Access WINBOX Over L2TP

Hi All,

Finally got to the bottom of my L2TP issues,

Can connect to all of my shares, ping hosts etc etc

I can ping my Mikrotik via L2TP through a 3g connection fine, when I try and load winbox to log into it, sometimes it will open and log in but with blank windows. I tried to clear the cache but now when I try and log in its stuck on downloading plugins.

I have tcp port 8219 for winbox open in the input chain for all PPP interfaces, if i disable this I cant log in at all so I know the rule is correct (I think?)

Any one shed any light on this?

Thanks