Wi-Fi stands for invisible connection, the link that holds you to others without a cord. Losing it in a dream is read as feeling cut off; a strong signal as feeling in tune.
Where in your waking life have you met something like this lately?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.