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Standard User techy01
(newbie) Fri 19-Jan-18 06:49:27
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FTTC goes down every 12-14 days for ~30 mins


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Been having issues with FTTC (Sky Fibre Pro) going down for about 30 mins every 12 - 14 days. When it goes down I find I have dial tone, but router (sky hub black version) keeps training. Orange light will flash forabout 2 secs then go off for 10 secs or so, keeps doing this for about 30 mins, then comes back up although I notice each time I'm losing about 40-50kbps

Stats from today

Broadband Link Downstream Upstream
Connection Speed 79999 kbps 15606 kbps
Line Attenuation 20.2 dB 0.0 dB
Noise Margin 6.6 dB 5.5 dB

Extract from logs

Jan 18 22:09:47 syslog: System time is up to date
Jan 18 22:29:54 syslog: [3945759.990000] Line 0: VDSL2 link down
Jan 18 22:29:56 syslog: Clear IP addresses. IP connection DOWN.
Jan 18 22:31:02 syslog: [3945828.431000] Line 0: xDSL G.994 training
Jan 18 22:31:09 syslog: [3945835.434000] Line 0: VDSL2 link down
Jan 18 22:31:12 syslog: [3945838.437000] Line 0: xDSL G.994 training
Jan 18 22:31:27 syslog: [3945853.440000] Line 0: VDSL G.993 started
Jan 18 22:31:35 syslog: [3945861.453000] Line 0: VDSL2 link down
Jan 18 22:32:39 syslog: [3945925.459000] Line 0: xDSL G.994 training
Jan 18 22:32:42 syslog: [3945928.462000] Line 0: VDSL2 link down
Jan 18 22:32:58 syslog: [3945944.471000] Line 0: xDSL G.994 training
Jan 18 22:33:06 syslog: [3945952.478000] Line 0: VDSL2 link down
Jan 18 22:33:16 syslog: [3945962.484000] Line 0: xDSL G.994 training
Jan 18 22:33:19 syslog: [3945965.489000] Line 0: VDSL2 link down
Jan 18 22:34:34 syslog: [3946040.508000] Line 0: xDSL G.994 training
Jan 18 22:34:38 syslog: [3946044.511000] Line 0: VDSL2 link down
Jan 18 22:34:40 syslog: [3946046.514000] Line 0: xDSL G.994 training
Jan 18 22:34:45 syslog: [3946051.517000] Line 0: VDSL2 link down
Jan 18 22:34:48 syslog: [3946054.520000] Line 0: xDSL G.994 training
Jan 18 22:35:01 syslog: [3946067.523000] Line 0: VDSL2 link down
Jan 18 22:35:02 syslog: [3946068.526000] Line 0: ADSL G.992 started
Jan 18 22:35:04 syslog: [3946070.537000] Line 0: ADSL link down
Jan 18 22:35:06 syslog: [3946071.540000] Line 0: ADSL G.992 started
Jan 18 22:35:09 syslog: [3946074.553000] Line 0: ADSL link down

This continued until

Jan 18 22:57:24 syslog: [3947409.803000] Line 0: ADSL link down
Jan 18 22:57:27 syslog: [3947412.806000] Line 0: ADSL G.992 started
Jan 18 22:57:29 syslog: [3947414.817000] Line 0: ADSL link down
Jan 18 22:57:33 syslog: [3947418.820000] Line 0: xDSL G.994 training
Jan 18 22:57:47 syslog: [3947432.823000] Line 0: VDSL G.993 started
Jan 18 23:00:23 syslog: [3947588.923000] Line 0: VDSL2 link up, Bearer 0, us=15606, ds=79999
Jan 18 23:00:23 syslog: [3947588.929000] Line 0: VDSL2 link up, Bearer 1, us=0, ds=0
Jan 18 23:01:30 syslog: ptm0.1 - WAN link UP.
Jan 18 23:01:30 syslog: Received valid DHCP lease from server. Connection UP.
Jan 18 23:01:30 syslog: Connection Up. SNO/MAC/IP/SWVER: [A530173D012154/1234567890AB/176.xxx.yyy.zzz/2.91.2110.R]
Jan 18 23:32:36 syslog: Lease renewed 3600 ip 176.xxx.yyy.zzz
Jan 18 23:59:18 syslog: Lease renewed 3600 ip 176.xxx.yyy.zzz


Line tests show all clear from Sky, of course they are shut when it fails so can't get them to test in failed condition.

Any one have ideas. Have new NTE5C and tested in test socket with no difference.
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