FTTC Stable since September, suddenly line speed and throughput dropped 20%

[#1]

Headline says it all really, I have had 80/20 service since Sept. 2019, (40/10 prior to that) achieving 48-52 Mbps download IP Profile on BT line test diagnostics until last week when IP Profile dropped to  43 Mbps. with corresponding 20% reduction in my actual throughput figures, both up and down. Now getting only 35.45 download and 10.86 upload on BT test and similar on ThinkBroadband tester.

Have also noticed occasional "web site not found" and similar browser errors that go away on retry, which is why I checked current speeds.

Minimum guaranteed speed when I signed up was 36.4 Mbps download.

I have reported this a s speed fault by phone, but told not to expect a speedy resolution as engineers are still restricted by the Covid-19 business.

Any ideas how long such things take to get sorted nowadays?

If it was a complete failure, would fix be any quicker?

Thanks,

[#2]

Hi @Axotol,

Sorry for any inconvenience this is causing. Together with our network partners at Openreach we are prioritising customers who don’t have a phone line or broadband connection, meaning there might be a delay in Speed Faults being fixed. In the meantime, please raise your speed fault online at faults.plus.net.

[#3]

Thanks, it was the likely length of the delay I was looking for. Are we talking days, weeks, Months?

Problem is already reported by phone. He did a line test and said it detected a fault, but no engineer visit called for. Then I got an email asking for another BT speedtest, saying an engineer visit would be necessary. All very confusing.

I'll just wait and see unless it gets worse.