PPP LCP Protocol-Reject

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  • #27265

    I have deployed a number of MTCDT-LEU1-246L-EU-GB units in the field with no problems. Recently received two MTCDT-LEU1-247L-EU-GB models and cannot establish a reliable PPP liink via the GSM. Below is the log file detailing the fault, as can be seen the process fails with message:

    Protocol-Reject for ‘Compression Control Protocol’ (0x80fd) received

    I would appreciate any assistance. Thanks

    Feb 18 07:06:30 mtcdt daemon.notice pppd[2511]: pppd 2.4.7 started by root, uid 0
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: abort on (NO DIAL TONE)
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: abort on (NO DIALTONE)
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: abort on (NO ANSWER)
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: abort on (NO CARRIER)
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: abort on (DELAYED)
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: abort on (VOICE)
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: abort on (BUSY)
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: send (AT^M)
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: expect (OK)
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: AT^M^M
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: OK
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: — got it
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: send (ATZ^M)
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: expect (OK)
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: ^M
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: ATZ^M^M
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: OK
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: — got it
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: send (AT+CSQ^M)
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: expect (OK)
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: ^M
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: AT+CSQ^M^M
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: +CSQ: 5,99^M
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: ^M
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: OK
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: — got it
    Feb 18 07:06:31 mtcdt local2.info chat[2518]: send (AT+CGDCONT=1,”IP”,”Unrestricted”^M)
    Feb 18 07:06:32 mtcdt local2.info chat[2518]: expect (OK)
    Feb 18 07:06:32 mtcdt local2.info chat[2518]: ^M
    Feb 18 07:06:32 mtcdt local2.info chat[2518]: AT+CGDCONT=1,”IP”,”Unrestricted”^M^M
    Feb 18 07:06:32 mtcdt local2.info chat[2518]: OK
    Feb 18 07:06:32 mtcdt local2.info chat[2518]: — got it
    Feb 18 07:06:32 mtcdt local2.info chat[2518]: send (ATD*99***1#^M)
    Feb 18 07:06:32 mtcdt local2.info chat[2518]: timeout set to 120 seconds
    Feb 18 07:06:32 mtcdt local2.info chat[2518]: expect (CONNECT)
    Feb 18 07:06:32 mtcdt local2.info chat[2518]: ^M
    Feb 18 07:06:32 mtcdt local2.info chat[2518]: ATD*99***1#^M^M
    Feb 18 07:06:32 mtcdt local2.info chat[2518]: CONNECT
    Feb 18 07:06:32 mtcdt local2.info chat[2518]: — got it
    Feb 18 07:06:32 mtcdt local2.info chat[2518]: send (^M)
    Feb 18 07:06:32 mtcdt daemon.debug pppd[2511]: Script /usr/sbin/chat -v -t 90 -f /etc/ppp/peers/gsm_chat finished (pid 2518), status = 0x0
    Feb 18 07:06:32 mtcdt daemon.info pppd[2511]: Serial connection established.
    Feb 18 07:06:32 mtcdt daemon.debug pppd[2511]: using channel 1
    Feb 18 07:06:32 mtcdt daemon.info pppd[2511]: Using interface ppp0
    Feb 18 07:06:32 mtcdt daemon.notice pppd[2511]: Connect: ppp0 <–> /dev/modem_at0
    Feb 18 07:06:33 mtcdt daemon.warn pppd[2511]: Warning – secret file /etc/ppp/pap-secrets has world and/or group access
    Feb 18 07:06:33 mtcdt daemon.debug pppd[2511]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0xcf4a907a> <pcomp> <accomp>]
    Feb 18 07:06:33 mtcdt daemon.debug pppd[2511]: rcvd [LCP ConfReq id=0x0 <asyncmap 0x0> <auth chap MD5> <magic 0x45220544> <pcomp> <accomp>]
    Feb 18 07:06:33 mtcdt daemon.debug pppd[2511]: sent [LCP ConfAck id=0x0 <asyncmap 0x0> <auth chap MD5> <magic 0x45220544> <pcomp> <accomp>]
    Feb 18 07:06:33 mtcdt daemon.debug pppd[2511]: rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0xcf4a907a> <pcomp> <accomp>]
    Feb 18 07:06:33 mtcdt daemon.debug pppd[2511]: rcvd [LCP DiscReq id=0x1 magic=0x45220544]
    Feb 18 07:06:33 mtcdt daemon.debug pppd[2511]: rcvd [CHAP Challenge id=0x1 <7c508265f430724e680bec2adaeee0ee>, name = “UMTS_CHAP_SRVR”]
    Feb 18 07:06:33 mtcdt daemon.warn pppd[2511]: Warning – secret file /etc/ppp/chap-secrets has world and/or group access
    Feb 18 07:06:33 mtcdt daemon.debug pppd[2511]: sent [CHAP Response id=0x1 <389822aef0aa02b2f4c7d525631a4392>, name = “mtcdt”]
    Feb 18 07:06:33 mtcdt daemon.debug pppd[2511]: rcvd [CHAP Success id=0x1 “”]
    Feb 18 07:06:33 mtcdt daemon.info pppd[2511]: CHAP authentication succeeded
    Feb 18 07:06:33 mtcdt daemon.notice pppd[2511]: CHAP authentication succeeded
    Feb 18 07:06:33 mtcdt daemon.debug pppd[2511]: sent [CCP ConfReq id=0x1 <deflate 15> <deflate(old#) 15> <bsd v1 15>]
    Feb 18 07:06:33 mtcdt daemon.debug pppd[2511]: sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
    Feb 18 07:06:33 mtcdt daemon.debug pppd[2511]: rcvd [LCP ProtRej id=0x2 80 fd 01 01 00 0f 1a 04 78 00 18 04 78 00 15 03 2f]
    Feb 18 07:06:33 mtcdt daemon.debug pppd[2511]: Protocol-Reject for ‘Compression Control Protocol’ (0x80fd) received
    Feb 18 07:06:33 mtcdt daemon.info pppd[2511]: Hangup (SIGHUP)
    Feb 18 07:06:33 mtcdt daemon.notice pppd[2511]: Modem hangup
    Feb 18 07:06:33 mtcdt daemon.notice pppd[2511]: Connection terminated.
    Feb 18 07:06:34 mtcdt daemon.info pppd[2511]: Exit.

    #27267
    Jeff Hatch
    Keymaster

    Steve,

    Please open a portal case at https://support.multitech.com. They can help you with this. Usually these types of errors are on the provider or MVNO side. One thing to verify with the Multitech Support people is that the correct version of the firmware is on the modems.

    Jeff

    #27271

    Jeff,

    Will do – Thanks

    Steve

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