Our service consistently returned 3-4-5 mbps of usable speed for most of our time with Zen - but for the last 2 or 3 months has struggled to reach 1 mbps at most times.
During peak periods (evening) it hovers around 250-500 kbps..........rendering it terminally frustrating for anything but the most basic web-browsing.
Nothing has changed regarding our set-up domestically that I can fathom.
The PC is functioning as efficiently as ever and regularly virus checked, defragged and kept uncluttered and monitored for performance issues.
I have run regular daily speed tests (from a variety of sources) as well as various diagnostic apps that indicate nothing untoward.
Our mobile devices return similar low speed figures so am tempted to rule out a PC issue?
Very occasionally the speed test will return a useful speed of upwards of 3-4mbps which while not blistering, is acceptable for streaming, downloading and all the things we expect to be able to do - so suspect the WiFi router is still functioning appropriately?
Would it be worth hunting out an ethernet cable to check it further?
The router stat home-page returns a sync speed capability of 6-7 Mbps (I do not fully understand the noise margin figures however)
The Zen line data page (Bras Profile) gives the same (with the occasional short-lived dip)
BT's line checker gives a POTENTIAL speed for the line in the 2.5 to 5 mbps range but their speed test pretty much echoes the others (ie - 0.3mpbs or thereabouts at peak times)
Ping is good.
Upload is as expected.
These figures appear identical to how they appeared when our throughput was satisfactory over the years.
But for 90 percent of the time even the lowest quality streaming buffers constantly and some image heavy web-pages now don't even load or just timeout.
We are approx 1 copper wire mile from the local exchange.
It is my understanding that (most) ISPs will immediately blame BT who then in turn blame the customers hardware or pass the buck back to the ISP in a never ending circle. So can anything EVER be done? And if so.....where to begin?
I am reasonably computer savvy but the intricacies of how the internet works out in the wild are beyond me!!
One thing I HAVE noticed however is that the slower speeds have coincided with the completion of a big new housing estate locally and the main road-which presumably carries the copper - is undergoing major roadworks. But BT report no known line faults for our address.
Should I raise the issue with ZEN? Would they be able to pin-point or rule out any anomalies?
Thanks for bearing with me on this one.
Edited by Ron_Trousers (Mon 04-Nov-13 00:07:11)