1. In the modem properties make sure that the port speed is not set too low.
   
   
2. Open up the "Port Settings" and make sure that FIFO's are on and not set too low. Try playing around with these settings until the error goes away.
   
   
3. Try uninstalling and reinstalling the modem.
   
   
4. Try uninstalling and reinstalling DUN/RAS and all its associated components.
   
   
5. Refer to computer manufacturer.
   
   

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