I get these 90002 dc's sometimes constantly (every 5 to 10 minutes), making instances like dungeons impossible for me, and sometimes I don't get them for an hour or so.

For the record, I have already done everything that has been recommended such as:

Open the IE browser, open the "Tools", go to "Internet Options" and adjust the following settings:
- Under the "General" tab, please delete ALL browser history.
- Under the "Security" tab, please move the slider to the lowest possible settings or no higher than "Medium"
- Under the "Privacy" tab, click “Advanced” and select ‘Accept’ under both First Party and Third Party Cookies.
- Under the "Advanced" tab, please make sure that "Allow software to run or install even if signature is invalid" is CHECKED.
- Make sure that all SSL and TLS (EXCEPT SSL 3.0) are CHECKED. [SSL 3.0 should be UNCHECKED]
- Hit "Apply" to save the settings, and then "OK, to close the Internet Options menu.

and..

Port Forwarding the following ports:
TCP: 54992-54994
55006-55007
55021-55040

So, now that is out of the way. I see that ALOT of people wrestle with this and it seems these fixes don't always help others either. I have confirmed that is it not the connection on my end. I have a very good modem/router, strong internet connection when this is happening, and no other programs running in the background.

Is there anyway to do something about this? Because for the sub I am paying this is making gameplay intolerable. Help pls?