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Carlm81
31-05-2009, 09:58
Hi

I'm on Virgins 20mbit (post code starts with SP2)

The last week I have been having connection issues. The cable modem keeps dropping out and the ready light starts flashing, sync is on the whole time.

Looking at the event log i see this repeatedly :
"No Ranging Response received - T3 time-out"

followed by :
"MAP w/initial maintenance region received"

after a while off that repeating it says :
"ToD request sent- No Response received"

It then goes thru the TFTP stuff and seems to come back to life.

Some times it happens every couple of hours, other times like this morning its happened 3 times in the last 20 minutes.

Modem Status :
Downstream Lock : Locked
Downstream Channel Id : 4
Downstream Frequency : 402750000 Hz
Downstream Modulation : QAM64
Downstream Symbol Rate : 5056.941 Ksym/sec
Downstream Interleave Depth : taps32Increment4
Downstream Receive Power Level : 7.2 dBmV
Downstream SNR : 37.4 dB

Upstream Lock : Locked
Upstream Channel ID : 1
Upstream Frequency : 25800000 Hz
Upstream Modulation : QPSK
Upstream Symbol Rate : 2560 Ksym/sec
Upstream transmit Power Level : 42.0 dBmV
Upstream Mini-Slot Size : 2


Anyone know whats happening, I want to know what to say when I call up, should i be pushing for a new modem or eng visit?

Up until now the connection has been solid for months, only going down when some idiot down the road pulled my cable out of the street cab.
Peter_
31-05-2009, 10:00
Your power levels look fine, what happens to the sync and ready lights when the connection drops and are you using a wireless router.
Carlm81
31-05-2009, 10:02
Sync light stays on the whole time, whilst its happening the modems "Cable Modem Operation Configuration" page says :
Network Access : Denied

So its like the cable connection is fine, i just keep getting kicked off the network.

Ohh the modem is the Blue NTL 250 Branded ones

I am using a wireless router, but the PC i am on is connected via ethernet to it.
Peter_
31-05-2009, 10:03
Sync light stays on the whole time
Ready light?
Carlm81
31-05-2009, 10:07
Yeah the ready light starts flashing when the connection stops
Peter_
31-05-2009, 10:11
Yeah the ready light starts flashing when the connection stops
In that case I would ring up when you lose connection but not reboot so they can see that you have no connection.

You can ring today but tomorrow after 0800 should get you a UK call center.

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Carlm81
31-05-2009, 10:37
Thanks, Ill give it a go.
Trouble being sometimes it comes back in minutes other times its down for while. I will have to get the no on speeddial :)
Peter_
31-05-2009, 10:38
Thanks, Ill give it a go.
Trouble being sometimes it comes back in minutes other times its down for while
Best to call anyway then they can run diagnostics.
die5el
31-05-2009, 12:39
I had the same problem as you a while back Start/Stop 20mbit Very Intermittent i phoned vm told them my problem the sent out an engineer to sort out the problem and found out it was the modem had the modem changed and everything has been fine so far best thing to do is give them a call