I've been having connection issues to DDO and to the forums since 3/11/2011. It spans the gamut of most of the connection issues that I've seen -- from the launcher saying that some of the servers are down (while others are up), to "Searching for logon server" on the loading screen after selecting a server (followed by "Connection failed: Client timed out the connection"), to "The connection to the server has been lost!" after selecting a character while waiting on the loading screen, and so forth. If I do load in, I'm fine as long as I stay in an instance (i.e. staying in Marketplace, staying in Wayward Lobster, staying in a quest, etc.). I also see that the chat channel is unavailable, then re-established, when I log in. However I am able to chat in channels just fine.
I've tried most of the things listed here, such as port forwarding and check if there's a proxy server in IE (there isn't). I don't use fire-sharing apps. I did recently install Skype a week ago, but had been using it and DDO for a week without any problems. I also tried custom-setting the port to 9007 in the preferences ini file (and then port forwarding to that), but that hasn't worked either. I haven't tried a full reinstall of the game yet though but don't know why I'd need to do that.
There's a couple of things that I've noticed about it. One is mentioned above,that I am fine -- can move around, hit stuff, etc. -- as long as I don't switch instances. So something with switching instances can cause connection loss while moving around doing a quest etc. doesn't. Also, it'll say that the chat channel is unavailable/re-established oftentimes when I log in; I don't know if that's a clue (i.e. maybe it uses a different internet protocol such as TCP/IP vs UDP and such and one of them isn't working).
Also, when the problem first started, when I loaded up DDO, Windows would ask me to choose a broadband connection (this also occurs sometimes with other programs such as Windows Media Player before this problem started, so I don't think it's a virus or something), which to me indicates that it's no longer seeing that I'm hooked up directly to the internet. I've since disconnected the broadband options in my network connections setting, as well as disconnected the UPnP thing, to try to force it to use the directly-connected-to-internet option, to no avail.
And of course, the problem isn't limited to just the game, I've also been having problems connecting to the forums as well. It'll take around 5-10 refreshes to get to any one page. I tried running a tracert; if I do so directly to ddo.com, it'll try to connect to ddo.com [74.201.109.9] and will exit my local provider, go to 64.211.195.141, then through gblx.net and then sprintlink.net backbones, before going to pnap.net and then to 74.201.102.xxx until it reaches the destination. If I try to tracert to forums.ddo.com however, it'll try to connect to webvip.ddo.com [74.201.102.43], but then time out after reaching the 64.211.195.141 node successfully (i.e. everything after this will time out). This problem of connecting to websites occurs with no other site that I'm aware of (google.com, yahoo.com, etc.).
Any thoughts?