I have a SuSE 6.3 system with the updates to ISDN4Linux. The ISDN T/A is an internal PCI card based on the HFC chipset. It is detected by the driver and everything loads correctly at boot up. I have set up the ISDN configuration files using YaSt and checked them manually. My ISP uses PAP authentication and pap-secrets seems to be configured correctly. I can connect using an analogue modem without difficulty. When trying to establish an ISDN link, the system dials the number, a connection is established briefly, and then it appears the remote server hangs up. The relevant extract from the log files follows below (i enabled debug and +pword), and I would be grateful for help, as I have tried everything I can think of to fix this problem, and I don't know what to do next. Thanks! Grant. isdnlog: Apr 26 10:40:33 * tei 113 calling 2548000, with ? RING (Data) isdnlog: Apr 26 10:40:34 tei 113 calling 2548000, with ? Time:Wed Apr 26 10:39:00 2000 isdnlog: Apr 26 10:40:34 tei 113 calling 2548000, with ? CONNECT (Data) isdnlog: Apr 26 10:40:34 tei 113 calling 2548000, with ? Unknown provider 33 ipppd[114]: Local number: 0, Remote number: 2548000, Type: outgoing ipppd[114]: PHASE_WAIT -> PHASE_ESTABLISHED, ifunit: 0, linkunit: 0, fd: 7 ipppd[114]: sent [0][LCP ConfReq id=0x1 <mru 1524> <magic 0x153a3c81>] kernel: isdn_net: ippp0 connected kernel: isdn_net: chargetime of ippp0 now 12643 ipppd[114]: rcvd [0][LCP ConfReq id=0x9f <auth chap md5> <magic 0x2f15245c>] ipppd[114]: sent [0][LCP ConfNak id=0x9f <auth pap>] ipppd[114]: rcvd [0][LCP ConfReq id=0xa0 <auth chap md5> <magic 0x2f15245c>] ipppd[114]: sent [0][LCP ConfNak id=0xa0 <auth pap>] ipppd[114]: rcvd [0][LCP ConfReq id=0xa1 <auth chap md5> <magic 0x2f15245c>] ipppd[114]: sent [0][LCP ConfNak id=0xa1 <auth pap>] ipppd[114]: rcvd [0][LCP ConfReq id=0xa2 <auth chap md5> <magic 0x2f15245c>] ipppd[114]: sent [0][LCP ConfNak id=0xa2 <auth pap>] ipppd[114]: rcvd [0][LCP ConfReq id=0xa3 <auth chap md5> <magic 0x2f15245c>] ipppd[114]: sent [0][LCP ConfNak id=0xa3 <auth pap>] ipppd[114]: rcvd [0][LCP ConfReq id=0xa4 <auth chap md5> <magic 0x2f1524a1> ipppd[114]: sent [0][LCP ConfRej id=0xa4 <auth chap md5>] isdnlog: Apr 26 10:40:36 tei 113 calling 2548000, with ? Normal call clearing (User) kernel: ippp0: remote hangup kernel: ippp0: Chargesum is 0 ipppd[114]: Modem hangup ipppd[114]: Connection terminated. ipppd[114]: taking down PHASE_DEAD link 0, linkunit: 0 ipppd[114]: sent [0][LCP TermReq id=0x2 6c 69 6e 6b 20 63 6c 6f 73 65 64] ipppd[114]: LCP is down ipppd[114]: closing fd 7 from unit 0 ipppd[114]: link 0 closed , linkunit: 0 ipppd[114]: reinit_unit: 0 kernel: ippp, open, slot: 0, minor: 0, state: 0000 kernel: ippp_ccp: allocating reset data structure ipppd[114]: Connect[0]: /dev/ippp0, fd: 7 isdnlog: Apr 26 10:40:36 tei 113 calling 2548000, with ? HANGUP ( 0:00:02 I=114.0 b O= 91.0 b)