HI, I am also suffering frequent drop outs. I've done the online broadband test, but this simply says there are no issues, which I disagree with.
Please can someone contact me to check,
Can you run this checker and post back a screen shot of the results. Make sure you delete your phone number before posting.
Can you use this speed tester then carry out the further diagnostics and post back a screen shot of all the results including your IP profile for up and down. This test must be done with a wired connection.
http://speedtest.btwholesale.com/if you have a Homehub 5 can you also post the stats from 1-12 by logging onto the homehub management pages then troubleshooting > helpdesk. http://bthomehub.home/
Have you tried the quiet line test dial 17070 option 2 you should hear no noise if you can hear noise then it needs reporting to BT faults on 151 with no mention of broadband in the call
This is only a user forum.
Is your landline phone quiet when you make and receive phone calls?