Hello every one !

I have been playing M2TW in LAN for quite a time now with and without Hamachi. And now I encounter the following problem :

When I click on the the LAN battle button I have the following message that pops up :

"Failed to connect to LAN"

I does this with the vanilla m2tw and with all the extentions and mods with or without hamachi. And I have not installed a mod since the last time it worked.

Thanks in advance.