iPhone iOS 6 not charging anymore

Hi,

since the update to iOS 6 my iPhone is no longer charging on PC USB-Ports (at work) or an car USB-Adapters. I did perfectly for about 1 year on all those ports with the same cables.

I allready went to my provider and got a new iPhone 4s ... same is happening after update to iOS 6. There was iOS 5 installed and charging on PC USB and car USB worked!!!

There are many similar entries here and allaround the net.

Apple please fix this SOON!!!

PS: Charging works with my Macbook USB ports.

Thanks