Connection issues - ready light flashing - Help!

[garry_boy]

Hi folks,
I've had intermittent connection issues over the last couple of months whereby my connection drops and when I check modem the ready light is flashing. It seems to happen mostly in the early evening (but not exclusively) and I can't determine a pattern in respect of net usage (sometimes it happens when I'm not using it, sometimes when surfing etc).

I'm in the Glasgow area (G73). I've had two engineers out - first one replaced the modem (to the new black one with 256 on the back) when I came home the problem was still there - about an hour later it seemed to resolve itself so I thought fair enough - ran fine for about a week and since then I seem to lose my connection every night for about 2-3 hours usualy between 4 and 9pm.
Second engineer came out today and changed connectors on cable to modem, tidied up the splitters (we have phone, two V+ boxes and one normal box) and increased the signal at the box - but about two hours after he left the same problem returned - ready light flashing.

I've logged into the modem and have pasted the data shown when the connection isnt working (from today about two hours ago) ...have another engineer coming out on Monday evening - but some help in meantime would be appreciated...

Acquire a Downstream Channel 402750000 Hz In Progress
Connectivity State In Progress Not Synchronized
Boot State In Progress Unknown


Downstream Lock : Locked
Downstream Channel Id : 7
Downstream Frequency : 402750000 Hz
Downstream Modulation : QAM256
Downstream Symbol Rate : 5360.537 Ksym/sec
Downstream Interleave Depth : taps32Increment4
Downstream Receive Power Level : -3.1 dBmV
Downstream SNR : 41.0 dB

Upstream Lock : Not Locked
Upstream Channel ID : 1
Upstream Frequency : 25800000 Hz
Upstream Modulation : QPSK
Upstream Symbol Rate : 2560 Ksym/sec
Upstream transmit Power Level : 61.0 dBmV
Upstream Mini-Slot Size : 2

Network Access : Denied
Maximum Downstream Data Rate : 0
Maximum Upstream Data Rate : 0
Maximum Upstream Channel Burst : 0
Maximum Number of CPEs : -1
Modem Capability : Concatenation Enabled, Fragametation Enabled, PHS Enabled

Upstream power is too high, you need that engineer by the looks of things ...

[garry_boy]

Forgot to mention that I copied some stuff from the event log (below) and not sure if it's coincidence but the online light on my second V+ box starts to flash around the same time my net connection goes down.

Here is event log dump:

Event log 31.5.08 approx 18.30
First TimeLast TimePriorityDescription Time Not EstablishedTime Not EstablishedInformation (7)MAP w/initial maintenance region received Time Not EstablishedTime Not EstablishedCritical (3)No Ranging Response received - T3 time-out Time Not EstablishedTime Not EstablishedInformation (7)MAP w/initial maintenance region received Time Not EstablishedTime Not EstablishedCritical (3)No Ranging Response received - T3 time-out Time Not EstablishedTime Not EstablishedInformation (7)MAP w/initial maintenance region received Time Not EstablishedTime Not EstablishedInformation (7)Downstream sync ok Time Not EstablishedTime Not EstablishedInformation (7)Beginning initial ranging... Time Not EstablishedTime Not EstablishedInformation (7)downstream time sync acquired... Time Not EstablishedTime Not EstablishedInformation (7)Downstream sync ok Time Not EstablishedTime Not EstablishedInformation (7)starting ds time sync acquisition... Time Not EstablishedTime Not EstablishedInformation (7)Locked on the downstream. Waiting for UCDs... Time Not EstablishedTime Not EstablishedInformation (7)Downstream lock ok Time Not EstablishedTime Not EstablishedCritical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/Q... Time Not EstablishedTime Not EstablishedCritical (3)SYNC Timing Synchronization failure - Failed to acquire FEC f... Time Not EstablishedTime Not EstablishedCritical (3)Unicast Ranging Received Abort Response - Re- initializing MAC Time Not EstablishedTime Not EstablishedInformation (7)MAP w/initial maintenance region received Time Not EstablishedTime Not EstablishedCritical (3)No Ranging Response received - T3 time-out Time Not EstablishedTime Not EstablishedInformation (7)MAP w/initial maintenance region received Time Not EstablishedTime Not EstablishedCritical (3)No Ranging Response received - T3 time-out Time Not EstablishedTime Not EstablishedInformation (7)MAP w/initial maintenance region received Time Not EstablishedTime Not EstablishedInformation (7)Beginning initial ranging... Time Not EstablishedTime Not EstablishedCritical (3)Unicast Ranging Received Abort Response - Re- initializing MAC Time Not EstablishedTime Not EstablishedInformation (7)MAP w/initial maintenance region received Time Not EstablishedTime Not EstablishedCritical (3)No Ranging Response received - T3 time-out Time Not EstablishedTime Not EstablishedInformation (7)MAP w/initial maintenance region received Time Not EstablishedTime Not EstablishedCritical (3)No Ranging Response received - T3 time-out Time Not EstablishedTime Not EstablishedInformation (7)MAP w/initial maintenance region received Time Not EstablishedTime Not EstablishedInformation (7)Downstream sync ok Time Not EstablishedTime Not EstablishedInformation (7)Beginning initial ranging... Time Not EstablishedTime Not EstablishedInformation (7)downstream time sync acquired... Time Not EstablishedTime Not EstablishedInformation (7)Downstream sync ok Time Not EstablishedTime Not EstablishedInformation (7)starting ds time sync acquisition...

---------- Post added at 21:42 ---------- Previous post was at 21:41 ----------

Originally Posted by homealone

Upstream power is too high, you need that engineer by the looks of things ...

Thanks Homealone, weird, sure the engineer that came today said he had put the signal strength up as it was borderline!

[garry_boy]

bump - any other thoughts on this - have engineer out tonight an would like to have a few ideas to quiz him with!

[moaningmags]

Simply your upstream power level being too high.

[garry_boy]

Originally Posted by moaningmags

Simply your upstream power level being too high.

mentioned that to the engineer, just shook his head and said what we need is an amplifier fitted as signal levels are just 'okay' not great - mainly as we are at opposite end of street from cabinet and have a lot of services ( 2 x V+ boxes, 1 standard and phone). Amplifier getting fitted on Saturday - go figure!

[monkey2468]

Originally Posted by garry_boy

mentioned that to the engineer, just shook his head and said what we need is an amplifier fitted as signal levels are just 'okay' not great - mainly as we are at opposite end of street from cabinet and have a lot of services ( 2 x V+ boxes, 1 standard and phone). Amplifier getting fitted on Saturday - go figure!

It will be a HDU in your home which will stop the losses incurred when the cable is split for your seperate services. Bit like a powered distribution system.