Less than 5Mbps on 78Mbps line

[#1]

Hi,
I'm constantly getting < 5Mbps on my new 78Mbps FTTC line.
Everything was working great immediately after the install, but now it's going like a dog.
It's happening at all times of the day.
Raised it with PlusNet support last week, but nothing back yet.
The PlusNet data speed page says:
Phone exchange:
  SALE
Estimated line speed:
  79Mb (Download speed could vary depending on line conditions. Estimates are the maximum speeds that your phone line can support. These speeds are dependent on the package you choose.) - Checked on 2014-02-07 15:18:19
Current line speed:
  5.1 Mb
The BT wholesale checker says:

• Download: 4.41Mbps


• Upload: 12.51Mbps


• Ping latency: 46.75

and when I run further diagnostics, it says:

• IP Profile for line: 77.44Mbps


• Test was not conclusive and further testing required

Please can someone advise?
Thanks.

[#2]

For some reason your current line speed dropped back to its ADSL value.
I've just given that a kick for you now and if you log into your router and disconnect then reconnect your session you should see a improvement
If you're still having issues please let us know

[#3]

Thanks for the quick response.
I can see that the plusnet data transfer page now says 78Mbps against current line speed.
However, things have improved a little when running speed tests, but they are no where near back to the speeds I used to be getting.
I'm now getting a reported 27 to 28Mbps from the speedtest.net and the BT wholesale checker.
Will this gradually creep up again, or is there still a problem?
Thanks.

[#4]

Make sure you are testing the speed with a wired connection (not wireless) - mine varies between 17 and 34 on a wireless connection.

[#5]

Thanks re: wifi, but definitely testing on a wired gigabit LAN.
I'd also tested directly via the master socket with all my local network disconnected.

[#6]

Quote from: amaye

Thanks for the quick response. I can see that the plusnet data transfer page now says 78Mbps against current line speed. However, things have improved a little when running speed tests, but they are no where near back to the speeds I used to be getting. I'm now getting a reported 27 to 28Mbps from the speedtest.net and the BT wholesale checker. Will this gradually creep up again, or is there still a problem? Thanks.

Seems sorted now. Speedtest just reported 65Mbps.
Thanks for the prompt reply. But why can't standard customer service be so fast and helpful as the forums? I raised a ticket last week for this.