Invalid Authorization for Trading Post?
Live Response QA
Hi. There are many factors that can cause problems with the Trading Post and/or Gem Store. In order to diagnose your specific problem, we’ll need you to submit a customer support ticket, please. Also, please include any relevant information, such as your operating system, your PC specs, and firewall info.
We’re sorry that you’re experiencing this issue and hope we can help you.
Before you submit your ticket, you can try clearing your cache. To do this, you will want to close GW2 and:
1. Click the Windows start button.
2. Search for temp
3. Find any gw2cache folders and delete them.
Relaunch the game.
I hope this fixes it for you, but if it doesn’t, please follow my initial instructions.