DSL Line dropping, need cable pull for ATM interface to come alive

Hi all,

We've recently changed our WAN to use ADSL and SDSL circuits rather
than a combination of leased lines and ISDN dialup systems.

All seems well apart form one circuit where the installed Cisco 828
keeps falling over. There are intermittent problems on the circuit and
the router simply stops responding until the SDSL cable is physically
pulled. About 30 seconds after the cable is reconnected the router
connects and all is well again.

It would appear that even though the circuit is ready it requires a
cable pull or router restart to get the device going again.

If left the router will recover but only after a 5 minute period. When
debugging the router without any connections present the following
messages are sent every 5 mins:

*Mar 1 01:20:16.171: (Func: startup_timer_event, Line: 683) startup
timer expired. 300000
*Mar 1 01:20:16.171: %GSHDSL-6-ACTIVATION: Interface ATM0, the line is
still not activated.
*Mar 1 01:20:16.191: (Func: gshdsl_softreset, Line: 153) soft reset
over

Clearly there is a periodic timer for reactivating the ATM interface.
Does anyone know how to change the period on this timer or have ideas
as to how to recover from temporary circuit outages?

Never had any such problems when using ISDN or leased line
technologies!

Many thanks,

Dave

Config as below:

Router#show start
Using 2106 out of 131072 bytes
!
version 12.3
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
logging buffered 100000 debugging
no logging console
no logging monitor
enable secret *
!
username Router password *
no aaa new-model
ip subnet-zero
ip dhcp excluded-address 10.1.0.1 10.1.254.254
!
ip dhcp pool CLIENT
import all
network 10.1.0.0 255.255.0.0
default-router 10.1.0.1
lease 0 2
!
ip dhcp pool CLINET
!
!
!
!
interface Ethernet0
* Ethernet Interface 10.1.0.1 255.255.0.0
ip address 10.1.0.1 255.255.0.0
ip tcp adjust-mss 1452
hold-queue 100 out
!
interface ATM0
no ip address
atm vc-per-vp 64
atm ilmi-keepalive 30
dsl equipment-type CPE
dsl operating-mode GSHDSL symmetric annex B
dsl linerate AUTO
hold-queue 224 in
pvc 0/38
encapsulation aal5mux ppp dialer
dialer pool-member 1
!
!
interface Dialer1
ip address negotiated
ip mtu 1492
encapsulation ppp
ip tcp adjust-mss 1452
dialer pool 1
dialer remote-name redback
dialer-group 1
ppp authentication chap pap callin
ppp chap hostname *
ppp chap password *
ppp pap sent-username * password *
ppp ipcp dns request
ppp ipcp wins request
hold-queue 224 in
!
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer1
ip http server
!
logging 10.1.1.120
dialer-list 1 protocol ip permit
snmp-server enable traps snmp authentication linkdown linkup coldstart
warmstart
snmp-server enable traps tty
!
line con 0
exec-timeout 120 0
transport preferred all
transport output all
stopbits 1
line vty 0 4
exec-timeout 120 0
login local
length 0
transport preferred all
transport input all
transport output all
!
scheduler max-task-time 5000
!
end

Router#

.