Chief among my many difficulties, is the inability of our PPP stack and the WMP100 to negotiate PPP for APNs that do not require usernames and passwords. I have been successful in connecting with APNs that DO require usernames and passwords. Essentially, what I see is our PPP stack rejecting the initial LCP configure from the WMP (because of PAP). The WMP sends a new LCP configure request, without PAP, which we ACK. The WMP100 ACKs our LCP config request without any issues. We then proceed to send an IPCP configure request (same options that work on APNs with usernames and passwords), and receive an LCP terminate request from the WMP several ms later. Preceeding the PPP session is: AT&C1 -> OK AT+CGDCONT=1,"IP","VARIOUS APNS" -> OK ATDT -> CONNECT I've done the requsite Googling, and have found problem descriptions on several other sites with the PPP traces that look identical to what I am seeing, however, without answers. Does anyone have any insights into this issue? Thanks much!