Hi folks,
I have had some problems with my FTTC recently --
http://forum.kitz.co.uk/index.php?topic=14696.0 -- but I thought I managed to track them down to faulty/dodgy power supply connected to Cisco ASA 5505 which was standing next to my modem and causing massive RFI (literally, I switched PS and number of FEC errors went down to ~ 0; after 3 days DLM disabled interleaving on my line and speed went up to ~ 44Mbps attainable and 39.9Mbps sync on 40/10 line).
It was all nice and dandy I was enjoying low latency and great speed 8); in short great performance on my broadband.
This morning I got notification that my line has resynced. Checked everything and noticed massilvey elevated number of FEC errors
, errored seconds and degraded SNRM and SNR levels that *all* started around 1PM on Friday (12 Dec 14)
I wasn't even at home around that time and I'm pretty sure there isn't anything around in my flat that could turn itself on to cause RFI.
Have a look at these; number of FEC errors
Errored seconds; it went down to 0 after I switched the modem off this morning after I noticed the problems (I wanted to get a fresh graph on QLN.)
SNRM
I'm massively puzzled as to what possibly could happen. I tried to feed these stats to A&A ISP support, but they don't really seem like they're to keen on them (what is a bit disappointing).
Does any of you kind kitizens have any suggestions / want to take guesses as to what potentially might have happened? I'm still very fresh in the whole (V)DSL stats world
but given the QLN didn't change, HLog looks okay and it's just SNRM suddenly went down I literally have no idea what could cause this.
Any input much appreciated. Thank you in advance!
Bart
