Hi All,
I upgraded my connection from ADSL2+ to FTTC last November and everything had been running smoothly until the past month.
I happened to be working from home one day in January and noticed that the connection was really slow, buffering Iplayer/Youtube etc. I ran a BT speedtest and noticed that the I.P profile had dropped signifantly from 38717Kbps down to 22617Kbps. The pings had also increased from around 12ms to 30-40ms. DLM had kicked in at this point and remained on the line for 2 weeks.
As I had no idea why DLM was still active on the line I asked my ISP to arrange for a BT Engineer to come and take a look. The BT Engineer came and tested by line with his JDSU and confirmed that the line was able to support 40 Meg Up/10 Meg down . He reset my line and also ran a speedtest at both the cab and the exchange and there were no issues with the tests. He left and asked me to keep an eye on I.P profile which had now been reset back to 38717Kbps. All was running fine until around 4pm later that afternoon when I noticed the connection had dropped and the DSL light was flashing on the Openreach modem. This happened for around 3hours and then everything had gone back to normal. However the next day this happened again and not only had the connection dropped but my I.P profile had dropped as well.
As I had feared the reason for DLM kicking in was because the line was dropping at certain times during the day. I had a second engineer round who did the same tests as the engineer above but also provided a new Openreach modem. He also tested the line with his JDSU and the connection box coming into our property. He said the stats were fine but what he did say is that when he plugged the modem into our mains socket, his colleagues at Openreach noticed errors on the line. He said this could possibly indicate a REIN issue. He said that Openreach would arrange a REIN Engineer.
I contacted my ISP this week and they have informed me that BT have located the issue as being caused by a problem with the 'Access Network'. Does anyone know what they are referring to?
As I can't extract line stats from the Openreach modem I have been using the TBB monitor and ass you can see below, where there is packet loss is when my line drops/slows down.
Could this be a REIN issue or is it possible there is an issue on the port I am connected to at the DSLAM?
Thanks in advance for your help!