Dear Readers,
Just a quick update.
I was informed yesterday that my port has now been "flexed" & my profile reset.
Plusnet's test results from yesterday:-GEA:
Test Outcome Pass
Test Outcome Code GTC_FTTC_SERVICE_0000
Description GEA service test completed and no fault found .
Main Fault Location OK
Sync Status In Sync
Downstream Speed 23.987001 Mbps
Upstream Speed 1.9970001 Mbps
Appointment Required N
Fault Report Advised N
Profile Name 16.2M-32.4M Downstream, Interleaving Off - 0.5M-2M Upstream, Interleaving Off
Time Stamp 2011-08-31T05:45:0
Summary: DLM reset complete. Line profile allowing sync up to 32.4Mbps. Need to allow time for speed to pick up.
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I have asked Alex at Plusnet to confirm why my profile had not been reset to "20M-40M Downstream, Interleaving Off - 0.5M-2M Upstream, Interleaving Off" as promised, & that it was before any of the issues started.
I await a response.
I have also requested my connection statistics from when FTTC was installed, to compare with the latest JDSU readings.
Again, I await a response.
I was advised to allow up to 120 hours for DLM to stabilise & hopefully allow the higher speeds again.
There is very little change to my download speeds as of this morning:-
I still have the theory that DLM and/or DSLAM/Exchange port(s) may be may be confused, faulty, or "stuck" due to all the previous line instabilities (now possibly cured), requiring a port switch / Lift & Shift.
This apparently only takes a few minutes at the cabinet & a few minutes back at the exchange & as a belt & braces matter, another few minutes to check the results using a JDSU at my home.
Indeed, all-in-all probably a bit quicker & cheaper than unnecessarily swapping modems.
I have no idea why this has not been tried at this time.
Only when "everything" physically possible has been tried, in effect taking my connection back to the equivalent of a brand new installation will I/we have the full picture of what has caused/is still causing the low speed issues.
22 Mb download speeds aren't that bad in general, but they are really poor for a FTTC connection, especially one that was downloading at some 10-11 Mb quicker for the first couple of weeks.
I will be patient for a few more days, even if just to disprove the theory that DLM will eventually get its act together, & then (but hopefully not) the saga will continue, making this epic forum thread even more epic in the scale of epicness.
Paul.