I've been using this dongle for about 9 months now, and have been pretty happy with it so far. This morning though, I tried to send a text message (my price plan includes 80 a month) for the first time. I access the browser-based control panel, go to text messages, compose and send a message, then after about 30 seconds it says, "Failed sending text message." I also tried with my iPod, but just got the same message. I've tried sending messages to two different numbers, and tried both the +44... and 07... versions of the number.

I've been searching for a solution to this problem for well over an hour, but I can't find any information. There has never a problem receiving messages with the E585. I did have an older USB dongle with Three, and that was fine for sending messages, but I've given it away now, so can't just swap SIMs.

If anyone out there knows what's going wrong, please let me know how to fix this! My technical knowledge is pretty limited and I'm probably just being a dope...