modem and obviously it handed out a address to the computer, but..no access to the internet from any computer plugged into the router (or wireless either) but..if a computer is plugged directly to the modem it connects perfectly. Strange indeed.
I have to work, but as soon as i can do a few more tests i will.

Thanks

Re: [OOL] Home network DHCP routers not working since storm

Sun, 04 Nov 2012 12:52:17 EDT

Millwood posted : Nothing works is a pretty broad symptom. What actually doesn't work?

Examples.

My computer can't get an IP address. (Windows calls that no internet access).
My computer can't ping the router.
My computer can't open the router web page.
My computer can't talk to other computers on my network.
My computer can't talk to the internet.

Re: [OOL] Home network DHCP routers not working since storm

Sun, 04 Nov 2012 12:43:18 EDT

anon posted : Good idea, i'll try the mac address ( of the computer that is working) on the router. And i'll try one more lonnnng power off cycle...then i think it's the dreaded support call. (Although as soon as i mention "router" they will more than likely say..."we don't offer support for router issues" lol ) But maybe they can reset the cable modem at least.

But thanks for the suggestions.

Re: [OOL] Home network DHCP routers not working since storm

Sun, 04 Nov 2012 10:01:51 EDT

TheWiseGuy posted : Well on the off chance that some setting is messed up at the headend, or your modem is simply stuck and not releasing the MAC address, simply clone the laptop MAC address to the WAN interface of a router you want to use.
--
Warning, If you post nonsense and use misinformation and are here to argue based on those methods, you will be put on ignore.

Re: [OOL] Home network DHCP routers not working since storm

Sun, 04 Nov 2012 09:35:21 EDT

anon posted : Thanks for the replys, but i have done all of that already, 20 times.
not to mention, nothing had power for nearly 48 hours.

When power was restored, none of the routers worked. Trying some other routers (older ones without wireless) i had, as i mentioned, also did not work.

I do this all the time and this is something i haven't seen before. The ONLY thing that works is a direct connection to the modem.

I'll keep working on it, if anyone has any more "technical" suggestions, would appreciate it.

Thanks!

Re: [OOL] Home network DHCP routers not working since storm

Sun, 04 Nov 2012 08:01:46 EDT

RickNY posted :

said by JEC581 :

NOW what has Cablevision done! Anyone else have any issues with DHCP on their home networks.

Cablevision has done nothing -- YOU haven't power cycled the router after you connected the modem to the PC that works. And like TheWiseGuy said, if your modem has battery backup inside, you need to bypass that when power cycling.

Re: [OOL] Home network DHCP routers not working since storm

Sun, 04 Nov 2012 07:13:43 EDT

TheWiseGuy posted : As said by Jmartz , when you change devices you need to reboot the modem. If you have a modem with Internal Battery Backup, you probably also need to disconnect the Coax Cable when changing routers/computers connected to the modem.
--
Warning, If you post nonsense and use misinformation and are here to argue based on those methods, you will be put on ignore.

Re: [OOL] Home network DHCP routers not working since storm

Sat, 03 Nov 2012 23:57:46 EDT

Jmartz posted : Nope. Everything is fine.

When you change your router you need to reboot the modem. At this point you may want to unplug all of your network equipment and shut down all of your computers/devices attached to your router. Then turn the modem on, then turn the router on, then turn switches, and finally computers/tivos, etc.

You need to clear all the IP addresses. You probably have conflicts internally too. It can happen.

[OOL] Home network DHCP routers not working since storm

Sat, 03 Nov 2012 22:12:27 EDT

anon posted : I've tried 5 different Netgear and Lynksys routers (some were older ones i had stored away and kept as backups), and none will work since cable was restored after the storm.

I CAN connect to ONE computer directly from the Cablevision modem.

If i try to connect via a DHCP router, nothing works. EVERYTHING worked fine before the outage.

NOW what has Cablevision done! Anyone else have any issues with DHCP on their home networks.

Thanks