So - I've had an ongoing problem since December.
My connection normally moves along at ~40-45Mb/s down. Work's pretty well. Every so often, I will suddenly lose speed to sub-10Mb/s. Restarting the DSL connection on the HG633 (normally) clears it right up and it goes back up. It'll last anywhere from a month to 5 minutes and speed will drop again.
Around mid-January - I implemented a speed monitoring tool to run a speed test every hour (which I moved to every 3 hours last week when the connection had looked stable for long enough).
Below is the graph of the speed test.
Now - here's the challenge. When the problem was occuring in January - I rang TT ... went through the usual checks and got booked for a BrightSparks engineer visit. Earliest appointment was 3 weeks later ... but then I had to travel for work on the day of the appointment ... so move it - 3 further weeks on (earliest available!). Low and behold, 7 days before the visit, the connection has been stable for 2 weeks and I've nothing to show the engineer, so I cancel.
Again - the connection remains stable for a while then goes haywire for about 24 hours, then back to stable until the last 2 days when even restarting the DSL connection seems to be a very temporary resolution.
There's no noise I can hear on the line (even when the speed is going up and down).
I was originally wondering if it was a problem related to the wind (fraying on a cable maybe/bad joint?), but it's been reasonably calm here today (and we've had windier days with no issues). It might be related to the cold, but we made it through the snow in late Feb with no issues.
So now I'm at a loss as to how to proceed. I could re-call, re-book a BrightSparks visit (and wait 3 more weeks), but if he turns up and the line is stable - what am I supposed to do? I'm 90% certain the issue isn't internal to the house as nothing's changed beyond a cable change (see below). There's 10% of me that's wondering if it's the router itself.
I'm attaching the speedtest results (the 4-5Mb increase in late Feb was a replacement of some cables to see if that helped) so you can see. I'm generally considering little dips to 30Mb/s as 'stable' because that could simply be a video stream running at the same time as the test. It's where the down speed goes sub-20Mb/s that I worry.
![speedtest.jpg speedtest.jpg]()
Thoughts? Ideas? Options as to how to proceed?