Cisco ADSL connection problem

Discussion in 'Cisco' started by Jon Bev, May 7, 2007.

  1. Jon Bev

    Jon Bev Guest

    Hi.

    Our main router at one of our site was having problems with dropping
    the ADSL connection on a regular basis so I got onto BT and they ran
    some tests on the line a said that there was some unkown interferance
    on the line causing the connection to drop. Around the time of them
    testing the line the connection totally dropped and has not been
    connected since. BT came to site and and found that there was a "loose
    connection in the master socket" and it was damp too - which must have
    been causing the interferance. They connected their modem and
    everything was working fine.

    We plugged our router back in and nothing! Ive done some investigation
    and run some commands on the router and it seems the router is unable
    to see the ADSL on the line - see below.

    Can anyone make any suggestions of anything to try? Could there be a
    problem with the router now?

    Cheers

    Jon



    #show dsl int atm0
    ATM0
    Alcatel 20190 chipset information
    Line has not yet been activated. No information available.
    DSL: Training log buffer capability is not enabled

    #show int atm0
    ATM0 is initializing, line protocol is down
    Hardware is MPC ATMSAR (with Alcatel ADSL Module)
    MTU 4470 bytes, sub MTU 4470, BW 4608 Kbit, DLY 80 usec,
    reliability 255/255, txload 1/255, rxload 1/255
    Encapsulation ATM, loopback not set
    Encapsulation(s): AAL5 AAL2, PVC mode
    10 maximum active VCs, 1024 VCs per VP, 0 current VCCs
    VC Auto Creation Disabled.
    VC idle disconnect time: 300 seconds
    Last input never, output never, output hang never
    Last clearing of "show interface" counters never
    Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops:
    0
    Queueing strategy: Per VC Queueing
    5 minute input rate 0 bits/sec, 0 packets/sec
    5 minute output rate 0 bits/sec, 0 packets/sec
    0 packets input, 0 bytes, 0 no buffer

    #debug atm events
    000873: *May 7 11:05:34.194 PCTime: DSL(ATM0): Received 1 timer
    events during wait
    000874: *May 7 11:05:36.694 PCTime: DSL(ATM0): Received 2 timer
    events during wait
    000875: *May 7 11:05:39.194 PCTime: DSL(ATM0): Received 3 timer
    events during wait
    000876: *May 7 11:05:41.694 PCTime: DSL(ATM0): Received 4 timer
    events during wait
    000877: *May 7 11:05:44.194 PCTime: DSL: No response from init_AMR-
    R-2.5.042_no_bist.bin
    000878: *May 7 11:05:44.194 PCTime: DSL: Unexpected response 0x0 to
    init_AMR-R-2.5.042_no_bist.bin
    000879: *May 7 11:05:44.194 PCTime: DSL: SM: [DMTDSL_DLOAD_1 ->
    DMTDSL_INIT]
    000880: *May 7 11:05:44.266 PCTime: DSL: SM: [DMTDSL_INIT ->
    DMTDSL_DLOAD_1]
    000881: *May 7 11:05:44.266 PCTime: DSL: Downloading init_AMR-
    R-2.5.042_no_bist.binretry=0, reg=0x1
    retry=1, reg=0x1
    retry=2, reg=0x1
    000882: *May 7 11:05:44.290 PCTime: DSL: Could not send command 0x12
    after 3 retries
    000883: *May 7 11:05:44.290 PCTime: send command fails!!!
    000884: *May 7 11:05:44.290 PCTime: DSL: Could not download init_AMR-
    R-2.5.042_no_bist.bin
     
    Jon Bev, May 7, 2007
    #1
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  2. Jon Bev

    Guest

    Hi John,

    I have seen this 101 times on BT connections. Normally ends up being a
    problem with the line, however, all you can do is the normal checks.
    In no particular order:

    1) Do you get dial tone when plugging an analogue phone in to the
    splitter (micro-filter) following the BT engineers visit
    2) Have you changed the splitter - try at least 1 x other
    3) Have you changed the RJ11 cable - rare to find these are faulty but
    I have had it a couple of times
    4) Ask the carrier to do a whoosh test on the line to double check
    what the BT engineer told you
    5) Try a second router / WIC card in your existing router if you have
    one


    > #show dsl int atm0
    > ATM0
    > Alcatel 20190 chipset information
    > Line has not yet been activated. No information available.
    > DSL: Training log buffer capability is not enabled
    >


    Appears to be no DSL on the line so I would swap the filter and cable
    and try this command again

    > 000882: *May 7 11:05:44.290 PCTime: DSL: Could not send command 0x12
    > after 3 retries
    > 000883: *May 7 11:05:44.290 PCTime: send command fails!!!
    > 000884: *May 7 11:05:44.290 PCTime: DSL: Could not download init_AMR-
    > R-2.5.042_no_bist.bin


    Normally this goes all the way upto 0x26 and then gives you 'showtime'
    assuming all is OK. When you resolve the issue and get a CD light on
    on the router you will see this on the above debug.

    HTH

    Regards

    Darren
     
    , May 7, 2007
    #2
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  3. Jon Bev

    Guest

    On 7 May, 20:57, wrote:
    > Hi John,
    >
    > I have seen this 101 times on BT connections. Normally ends up being a
    > problem with the line, however, all you can do is the normal checks.
    > In no particular order:
    >
    > 1) Do you get dial tone when plugging an analogue phone in to the
    > splitter (micro-filter) following the BT engineers visit
    > 2) Have you changed the splitter - try at least 1 x other
    > 3) Have you changed the RJ11 cable - rare to find these are faulty but
    > I have had it a couple of times
    > 4) Ask the carrier to do a whoosh test on the line to double check
    > what the BT engineer told you
    > 5) Try a second router / WIC card in your existing router if you have
    > one
    >
    > > #show dsl int atm0
    > > ATM0
    > > Alcatel 20190 chipset information
    > > Line has not yet been activated. No information available.
    > > DSL: Training log buffer capability is not enabled

    >
    > Appears to be no DSL on the line so I would swap the filter and cable
    > and try this command again
    >
    > > 000882: *May 7 11:05:44.290 PCTime: DSL: Could not send command 0x12
    > > after 3 retries
    > > 000883: *May 7 11:05:44.290 PCTime: send command fails!!!
    > > 000884: *May 7 11:05:44.290 PCTime: DSL: Could not download init_AMR-
    > > R-2.5.042_no_bist.bin

    >
    > Normally this goes all the way upto 0x26 and then gives you 'showtime'
    > assuming all is OK. When you resolve the issue and get a CD light on
    > on the router you will see this on the above debug.
    >
    > HTH
    >
    > Regards
    >
    > Darren


    I have had some issues with 877 in the UK not
    working on DSL.

    Manually setting the dsl operating mode seemed
    to help as did upgrading the IOS software.

    Cisco have free downloads for patched DSL software
    for 877 if you fancied trying that.

    ftp://ftp.cisco.com/pub/access/800/
     
    , May 8, 2007
    #3
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