Stuttering/Freezing When Zoning

[WOWBOX40]

Sadly this wasnt the case.

When i play on 1 computer alone, running around and switching zones, they need around 3-5 secs, then they are ready to move like normal again.

All 5man and 10 man pcs work flawlessly on their own.
Its only when all of them are going to load in / switch zones at the very same time, that it takes 1-2 mins to fully load all up, ready to move.

This is very strange.

Wonder if it can have something to do with the internet connection, as some toons can slightly "lag" behind while on follow.

I did a internet speedtest and its normal. Router has a fan on it and isnt too warm. Latest firmware.

/thinks hard