Hi, I have 30 peers some connected to wifi's which are all connected to the same internet router, others on other LAN's in different places. They have to sync 2GB of files in 30 folders. They all have in some synced folders write access. Since last week everything is very slow; could it be a port problem? if the slow speed would be due to blocked ports, how is it then possible that peers are seeing each other (in the devices tab)? What is a good way to configure the port to use in the preferences tab? Is it relevant for peers using the same port or just not to do that? I also noticed strange behavior: when disconnecting the router to the internet, all peers on the LAN synced immediately, reconnecting the router made the speed go down again to 0,2 Kb/s... Any experience advise is welcome!