Decreased speed

[glen]

When adsl2+ was activated on my line last monday I was syncing at 10.5 mbps, although my download speed was about 7.5-8.
It is now syncing at 6.6, but my download speed is about 2.8 mbps and seems to be dropping.
Pings are far better now at around 40, where as on max they were always over 100 -200, but then again my download speed on
max was around 7mbps, so I'm hoping things will improve over the next few weeks and get some decent speeds back again.

[Ray]

Can you post your router stats, Glen.

[Sebby]

Yep, we'll need to see the stats.

[glen]

Hope this is what you need.

AR7 DSL Modem Statistics:
--------------------------------
[DSL Modem Stats]
   US Connection Rate:   988   DS Connection Rate:   6652
   DS Line Attenuation:   39   DS Margin:      14
   US Line Attenuation:   21   US Margin:      5
   US Payload :      29680992   DS Payload:      228875472
   US Superframe Cnt :   4386393   DS Superframe Cnt:   4386393
   US Transmit Power :   0   DS Transmit Power:   0
   LOS errors:      0   SEF errors:      0
   Errored Seconds:   826   Severely Err Secs:   0
   Frame mode:      0   Max Frame mode:      0
   Trained Path:      1   US Peak Cell Rate:   2330
   Trained Mode:      16   Selected Mode:      16
   ATUC Vendor Code:   4946544E   ATUC Revision:   2
   Hybrid Selected:   1   Trellis:      1
   Showtime Count:      1   DS Max Attainable Bit Rate: 11524 kbps
   BitSwap:      1   US Max Attainable Bit Rate: 988000 bps
   Annex:          AnxA   psd_mask_qualifier: 0x0000
   Power Management Status: L0   DS HLINSC: 0
   US ACTPSD:       -345   DS ACTPSD: -366
   Total init. errors:    1   Total init. timeouts: 0
   Showtime init. errors:    0   Showtime init. timeouts: 0
   Last showtime init. errors: 1   Last showtime init. timeouts: 0
   ATUC ghsVid:  b5 00 49 46 54 4e 71 b9
   T1413Vid: 00 00      T1413Rev: 00      VendorRev: 00
   ATUR ghsVid:  b5 00 54 53 54 43 00 00
   T1413Vid: 00 00   T1413Rev: 00   VendorRev: 00

   [Upstream (TX) Interleave path]
   CRC:    0   FEC:    0   NCD:    0
   LCD:    0   HEC:    0

   [Downstream (RX) Interleave path]
   CRC:    1075   FEC:    703089   NCD:    0
   LCD:    0   HEC:    0

   [Upstream (TX) Fast path]
   CRC:    0   FEC:    0   NCD:    0
   LCD:    0   HEC:    0

   [Downstream (RX) Fast path]
   CRC:    0   FEC:    0   NCD:    0
   LCD:    0   HEC:    0

[ATM Stats]
   [Upstream/TX]
   Good Cell Cnt:   618354
   Idle Cell Cnt:   173297069

   Tx Packets Dropped Count:   0
   Tx Bad Packets Count:   0

   [Downstream/RX)]
   Good Cell Cnt:   4768239
   Idle Cell Cnt:   1165130877
   Bad Hec Cell Cnt:   6438
   Overflow Dropped Cell Cnt:   0
   Rx Packets Dropped Count:   0
   Rx Bad Packets Count:   0


[SAR AAL5 Stats]
   Tx PDU's:   127503
   Rx PDU's:   190184
   Tx Total Bytes:   23470703
   Rx Total Bytes:   223376367
   Tx Total Error Counts:   0
   Rx Total Error Counts:   15


[OAM Stats]
   Near End F5 Loop Back Count:   0
   Near End F4 Loop Back Count:   0
   Far End F5 Loop Back Count:   0
   Far End F4 Loop Back Count:   0
   SAR OAM Ping Response Drop Count=0

[Sebby]

It looks like the exchange has increased your target SNRM in response to instability, the objective being to stabilise the line by way of forcing it to sync lower. ADSL2+ is more susceptible to noise as it uses double the frequencies of ADSL2, and so this is probably why you didn't have problems in the past. It's also an AR7-based router, which probably isn't the best - routers with a Broadcom chipset seem to be the best, though this is something we can address later.

Could you tell us a bit about your setup? Are you connected to an extension socket? Have you ever removed rings wires or anything like that to try and improve the line?

[glen]

Thanks for your reply Sebby. I'm connected directy to the test socket and there are no other sockets in the house. I spoke to someone from Idnet earlier and he said the line should stabalize and the speed will improve. He also said the connection looked good and the resyncs will stop, it's just the training period apparently. I also found out that the electric went off while I was out so the router would have resynced again, causing another drop in speed, I would imagine. Yer man from Idnet seemed to know he's stuff so I'll leave it their capable hands, and get myself a beer and forget all about it. Cheers

[Sebby]

The whole training period thing is a bit misunderstood, I think. ADSL2/2+ is rate adaptive so the line will adjust whether in or out of the training period. My feeling is that things won't just return to how they were. Anyway, see how you go and get back to us if you need any further help.