VPN only works occasionally/not reliable

[Flapjack]

I've had this issue pretty much since I started using WM devices.

I'm on the AT&T network (HSDPA), but barely can connect to either my work, or home VPN servers. Usually, after setting up the phone and VPN connection for the first time, it will work. But after that, it'll take roughly 10 tries to get it to connect again. Even when it's connected, the connection will drop (w/o notification) within a few minutes.

VPN is important to me, since I often have to remote into home or work PCs to fix problems. I can usually get a RDP window up and running when I finally do get the VPN connection to establish, but I never have enough time to actually do anything... it dies so quickly.

I've been on the phone with AT&T numerous times on the issue. They've given me ISP.CINGULAR access, as well as a static IP for an extra $3 a month. It doesn't help, though.

Any suggestions?

**EDIT**
I did try searching for this, but didn't find anything helpful. I was limited to searching on each page, as "VPN" is too short a term to search for using the search function....

[quarlow]

I had some issues with my internet connection, after the WM 6 update. When I updated my Radio Version the problem went away. You may need to update your ROM/Radio. Depending on which device you have, there may be many choices for you to do this.

[Flapjack]

I had some issues with my internet connection, after the WM 6 update. When I updated my Radio Version the problem went away. You may need to update your ROM/Radio. Depending on which device you have, there may be many choices for you to do this.
I've tried more radios than I can shake a stick at. My IP is also not static, though AT&T is charging me $3 a month for that. Punks.

Which radio are you using now?

[Flapjack]

I'm bringing this thread back up, because I absolutely cannot figure out why VPN is so darn spotty.

On my current ROM (RomeOS 3.1), I can't even get VPN to connect at all. On the ROM I was using prior (Q-Mobile 1.2), it would show connected, but I couldn't get a RDP connection to an internal IP address. Within a minute or so, the VPN connection would just disappear.

This problem goes from ROM to ROM, so I'm wondering if something is wrong with my account at AT&T. Can anyone here use VPN reliably?? If so, what did you do to get there? It certainly does not work out of the box... I really need this for work.