odd adsl behavoir has me stumped

Discussion in 'Broadband' started by jas, Aug 19, 2004.

  1. jas

    jas Guest

    i setup adsl for a small office and at first it seemed to work fine - it
    died after a day or so and then came back up semingly on it own.

    sometimes the connection is up and router says should be working but i
    cant resolve dns at all - i can ping out beyond router (sometimes) to an
    ip address but other times it gives network unreachable - it really is
    intermittant and doesnt seem to have a pattern - ive tried fixed
    ip's/dns to rule out dns on router and confirmed correct dns with clara
    the isp and all the router settings, etc

    anyway to cut a long story short so far ive:-

    replaced the speedtouch 510 router with a netgear dg814 - same problems
    replaced the filter, twice - same
    replaced dsl cables - same

    taken all systems of and plugged into router with known working laptop
    and sometimes connection is there and internet is speedy, sometimes not
    at all and still sometimes that odd 'can ping ip address but not an
    internet address or get to the 'web'

    the isp is clara and they dont seem to know whats up either and have
    asked bt to go to replace the card in the exchange as they said one of
    the tests showed a loop back loss of 60 or higher and they said if was
    like that on day of install usually bt would not have let it go through
    - it is likely to be this making it all so intermitant?

    ive setup loads of adsl setups before and usually they either work or
    dont but ive never had one as intermittant as this - at first thought
    was a problem with virus as one of the office laptops turned out to be
    well infested but they are all confirmed clean and patched to date now

    anyway - totally confused about it and wondering if anyone else has seen
    this odd behavoir
     
    jas, Aug 19, 2004
    #1
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  2. jas

    Kráftéé Guest

    Self install or engineer installed?? Either way you appear to be in need of
    an engineering visit, which Clara should arrange not you. Next time it's
    working try to accrss any diagnostic pages your router may have, paying
    particular interest to your SNR
     
    Kráftéé, Aug 19, 2004
    #2
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  3. jas

    jas Guest

    its wires only - the routers dont seem to have much in the way of diag's
    - im taking yet another shiny new one out with me today (linksys wag54g
    - wireless side disabled) just to be seen to be doing something until bt
    have confirmed they've looked at the exchange side of things which
    hopefully will be this morning

    which routers have a good diag on them as I could do with carring one
    around with me for just this sort of problem - ive seen mention of the
    vigor 2600 series having this facility, any others?

    regards

    jas
     
    jas, Aug 19, 2004
    #3
  4. jas

    poster Guest

    The Dabsvalue router I bought ~27 months ago has a diagnostic test
    built in, and a display of connection status (part shown below)

    ADSL Startup Attempts: 1
    Elaspsed Time: 0 days 2 hours 29 minutes 16 seconds
    Downstream Upstream
    SNR Margin 24.8 26.0 dB
    Line Attenuation 34.6 23.0 dB
    Errored Seconds 3 0
    Loss of Signal 0 0
    Loss of Frame 0 0
    CRC Errors 3 0
    Data Rate 2272 288 kbps
    Latency FAST FAST

    The cheapo Ebuyer routers I bought ~15 months ago do have figures
    for SNR etc but only via the Telnet interface, not the web GUI.
    I don't see any diagnostics on the Netgear DG814 sitting here
    and it doesn't seem to offer telnet access (it is here because
    it worked for under 7 days then the ADSL modem failed) but does
    have the dubious addition of a domain blocker :)

    Sometimes cheap offers more useful facilities :) Peter M.
     
    poster, Aug 19, 2004
    #4
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