WotLK This is the most irritating thing!

[Chablo]

Every time i play and i'm mounted on my flying mount i skip back to a few feet behind me about three times and then stuck in place for about 5 seconds. It happens every ten seconds.
It is seriously the most annoying thing. Someone please explain this!

[skullatbash]

you are triggering anti-hack system, which is caused by a bad internet connection in your case

[Chablo]

damn. my ms is pretty high. but it's ultra sensitive lately! it normally did this every few hours now its every couple seconds.

[Derpykins]

Considering that this only happens during peak hours and that when it happens, there are tons of people on global complaining about it, I'd have to say that it's server lag causing it.

[Shandris]

The issue is caused by:
You was dead and logged out. When you login back you will be alive but when you move the server teleport you back at start spot.
What you need to do is just logout again when you are alive.

This happens on mop realm but for wotlk I am not sure.