Recently I have been having some issues with TM, and I don't know if it's my wifi, TM, my Time Capsule or Lion, but I decided to put it here, because I've only noticed it since I upgraded to Lion. Over the past few weeks I've been adding some big files to my computer, and TM backups have been between 1 to 2 GB. Sometimes while TM is backing up, I manually put my computer to sleep for a little bit, and when I wake it up, it appears to be backing up again, but nothing is actually happening. Also my wifi shows no bars and my network is not selected, and when I try to select it, nothing happens. When I try to turn wifi on or off it either takes a couple of minutes or I just get no response. After a couple of minutes, I either stop the backup, or it tells me it couldn't connect, and my wifi comes back. From what I remember from SL, this never happened, and I'm sure over the year or so of using it, I must have manually put my computer to sleep many times and have no recollection of this ever happening. Any clue what's going on, or is this just another Lion bug?