Cable Forum - View Single Post

Ignitionnet · 26-04-2009, 10:41

All the power levels are fine, the T3 / T4 timeouts are not. T3 usually indicates upstream issues, T4 tends to indicate downstream but could also be caused by the same upstream issues causing the T3s. That the upstream speed is so rubbish also goes along with this, suggests problems on the upstream network which need to be attended to by Virgin.

Turkey - regardless of ex-ntl or ex-Telewest received power levels are the same tolerance, it's the same modem that has to decode the signal. MERs are fine on all downstreams.

Also just FYI the OP is ex-ntl, 298.75MHz etc are IRC offset frequency plan which is ex-ntl. Telewest use HRC, 299MHz etc. Upstream can be pretty much anything in a range of 6.6 - 63.8MHz depending on network and noise, and won't be an exact Hz number on modems that report it properly, which some don't they just go to 1 decimal place

Hope that helps.

26-04-2009, 10:41	#8
Ignitionnet Inactive Join Date: Jun 2008 Location: Leeds, West Yorkshire Age: 47 Posts: 13,995	Re: stats seem ok for 50mbit ? All the power levels are fine, the T3 / T4 timeouts are not. T3 usually indicates upstream issues, T4 tends to indicate downstream but could also be caused by the same upstream issues causing the T3s. That the upstream speed is so rubbish also goes along with this, suggests problems on the upstream network which need to be attended to by Virgin. Turkey - regardless of ex-ntl or ex-Telewest received power levels are the same tolerance, it's the same modem that has to decode the signal. MERs are fine on all downstreams. Also just FYI the OP is ex-ntl, 298.75MHz etc are IRC offset frequency plan which is ex-ntl. Telewest use HRC, 299MHz etc. Upstream can be pretty much anything in a range of 6.6 - 63.8MHz depending on network and noise, and won't be an exact Hz number on modems that report it properly, which some don't they just go to 1 decimal place Hope that helps.