Fibre Pro Unlimited Dropouts and Speed Drops.

[vfx]

Or the fault is still there but has been lowered to a safe rate that isn't tripping it up...

[Isitme]

I don't know how relevant it is but you seem to have a very large number of Collisions on the WAN port(101). I sometimes get collisions on my LAN port, but never on the WAN. I wonder if this is effecting the speed?

[kuplion]

I don't know how relevant it is but you seem to have a very large number of Collisions on the WAN port(101). I sometimes get collisions on my LAN port, but never on the WAN. I wonder if this is effecting the speed?

You know, I noticed the same thing. I've actually only ever ever ever had collisions on the WAN since upgrading to Fibre.

I've sourced a HG612 (3B) and am going to give that a go in PPPoE mode when it arrives, as I've heard good things about it (especially compared to the SR102). Will update as I get more info from SKY/Openreach.

EDIT: Haha, I've just checked the SR102 and it's back to full speed..

Broadband Link	Downstream	Upstream
Connection Speed	79987 kbps	20000 kbps
Line Attenuation	13.9 dB	0.0 dB
Noise Margin	6.4 dB	9.9 dB

Port	Status	TxPkts	RxPkts	Collision Pkts	Tx b/s	Rx b/s	Up Time
WAN	MER	79401519	88367907	38	8285604	41491236	09:38:30
LAN	Up	88372491	79659013	80866	41753864	7759712	09:39:29
WLAN	Disable	0	0	0	0	0	00:00:00

Still getting the collisions though. I'll monitor it.

[Isitme]

Your WAN collisions have gone down but your LAN collisions look exceptionally high. As a comparison I have 15 collisions on my LAN, 7 attached devices, with an uptime of 24 hours. Power cut yesterday.

[kuplion]

Yup, the collisions have only ever been present since switching to Fibre so something must have changed somewhere in the SR102 config. Once the HG612 is here and I can confirm it's better for my connection, I'll be switching routers too (either an RT-AC88U or something pfSense based and use my current WDR3600s as Access Points still).

[kuplion]

Ok, so I had more line crashes this morning which pulled the speed right back down after going back to 80/20 when my SR102 firmware updated a day ago, so I've added in my HG612 (Unlocked GUI) whilst it was messing about as it wouldn't make a real difference being down for an extra 5 minutes.

The line stats on the HG612 are:

	Downstream	Upstream	Downstream	Upstream
Line rate (kbit/s)	78141	20000	0	0
CRC errors	0	0	0	0
FEC errors	2079	0	0	0
HEC errors	168	0	0	0

And:

	Downstream	Upstream
Attainable rate (kbit/s)	78136	25999
SNR margin (dB)	6.3	9.6
Line attenuation (dB)	13.8	0
Output power (dBmV)	14.3	6.2

The FEC and HEC errors were there almost as soon as it connected and have been increasing slowly over the last 15-20 minutes.

Thoughts?

EDIT: This is only a few minutes later.. :

Downstream	Upstream	Downstream	Upstream
Line rate (kbit/s)	78141	20000	0	0
CRC errors	0	0	0	0
FEC errors	6833	15	0	0
HEC errors	27493	0	0	0

	Downstream	Upstream
Attainable rate (kbit/s)	76240	25888
SNR margin (dB)	5.8	9.5
Line attenuation (dB)	13.8	0
Output power (dBmV)	14.2	6.2

EDIT 2:

Stats using DSLStats:

Stats recorded 15 Mar 2016 15:20:08

DSLAM/MSAN type:            IFTN:0xd086 / v0xd086
Modem/router firmware:      AnnexA version - A2pv6C038m.d24j
DSL mode:                   VDSL2 Profile 17a
Status:                     Showtime
Uptime:                     57 min 7 sec
Resyncs:                    0 (since 15 Mar 2016 15:13:34)
            
                Downstream    Upstream
Line attenuation (dB):      13.8        0.0
Signal attenuation (dB):    Not monitored        
Connection speed (kbps):    78141        20000
SNR margin (dB):            6.1        9.5
Power (dBm):                14.3        6.2
Interleave depth:           1        1
INP:                        0        0
G.INP:                      Not enabled        Not enabled


RSCorr/RS (%):              N/A        0.0129
RSUnCorr/RS (%):            N/A        0.0000
ES/hour:                    112        838

[gorebrush]

Collisions generally occur if you have half duplex on one side and full duplex on the other, but I'd have thought modern non-enterprise gear wouldn't have this problem, and I can't recall being able to set these kinds of settings on the Sky hubs.

[kuplion]

I did check whether that was causing the collisions but everything is set to full duplex and you're right, the SR102 seems to lack the options anyway.

[kuplion]

The fault is still present. The drops have started again and SKY have confirmed an external fault again.

[marjohn56]

Have you thought about moving?