Client not patching error [30413] [10009] [10019]

[Kiat]

I have this problem every single update. My download speed starts high them drops to 0 and this error pops up.
After spending a good few hours to a day of retrying to update its sometimes works. I can only download a small amount each time before this error pops.
It made me quit the game last year and I've only just come back.......still getting this error!
~ I can only suggest keep trying to update until it eventually does, maybe off peak times will work best?

Update: So I've sat here clicking update. xxxxMB / xxxxMB Downloading. When the download stops I click cancel and try again since this seems to be when the mps drops and causes the error.
I'm getting it updated bit by bit, just very time consuming and very annoying.