How to check if you are affected:
1. Run a BT speed test at http://www.speedtester.bt.com/ in the information it gives will be your IP Profile.
2. Go to https://portal.plus.net/my.html?action=stable_rate and look to see what your current line speed is.
3. This depends upon whether you are on 20CN or 21CN. If you are on 20CN the BT speed test will have reported on the download only, on 21CN it reports on both download and upload.
21CN: The current line speed should match the IP Profile rounded down to the nearest 100.
20CN: See the table on this page to see how it should be set.
If your current line speed stays below the value it should be for more than 24 hours you need to contact Plusnet to have it corrected manually.
NB If you know you are on 21CN you can calculate your IP Profile which will be 88.2% of your sync speed.
Plusnet user since November 2001