Disconnecting when entering ceratin zones/areas

Hi everyone,
i have a DC issue that happens randomly and i don't understand what causes it.

It happens when i move into different zones/areas.

For instance the last time it happened was just now when i tried to cross the bridge from durotar to northern barrens.
When i try to log back in again it disconnects me again instantly.
The only temporary solution i found is the un-stuck character option on the website but i got tired of un-stucking my character over and over again.

If anyone has a solution for this issue, please let me know.

Thanks in advance, Dima.

Downloading a full client fixed it for me.

Hey orki0, do you have a working link for a full client?
Ive been looking for a while now and cant find one.