high latency when entering dungeons
With the game closed please try moving or deleting your WTF, CACHE, and INTERFACE folders out of your World of Warcraft directory. These are temporary cache files that will be recreated by the game the next time you launch. Moving them to the desktop makes it easy to replace them if necessary.
Please also note these folders contain your video/sound settings and UI addons. By moving or deleting these folders you will also remove any saved preferences, or UI addons you may have added. However, in order for us to troubleshoot the issue we need to remove any modifications to the game and make sure we are diagnosing the default settings.
NOTE: Please also make sure to remove any and all addon auto-installers or auto-updaters you may have, as those can automatically reinstall addons for you, possibly causing further issues.
Account and Technical Services
Feel free to rate my services at the following link: http://www.surveymk.com/s/T8S7BX2
Something about how the game communicates and/or how it is read by traffic shapers changes when you enter instances/raids I assume as the result of the jump to an instances server.
Only way to fix it is to continue bugging blizzard about the issue until they get off their high horse and fix it and/or attempt to get your ISP to make a special exemption for WoW in their traffic shapers. (which may take some time if they have to wait for an update from their hardware companies)
Please report any Code of Conduct violations, including:
Threats of violence. We take these seriously and will alert the proper authorities.
Posts containing personal information about other players. This includes physical addresses, e-mail addresses, phone numbers, and inappropriate photos and/or videos.
Harassing or discriminatory language. This will not be tolerated.