Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length

[WWWombat]

I had something similar with ADSL, that is no longer apparent under FTTC. The consensus was for an intermittent HR fault - and the BT test system even showed it once. The main indication was on the upstream SNRM, but I'd sometimes get impacts on the downstream too - at which point, the internet became unusable, and the modem couldn't always hold sync.

More information from this thread, including some graphs from DSLstats.

[ip75]

Thanks WWWombat, your description in that thread sounds pretty similar to what I'm seeing. I think the first step for me to track this down is to connect directly to the master socket, which is inconveniently located in the loft. Normally, the modem is connected via a run of CAT5 from the data extension sockets on the back of the VDSL faceplate - I certainly need to rule this part of the circuit out first.

[burakkucat]

b*cat nods in agreement that you appear to have a latent HR fault in the metallic pathway. 

[Chrysalis]

Its either a HR fault, or dodgy nte5 in my view.

[ip75]

Just noticed today that this has now been amended on the wholesale checker:

                        High Low   High Low      
FTTC Range A (Clean)    80   74    20   20    -- Available
FTTC Range B (Impacted) 80   61.9  20   12.2  -- Available

which looks closer to reality. The HR fault (if that's what it is) is still present, and also reproduces via the test socket - I'll keep an eye on it but at the moment it's not causing a problem.