On installing the router, it wouldn't settle - was getting continuous DSL drops for about 3hrs. Putting the Zyxel back immediately stabilised the line. After a day or so, I put the Fritz back in and it dropped a couple of times, then stabilised. However, it was synching at about 35Mb/s. Since then, about 12 days ago, the DSL line has dropped once or twice each day, each time re-synching at a slightly lower speed. It's now settled at 32.4Mb/s, quite a bit down on what's been achievable prior, acknowledging the change to Fibre 1.
At the same time, the downstream SNR has increased from about 7/8dB to 11/12dB. I'm seeing occasional periods where a number of unrecoverable errors are detected on the line - not large numbers, the maximum was about 200 in an hour. Mostly, it's zero.
I've tried changing the line settings on the Fritzbox to favour stability, but that had little apparent effect so all of them are set to favour performance. Line stats, below:
Max. DSLAM throughput kbit/s 32400 10000
Min. DSLAM throughput kbit/s 128 128
Attainable throughput kbit/s 42259 9378
Current throughput kbit/s 32398 9378
Seamless rate adaptation off off
Latency fast fast
Impulse Noise Protection (INP) 43 0
G.INP on off
Signal-to-noise ratio dB 11 5
Bitswap on on
Line attenuation dB 23 37
G.Vector off off
Carrier record A43 A43
Seconds With Not Remediable Errors (CRC)
Errors (ES) Many
Errors (SES) per
FRITZ!Box 41 13 0.13 7
Central exchange 487 2 0.76 21
Before I awitch back to Zyxel, possbly resetting something, is there anything else I should try to speed things up? Would Zen be able to do anything to restore the lost capacity?
Edited by Pablo_Pablovski (Thu 14-Sep-17 19:31:36)