No, sorry. I guess that is what comes from your compulsive "fiddling".
Or could PlusNet be having problems?
I'm impressed with your FTTC downstream throughput. It is less than the upper reaches of a good ADSL2+ connection!
If my connection had maintained its original excellent throughput levels & stability I would have no need to "fiddle" or mess about with monitoring it/producing graphs would I?
I was a bit concerned about the high error counts so I asked Alex at Plusnet for his thoughts, epecially bearing in mind that it
WAS the high error count that convinced one engineer that the lift & shift was necessary a while ago & also convinced Plusnet that the latest engineer's visit was necessary.
This was the response:-
"Your connection has been stable for 8 days solidly at 27.9Mbps. As such this line does not warrant any further investigation. Especially because the line is operating above the speed that BT deem within limits. Please let me know if there is anything further I can do for you?"
By yesterday the DS CRC error count had reached 500273 in 217 hours.
I compared that against another user's connection with a similar D-side length of 950m.
His DS CRC error count over 470 hours was ZERO.
I thought my error count was worthy of some investigation.
Each of these engineers' visits has produced an improvement in stability, & a slight speed improvement.
As the version B HG612 modems are currently being replaced in some sort of a phased BT replacement plan, that was the only thing I had left to try.
As my version 2B modem was indeed supplied by BT, it seemed wise to actually use it.
I was intending to keep it in its original locked condition, but unlocked it so that I could actually continue to monitor my connection.
I have never really experienced contention issues since I have had a FTTC connection, but last night's throughput was up & down all night. (Speed tests were as low as 5 Mb via various speed testers at one point).
I tested speeds again at around 6:30 this morning, when I considered it reasonable to discount potential contention issues:-
The results were still only around 19 Mb DS.
I tried the BT performance test again - FAIL!
I rebooted the modem & tried the BT performance test again - FAIL! again (see attached screenshot).
I tried to move on to the further BT tests a few times but couldn't achieve a connection direct to BT this time.
This disconnecting from & reconnecting to Plusnet's servers moved me to a different IP address.
DS sync went up, & a little later the modem re-synced "on the fly". DS sync speed is now up again at 29527 K, & speeds appear a
little more "reasonable" again:-
So, yes. Maybe Plusnet were having some problems?
They have just increased capacity for their 21CN connections, so maybe it was out of balance on the gateway that I was connected to?
All last night I was unable determine which gateway I was connected to via Plusnet's gateway checker.
Now I can see that I'm connected to "the gateway known as ptn-ag03.
This is located in Telehouse North."
I'll see how I now get on with the error counts over a prolonged period, but I really didn't think that 1/2 million DS CRC errors in a 217 hour period should
NOT warrant some investigation.
I'm also inclined to agree with one of Walter's comments that I'll probably only ever see my higher sustained speeds again if BT "accidentally" fix whatever it is that is currently causing them to be restricted. (Unless of course my connection's DS speed has been capped somewhere).
I still can't get a straight answer to that one, but Plusnet's limited report from yesterday states that I am currently on a 15 Mb - 30 Mb profile:-
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 27.9 Mbps
Upstream Speed 5.7 Mbps
Appointment Required N
Fault Report Advised N
Profile Name 15M-30M Downstream, Interleaving Low - 3.6M-7.2M Upstream, Interleaving Off
Time Stamp NA
RADIUS: 8 Days, 17:44:23 (on going)
Summary: NFF
A long time ago it was a 20 Mb - 40 Mb profile!
Paul.
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