I have Timemachine backing up to a WD myCloud and it has been running fine for a month or so. For some reason the backup on my macbook pro has become painfully slow and erratic whereas my imac is backing up to the same drive just fine. The backup on the macbook as gone from trying to backup 30 or 40 mbs as per usual to over 8gb for no apparent reason (no new software installed) and it gets as far as 38kb and goes back to 1kb. I stopped it and restarted it and it eventually seemed to start working again and after 4 hours got to 3gb and stuck. i restarted it and it has started all over again and is stuck on 4kb. This is bonkers. I have checked there are no corrupt files in the trash (it's completely empty now) and nothing is running but nada. has anyone else seen this behaviour? I don't think it's the myCloud because the imac's Timemachine is running fine.