For using the WLAN network in the TU Berlin, IP guest access numbers will be provided to you. You will receive the login and password with your congress ticket. To access the WLAN network, you will need to install a so-called "VPN-client", which can be downloaded at the first login.
Since the WLAN network of TU Berlin is not designed for parallel connection with high data transmission of several thousand users, there will be PC pools available, too. In these PC pools, you can also connect your own laptop to the internet.