Infinity issue

Hi all,

Looking for some help with my infinity connection, I got it installed in september when my cab was ready and has been solid ever since but since a few weeks ago it dropped out 2 nights in a row at the same time, Then it went onto every few days at round about the same time.

Then today it seemed to drop for 1 hour and a half during the day I was at work so cannot confirm only way I know is a gap from event log to uptime sitting at 10 minutes when I checked. I already spoke to bt about this issue and I got them to call me today and they said at there end they cannot see any drop in connection today when clearly there was (13:25:04, 02 Jul. 5G WiFi UP....
11:44:01, 02 Jul. Device Disconnected)

I have done a quiet line test and from what I can hear its silent. I am thinking it could be noise from somewhere...

Also my speed has taken a hit from 71 down to 56 but BT say its sitting at 61 (my estimate) here are my current line stats

3. Firmware version: v0.07.03.0814-BT (Type B) Last updated 16/11/2014
4. Board version: 01
5. VDSL uptime: 0 days, 09:03:06
6. Data Rate: 12574 / 56632
7. Maximum Data Rate: 15396 / 71720
8. Noise Margin: 5.8 / 5.8
9. Line Attenuation: 0.0 / 20.3
10. Signal Attenuation: 0.0 / 0.0

Thanks for any input