Netgear internet connection problem

Everything was working fine until I disconnected both cable modem and
router for a couple of days.

When connecting them back, the router connects to my ISP, but I don't
have access to the internet, it get an IP, but my ISP's technician
can't ping it.

I have 2 computers connected to the router and they communicate
correctly with each other, but I can't ping the DHCP server from any
of them, looks like the router can't communicate with the modem.

I changed cables, reset the configuration, I'll probably get another
router, but I wan to make sure that's the problem.

(E-Mail Removed) hath wroth:

>Everything was working fine until I disconnected both cable modem and
>router for a couple of days.

Did you disconnect just the data cables, turn off the power, or both?

>When connecting them back, the router connects to my ISP, but I don't
>have access to the internet, it get an IP, but my ISP's technician
>can't ping it.

Duh. How do you know that the router gets an IP address? The only
way you can do that is to actually login to the router. That means
your unspecified router is mostly working.

Does your unspecified router have:
1. A log output?
2. A "status" page?
3. Some internal diagnostics such as ping?

>I have 2 computers connected to the router and they communicate
>correctly with each other, but I can't ping the DHCP server from any
>of them, looks like the router can't communicate with the modem.
>
>I changed cables, reset the configuration, I'll probably get another
>router, but I wan to make sure that's the problem.

What IP addresses are on your two computers? If it's 192.168.xxx.xxx
or something similar, the DHCP server in the unspecified router is
working. If one of these has a routeable IP address that you would
expect to find from your ISP, then you have the cabling all screwed up
between the modem, router, and clients. If it's 169.254.xxx.xxx, then
DHCP didn't work and something MIGHT be wrong with the router. You
might want to try a grand reset of the router before spending money
(last resort).

Come ISP's authenticate by the MAC address of the client. You may
need to login to the router, and clone the MAC address of the
workstation that did the original configuration.

Also, try bypassing the router and just connecting your windoze box to
the cable modem. Don't leave it like that for long, but that will
confirm that you have a functional connection. Be sure to power cycle
the cable modem (and later the router) when you juggle connections as
it has to load the new MAC address of its connected devices.


--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

+ I disconnected all cables
+ I can connect to the router from every computer because I can access
the router's web interface. It has a status, but no ping and a
limited log.
+ My router gets an IP because the router status shows it. Also shows
the DHCP and DNS server. There is a test connection button but it
always fails. The test tries to open the Netgear web page.
+ IP's in the clients are: 192.168.xxx.xxx, set as static IP's or
dynamic
+ I did a full reset of the router
+ There is a MAC address validation from my ISP, so they will notice
about the router (they charge more if you have one). I have the option
"Use default" which uses the router MAC address. If I use the
computer directly,
I can't connect, because the MAC address is not the default one.

I have 2 more computers that connect wirelessly, with the same problem.
I can see the other computers, but they can't go beyond the router.

I'll try the netsh commands and see if that works, otherwise, I'll try
with a new router or the computer directly.

It worked, I re-connected my computer and I got internet connection, of
course my ISP had to reset the modem and the MAC address. I reconnected
the router and I set to give the computer MAC address, and it worked.

Thx