Modem works fine in dial-up registration programs and telephone dialer but not in DUN. Modem diagnostics are OK. Problem happened suddenly after working properly for some time. When starting IE or Outlook, DUN attempts to dial ISP but there is no dial tone. Error message indicates problem with Remote Access Server. All settings appear normal including ISP settings which were reinstalled. Networking components installed include Client for Windows, TCP/IP and Dial Up Adaptor. Any suggestions would be appreciated. Note: WIN95 software is Japanese version.