Home News Forum Articles
  Welcome back Join CF
You are here You are here: Home | Forum | Requesting Help on Cable Forum

You are currently viewing our boards as a guest which gives you limited access to view most of the discussions, articles and other free features. By joining our Virgin Media community you will have full access to all discussions, be able to view and post threads, communicate privately with other members (PM), respond to polls, upload your own images/photos, and access many other special features. Registration is fast, simple and absolutely free so please join our community today.


Welcome to Cable Forum
Go Back   Cable Forum > Virgin Media Services > Virgin Media Internet Service
Register FAQ Community Calendar

Flaky speeds on 50mb (possibly power level related)
Reply
 
Thread Tools
Old 26-10-2009, 19:57   #1
Failswitch
Guest
 
Posts: n/a
Flaky speeds on 50mb (possibly power level related)

Hey guys,

We had a tech around for the 50mb upgrade a week back but I've noticed varying download speeds. I get erratic speeds from Giganews at times varying from 5.9 MB/s to 1~ MB/s then back to optimum. I'm just testing again with two simultaneous Linux distros on download from the blueyonder FTP site. One download sustains around 2.5 MB/s whilst the other varies from anywhere up to 3.1 MB/s to 500 KB/s.

The new and old modem pages are quite different so I think I'm reading the upload power level at 57 which does seem to be hitting the upper limit, I remember it was around the 39 level with the old Ambit modem. Here are the downstream/upstream shots from the modem page as well as the event log. Any advice is appreciated.





Attached Images
File Type: jpg downstream.jpg (112.7 KB, 40 views)
File Type: jpg upstream.jpg (101.3 KB, 41 views)
File Type: jpg modem log.jpg (153.3 KB, 40 views)
  Reply With Quote
Advertisement
Old 26-10-2009, 20:08   #2
Ignitionnet
Inactive
 
Join Date: Jun 2008
Location: Leeds, West Yorkshire
Age: 45
Posts: 13,996
Ignitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny stars
Ignitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny starsIgnitionnet has a pair of shiny stars
Re: Flaky speeds on 50mb (possibly power level related)

Exactly as you suggested your upstream transmit power is too high and you need an engineer visit to remedy this.

EDIT: There may also be an area fault however, your upstream modulation is QPSK which isn't normal for the 50Mbit service. I hope it's an area fault anyway as it does look rather silly if it's intentional configuration. That said if it were the normal 16QAM you'd not be online at all.

I would imagine it's an area issue and your local network guys should be dealing with it but definitely call in.
Ignitionnet is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 17:43.


Server: osmium.zmnt.uk
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.