If there is no engineer visit you can't be charged!

Yep you can't get charged.

I'm pretty sure you just had a faulty device I would be concerned if they were all like this... A lot of sky boxes have caused similar issues in the past when they were faulty.

Sorry for taking so long to update post. Since sending Roku device back all issues have vanished as quick as they appeared router uptime is over 90 hours wan uptime i mean.
Connection speed my usual for my line and no hissing or weird noises on line.

I canceled BT engineer like i said there was no charge.

One thing, them Roku streaming devices get good reviews overall on almost all online shops that sell them.
Maybe i got a faulty one and there usually safe.

Blackmesa8

You got a duff device, (or power supply). I have had a Roku for over 4 months and it is brilliant. HD, 5.1 sound, and a standby power consumption that is negligible, (certainly less than 5W).

Try another.