Sticky: DC's and how to fix them

There's a few things people who are dcing/lagging constantly can try doing.

1) Turn off all addons (including boss mods) if you're fine then, you know it's one of the addons dcing you, turn them on 1 by 1 until you find out which one it is. If you find something like DBM, or Bigwigs is dcing you, make sure they're up to date, the older versions had a lot of performance issues.

2) Make sure you have combat logs tracking nothing, I'll post a guide how to do it later if I remember, but basically, right click on Combat Log in your chat log > go to settings > uncheck EVERYTHING, make sure you do this for all the filters as well ("Self", "Everything", "Deaths" etc)

3) Try turning the "optimize networks" off/on depending on what it is now.

4) Try resetting your router before raid (turn it off, unplug everything, leave it for 5 mins or so, plug everything back in, and turn it on)

5) Try out different tunneling services, different ones work for different people.

6) Make sure all background programs are turned off (big bandwidth hogs are Steam, uTorrent, windows update), also make sure you have windows update set so that it doesn't download without your permission. People who always dc at a certain time of night, this could be your issue if you have it set to update at that time every day.

A good way to check if there's something hogging your bandwidth is to go to Task Manager > Performance > Resource Manager > Network. The top things should be something like Wow.exe, Ventrilo.exe, svchost.exe, and system. If there's something else above wow or ventrilo, that means it's using up bandwidth.

To turn it off, go to Task Manager > Processes, and search for the program (eg. steam will look like steam.exe) click on it, then click end process.

7) Make sure your firewall settings are allowing wow. (for Norton users, go to Norton > manage Firewall > Program Rules > World of Warcraft Retail, and set it to "Allow"

8) Try doing a disk cleanup/disk optimization.

9) Check when your scheduled updates are scheduled, or turn them off all together

10) Put all settings on low, if this fixes it, you know it's something to do with your computer, not your internet.

If all this fails, it's either going to be your Router, Modem, the cables, your ISP, or someone else using your internet.

If anyone has any other suggestions, leave a reply and I'll add it.