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error code 721 ( ppp & dun related)

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3 replies

by shortstuff

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Hi guys, I recently built a new system for a friend that worked fine while conected to my lan. No probs with internet connection etc. However, after he's installed his own ISP's usb adsl modem and setup he finds he cant connect to the ISP/internet.
Instead he gets a error 721 ( which I believe relates to a PPP error.) The strange thing is if i connect his old machine it can use the modem etc without problems.
So far I've checked the settings, fushed the registry key using netsh etc reinstalled the modem drivers and created a new dun setup.
Now I've come to a loss .. and I cant find any other help topics on google etc
Unfortunately the ISP isnt any help what so ever.
Is there a way to transfer the old DUN settings etc to the new PC?
He's running XP pro on both machines, SP2, all the latest updates, the new system having a 2600 dual core processor and 1 Gb of memory installed
any help would be appreciated,
many thanks
glenn

3 replies

by oh smeg

Files & Settings Transfer Wizard in XP?

Col

by thumbsup2

First, why are you attempting to use DUN if he has a USB ADSL Modem? The USB simply provides a type of "network" connection to the modem. The modem itself should do the negotiating and it shouldn't need to "dial". It's always on. It only needs to be configured to send the appropriate login credentials. The computer itself should be set to get an IP dynamically from the ADSL modem and set to always connect to the internet through the LAN.

Second, if running the setup program provided by the ISP has caused the problem, and more than likely it has so that's why I personally suggest you never use their setup crap, he needs to force the ISP to provide technical assistance to get his connection going. If he ends up speaking to a tech that doesn't solve the problem, ask to speak to their supervisor and keep going up the chain of command until the problem is solved.

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