@ Black Sheep,I would request the engineer plug his EXFO/JDSU into the circuit and monitor the error-count. I would ask him to ring the landline number at the same time as monitoring. Also request theyperform a 'Quiet Line test', again, at the same time as monitoring for error-count.
Which type of errors will the engineer be looking for?
Error types appear to change, depending on whether Interleaving is ON or OFF.
Strangely, with all the issues my connection has experienced (& is still experiencing) DLM has recently decided to turn Interleaving OFF.
Whether Interleaving is ON or OFF dictates the type of errors.
e.g. with Interleaving OFF, there is no Forward Error Correction (FEC).
Also with Interleaving OFF, Error Seconds increase (no doubt as errors are no longer forwardly corrected).
(See my attached 8 day graphs that demonstrate this - the SNRM dips are all caused by using the telephone, sometimes resulting in a connection re-sync).
You may get an experienced engineer who has the ability to locate a fault without asking ??
Even in Oldham?
I have to wonder if the pre-visit notes from ISPs are actually sufficiently clear, or whether or not those notes actually get passed to the engineer.
I can sort of understand why "some" engineers decline "some" end users' requests e.g. "While you are here, could you please conduct a TDR test as my connection appears to have an intermittent HR issue & by the way, would you like brown sauce on your bacon butty?"
My engineer's visit is provisionally booked for Saturday morning (awaiting confirmation).
I really hope the intermittent issue(s) I am currently experiencing haven't intermittently bu@@ered off again before then.
@ JoshShep,Good luck for tomorrow's visit.
Is there any pattern emerging that you could mention to the engineer regarding your "intermittent sync and drops in throughput"?
e.g. time of day, heating switched on, use of a hairdryer, an old fridge motor switching on/off, use of the phone, the sky box using the phone line to order a film, sudden or gradual change in prevailing weather conditions/temperatures, next door neighbour is a Radio Ham & when he is transmitting you can see "interference" lines on your TV etc. etc. etc.
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