I'm having the same problem. I haven't been able to upload my texture pack for the past week. I've tried different browsers and even different machines. What's really strange is that once I attempt to upload, the connection to planetminecraft for my whole house seems to break for several minutes. Even loading the PMC home page from my tablet (where I am not logged into my PMC account) fails. The connection from my phone over cellular (not going through my home network) continues to work the whole time. Then after a few minutes, the site starts working again across all my computers/devices (except upload still fails of course).
imrevned,
What is your computer/network setup?
I am running Linux. I tried uploading on two different machines running different versions of Ubuntu. I tried uploading from both Firefox and Chrome. My tablet and phone are both Motorola Android devices, but I have not tried uploading from those. My internet connection is through Comcast, and I am using a Motorola wireless router. No other websites give me this problem. I was able to upload my texture pack to dropbox with no issue.
