Everytime uTorrent release a new version, you will be prompted for an update during every startup. However it says that:
Can’t download language files…
Could not connect to uTorrent update servers, try again later.
Well I think it’s all your anti-virus softwares fault.
To overcome this you have to pause the protection for while, so that the firewall will disarm for a while enough for you to update the uTorrent… and it works for me, did it work for you?