DSL modem help

[Regular Joe]

We recently purchased a new computer and have had no success getting online with our dsl modem. If we hook up our old computer to the modem, everything goes smoothly. When trying to connect with the new one, the modem light flashes green for about 10 seconds, then turns red.

Any ideas, guys??



Thanks!
"Joe"

 

[THE KOD]

it sounds like the telephone line may not be hooked up properly.

There is a on / off switch on the right side in the back. Turn that sucker on and off and let it reset.

KOD

 

[Regular Joe]

Scott,

We've tried resetting it with no success. For some weird reason, it only works with the old computer. With the new one, it seems to WANT to connect, but fails for some strange reason. It's becoming a pain in the arse.



Thanks, tho!

"Joe"

 

[loungelizard]

what kinda modem, computer, who is your dsl provider?

 

[KMA]

More than likely, you are connecting over DSL using PPPoE - which will require you to do one of two things:


1. Get a DSL router and configure it to stay connected to your DSL and be your hardware firewall, and tehn connect as many machines to the router as it has Ethernet ports (or get a wireless router)



2. Install the PPPoE software (typically provided by your ISP) and configure your new machine to connect using your DSL

 

[KMA]

You might just want to call your ISP, the ISP knows what to expect from the customer's line. But if the PadI and PADo packets dont come through from the new machine it it not going to make through the inner loop to the CO.
Plus, the new machine will ne required to conform with the PPPoE standard (reference: RFC 2516) by lowering the MTU to 1492, because of the 8 Byte PPPoE header which has to come out of the MSS payload of 1460.

1460 - 8 = 1452, add 20 Bytes for the TCP header and 20 for the IP header, for a MTU of 1492. All the DSL routers in the market now have the configuration setting to accomplish this.

If you have any difficulty with the technical config. stuff your best bet would be to call your ISP's tech support, they will walk you thru it in no time.

 

[Stuman]

Sometimes ISP's configure their equipment not to work if your MAC address changes. Most of the time, if you power-cycle the modem it will solve your problem. Notate exactly which lights are on/green with your old computer and compare the lights with the new system. Which light is turning orange? What is the status of your other lights with the new system. What brand of modem is it?

 

[Nosigar]

Sounds like a driver problem to me. Call your ISP. You could be on the phone for a while, but for me they always get it fixed.

 

[Felonious Monk]

(reference: RFC 2516) by lowering the MTU to 1492, because of the 8 Byte PPPoE header which has to come out of the MSS payload of 1460. 1460 - 8 = 1452, add 20 Bytes for the TCP header and 20 for the IP header, for a MTU of 1492.

What KMA was really trying to say was this:

+??
??
−?? exp(−x2) dx = ??? ∆u = ??u = n ??
i = 1 ??2u/??xi2



hope that helps.

 

[Penguinfan]

This is a silly question, but you do have it plugged into the ethernet card and have that driver installed correctly?

Penguinfan