ISSUE: Unable to use Trading Post at all
Make sure your firewall is allowing the awesonium.exe (yes, that is the name of the file) process through. The Black Lion Trading Company uses a completely separate file from the main GW2 game to run, and it frequently gets blocked by anti-virus/firewall software.
Its not my firewall or AV. Neither of these are logging anything against the process EXE you listed in the log files, which indicates it is not being blocked.
Trading Post is now working after logging out and waiting 30 mins. How long till it breaks again though?
My app doesn’t have a problem using the same TP api as the game, seems like it maybe a client-side issue.
Have you tried doing a data file repair?
https://guildwars2.zendesk.com/entries/28148006-Repairing-the-Game-Client
I’ll give that a go if it happens again. Has been OK now for the past hour or so.