Hello ,
I've been trying to use my 3650 as a modem through IR but i get the error posted in the subject .The modem option on the phone is activated and it is connected with the pc and recognised as a modem ,i used *99***1# as a number as well as *99# but i got the same error.
Any ideas ?

if I remember (with my 7650), you must disable the checkbox in the router.

Domi.

Could you please be more specific ?