Troubleshooting DSL-AC88U issues with BT Infinity

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  • #848
    paulinventome
    Participant
    • Posts 2
    • Recruit

    After much deliberation and issues with other setups i decided to go for the all in one 88U. Running BT Business Broadband infinity. Set up ran no problem for a month or so then at the weekend started dropping connection randomly. Would loose the DSL icon and VDSL icon. Sometimes it came by by itself. Sometimes a reboot. 88U connected to BT DSL line and then a combination of wired and wifi, but stripped back to barebones for testing. Ran it for a day recorded 7 or 8 drop outs, no pattern that i could see. BT swear the line is okay.

    So moved the BT Openworld modem back in and connected to it the Ethernet WAN. Got it up and running but the device clicks like crazy also it still dropped connection but not as often. Uploaded the 546 beta firmware and clicking stopped and it’s maintained a connection all night (not enough data to say that it’s okay though)

    How do i trouble shoot this. Obviously i want the 88 connected to the DSL line, not via Ethernet WAN. I have swapped DSL cables too thinking perhaps something happened to the cable.

    I really want to find out what i can look for, there’s lots of settings and whether anyone else has suffered random drop outs with Infinity. (Not GFast, don’t have that here)

    Any advice greatly appreciated!

    #852
    UK Sentinel
    Moderator
    • Posts 3242
    • Skipper

    @paulinventome – that is a little strange as the DSL-AC88U has many issues, but non are really DSL related, usually more wifi/dhcp and memory usage that runs out and causes router to crash and reboot.

    Can you cut and paste a copy of your System Log > DSL Settings/Log page? and Administration > DSL Settings page, just so I can see what going on?

    BTW – what firmware version was you on originally?

    In a completely sane world, madness is the only freedom (J.G.Ballard).

    #869
    paulinventome
    Participant
    • Posts 2
    • Recruit

    Hi, thanks for looking in.

    For the past day or so i’ve been running it with an Ethernet WAN and i’m not seeing the drop outs, i’m seeing a few but i can’t tell whether they are genuine or not (i have left Net Uptime Monitor running on a windows PC but noticed that often it says lost connection when the line is busy, false negative). I cannot find a log on the 88U which would list internet fails? At least not in Ethernet WAN mode.

    The initial firmware was the latest full one from the sites, it came installed with it when i bought it.

    I upgraded to the beta firmware when i had already switched to the Ethernet WAN mode to get rid of the relay clicking.

    I will now revert back to running a DSL connection on the new firmware now that i’m pretty sure the physical line itself is okay.

    I was running a 10m extension DSL cable, i have a shorter one too – and not sure whether cable length makes too much difference but i will run with the shorter to start with just to test the stability

    As soon as i switch over i get both of those settings pages emailed here.

    Glad that in general it should be okay DSL wise… The original issue is definitely DSL disconnects though.

    thanks
    Paul

    #870
    UK Sentinel
    Moderator
    • Posts 3242
    • Skipper

    No problem, as far as I recall, very early firmware’s had issue with ADSL etc, and some minor issues with VDSL, but that was a long time ago,

    Yes, a shortened DSL cable will assist (for testing purposes) and hopefully the shorter cable and newer firmware will at least for DSL, be stable.

    In a completely sane world, madness is the only freedom (J.G.Ballard).

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