Sorry I personally cant be of much help ATM as its been so long since ive been using ADSL that I cant remember what figures are normal (or to be expected) in errors , someone who hasn't been away from the scene for 2 years and has poor memory like I have will be along to help soon
- for one ignore the FEC errors as thats normal, they are corrected errors, its the CRC's you need to concern yourself with - this is when the error/data couldnt be corrected and a re-transmit of said corrupted packets is requested
I would take a gamble here and say that those figures dont look too dodgy to me... but as I say ive been off the xDSL scene for years, only recently coming back to it...forgot bits of what i spent years on here learning lol
if your ISP has put you on ADSL2+ then it should be connected at G.992.5 ...which it is ..completely ingore Annex M as you wont get this working as your ISP wont support it, this slows the download down by 2Mb and places that onto the upload spectrum (thereabouts)..but like i say it wont work so dont force it, also dont be repeatedly booting the router as DLM will think there is a fault and start trying to stabilise the line
There is definitely something iffy as your SNR is 8db - default is 6db, so it must detect noise ingress, your upload should be 1.3Mbps but I dunno who your ISP is and how they set their DLM to operate, some like sky set slower uploads to slower downloads speeds on ADSL2+ (or they used to)...but usually anything 16Mb sync and over get the full 1.3Mb on upload..and the SNR would normally be higher...as its low im guessing that it also has noise ingress on its spectrum, thus closing the gap on SNR
I would try a different router, try and get a newer Broadcom (BDCM) based chipset router as that matches your ISPs DSLAM (Vendor ID) - your current router is Broadcom but Thomson Firmware TMMB, I dunno if you'll be locked out of Telnet access...but BCM chipsets are great performers AND allow advanced telnet access
who is your ISP?
I dunno if your router can run Router Stats for 24 hours? then show us the graphs of SNRM/Errors etc etc over time , such as:
CRC's over 38 hour period on graph below - what looks normal (between those blocks) is certainly a few hundred CRC's a day..but everyone is different, it all depends on lots of different things such as set up in the home, possible interference, line quality and much more, if you get a new router that has telnet access then you can pull Quiet Line Noise , SNR and Bit-Loading graphs from that...as well as recording error and line data for 24-48 hours.. once we have said data then one can determine if the amount of errors is about normal for that connection, some people might get a few hundred CRCs per day and not even notice it - however if yours is dropping out then more info would be needed such as the stats i mention, also how often does it drop out? do you have any telephone extension sockets around your home? if so, do you use them and do they have filters on them? can you hear any noise/crackling on the line? (just dial '0' and listen)
- this graph below is someone on PlusNet who suffered those spikes from lightening & thunder storms