Les channels DAHDI qui disparaissent sans raison apparente

Bonjour,

Je viens vers vous car j'ai un PB assez étonant

suite à changement de release d'ASTERISK de 1.4 ----> 18.4.2 réinstallation complete
le site disposant d'une B410p et d'une TDM2400

les releases
dahdi version 2.5.02
libpri version 1.4.12
Asterisk 1.8.4.2

Chose bizzar l' installation fonctionne correctement pendant qque jours sans souci et
le client m'appelle et me signale plus aucun poste ne peut sortir sur l'exterieur

me connectant sur son PBX
je verifie dans cli
dahdi show status tout est OK
dahdi show channels plus de canaux visible

pourquoi??

Voici les fichiers de conf

chan_dahdi.conf
;
; DAHDI telephony interface
;
; Configuration file
;
; You need to restart Asterisk to re-configure the DAHDI channels
; CLI> reload chan_dahdi.so

[trunkgroups]

[channels]
language = fr
context=default
switchtype=national
;signalling=fxo_ls
rxwink=300 ; Atlas seems to use long (250ms) winks
usecallerid=yes
;
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
canpark=yes
cancallforward=yes
callreturn=yes
echocancelwhenbridged=yes
;
rxgain=0.0
txgain=0.0
group=1
;
callgroup=1
pickupgroup=1

immediate=no
;
#include dahdi-channels.conf

dahdi-channels.conf
; Autogenerated by /usr/sbin/dahdi_genconf on Fri Mar 2 14:06:28 2012
; If you edit this file and execute /usr/sbin/dahdi_genconf again,
; your manual changes will be LOST.
; Dahdi Channels Configurations (chan_dahdi.conf)
;
; This is not intended to be a complete chan_dahdi.conf. Rather, it is intended
; to be #include-d by /etc/chan_dahdi.conf that will include the global settings
;

; Span 1: B4/0/1 "B4XXP (PCI) Card 0 Span 1" RED
group=0,11
context=Isdn_Entrant
switchtype = euroisdn
signalling = bri_cpe_ptmp
channel => 1-2
context = default
group = 63

; Span 2: B4/0/2 "B4XXP (PCI) Card 0 Span 2" AMI/CCS RED
group=0,12
context=Isdn_Entrant
switchtype = euroisdn
signalling = bri_cpe_ptmp
channel => 4-5
context = default
group = 63

; Span 3: B4/0/3 "B4XXP (PCI) Card 0 Span 3" AMI/CCS RED
group=0,13
context=Isdn_Entrant
switchtype = euroisdn
signalling = bri_cpe_ptmp
channel => 7-8
context = default
group = 63

; Span 4: B4/0/4 "B4XXP (PCI) Card 0 Span 4" AMI/CCS RED
group=0,14
context=Isdn_Entrant
switchtype = euroisdn
signalling = bri_cpe_ptmp
channel => 10-11
context = default
group = 63

; Span 5: WCTDM/0 "Wildcard TDM2400P Board 1"
;;; line="13 WCTDM/0/0 FXOKS"
signalling=fxo_ks
callerid="Fax 4154" <4154>
mailbox=4154
group=1
context=P_interne
channel => 13
callerid=
mailbox=
group=1
context=default

;;; line="14 WCTDM/0/1 FXOKS"
signalling=fxo_ks
callerid="Fax 4176" <4176>
mailbox=4014
group=1
context=P_interne
channel => 14
callerid=
mailbox=
group=1
context=default

;;; line="15 WCTDM/0/2 FXOKS"
signalling=fxo_ks
callerid="Fax 4177" <4177>
mailbox=
group=1
context=P_interne
channel => 15
callerid=
mailbox=
group=1
context=default

;;; line="16 WCTDM/0/3 FXOKS"
signalling=fxo_ks
callerid="Analogique" <4199>
mailbox=4199
group=1
context=P_interne
channel => 16
callerid=
mailbox=
group=
context=default

;;; line="17 WCTDM/0/4 FXOKS"
signalling=fxo_ks
callerid="Analogique" <4169>
mailbox=4169
group=1
context=P_interne
channel => 17
callerid=
mailbox=
group=
context=default

;;; line="18 WCTDM/0/5 FXOKS"
signalling=fxo_ks
callerid="Analogique" <4198>
mailbox=4198
group=1
context=P_interne
channel => 18
callerid=
mailbox=
group=
context=default

;;; line="19 WCTDM/0/6 FXOKS"
signalling=fxo_ks
callerid="Analogique" <4170>
mailbox=4170
group=1
context=P_interne
channel => 19
callerid=
mailbox=
group=
context=default

;;; line="20 WCTDM/0/7 FXOKS"
signalling=fxo_ks
callerid="Sonnerie Generale" <4180>
mailbox=4180
group=1
context=P_interne
channel => 20
callerid=
mailbox=
group=
context=default

;;; line="21 WCTDM/0/8 FXOKS"
signalling=fxo_ks
callerid="Channel 21" <4021>
mailbox=4021
group=5
context=from-internal
channel => 21
callerid=
mailbox=
group=
context=default

;;; line="22 WCTDM/0/9 FXOKS"
signalling=fxo_ks
callerid="Channel 22" <4022>
mailbox=4022
group=5
context=from-internal
channel => 22
callerid=
mailbox=
group=
context=default

;;; line="23 WCTDM/0/10 FXOKS"
signalling=fxo_ks
callerid="Channel 23" <4023>
mailbox=4023
group=5
context=from-internal
channel => 23
callerid=
mailbox=
group=
context=default

;;; line="24 WCTDM/0/11 FXOKS"
signalling=fxo_ks
callerid="Channel 24" <4024>
mailbox=4024
group=5
context=from-internal
channel => 24
callerid=
mailbox=
group=
context=default

;;; line="25 WCTDM/0/12 FXOKS"
signalling=fxo_ks
callerid="Channel 25" <4025>
mailbox=4025
group=5
context=from-internal
channel => 25
callerid=
mailbox=
group=
context=default

;;; line="26 WCTDM/0/13 FXOKS"
signalling=fxo_ks
callerid="Channel 26" <4026>
mailbox=4026
group=5
context=from-internal
channel => 26
callerid=
mailbox=
group=
context=default

;;; line="27 WCTDM/0/14 FXOKS"
signalling=fxo_ks
callerid="Channel 27" <4027>
mailbox=4027
group=5
context=from-internal
channel => 27
callerid=
mailbox=
group=
context=default

;;; line="28 WCTDM/0/15 FXOKS"
signalling=fxo_ks
callerid="Channel 28" <4028>
mailbox=4028
group=5
context=from-internal
channel => 28
callerid=
mailbox=
group=
context=default

Pour l'instant je n'ai pas d'idée d'ou cela peut provenir :gratgrat:

si qqu'un en a une je suis preneur.

Yves