PPP connection breaks up immediately

2 thoughts on “PPP connection breaks up immediately

  1. Hi,

    I am using Gl-868 Dual modem.I want to establish PPP connection.This is my sequence:

     

    AT+CGDCONT=1,”IP”,”APN”,”IP ADRESS”,0,0   (here,APN and IP address are provided )

    ATD*99***1#

     

    The ouput is:

    CONNECT

    ~ÿ}#À!}!}!} }8}”}&} } } } }#}$À#}%}&Td}%} }’}”}(}”ûÌ~~ÿ}#À!}!}!} }8}”}&} } } } }#}$À#}%}&Ih}%} }’}”}(}”Äœ~~ÿ}#À!}!}!} }8}”}&} } } } }#}$À#}%}&Hl}%} }’}”}(}”}-r~~ÿ}#À!}!}!} }8}”}&} } } } }#}$À#}%}&Gp}%} }’}”}(}”ìÇ~~ÿ}#À!}!}!} }8}”}&} } } } }#}$À#}%}&Gt}%} }’}”}(}”š¨~~ÿ}#À!}!}!} }8}”}&} } } } }#}$À#}%}&Ox}%} }’}”}(}”¼4~~ÿ}#À!}!}!} }8}”}&} } } } }#}$À#}%}&N|}%} }’}”}(}”uÚ~~ÿ}#À!}!}!} }8}”}&} } } } }#}$À#}%}&M€}%} }’}”}(}”nv~~ÿ}#À!}!}!} }8}”}&} } } } }#}$À#}%}&^„}%} }’}”}(}”°È~~ÿ}#À!}!}!} }8}”}&} } } } }#}$À#}%}&]ˆ}%} }’}”}(}”úó~~ÿ}#À!}%}!} }*} } } } } } }*ø~~ÿ}#À!}%}!} }*} } } } } } }*ø~~ÿ}#À!}%}!} }*} } } } } } }*ø~

    NO CARRIER

     

    The way I know it,the connection should not break immediately.So,my problem is  the “NO CARRIER” that follows after this.Is it a common thing or am I doing it wrong?

    1. Is your host participating to the PPP negociation? Check the flow control on the serial line, if you are not using one set AT&K0 but would not be wise.