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Since this would be my first post on the n810, a little background for you.
I received my n810 about a week ago. I had returned the n800 I previously owned. The primary reason for the return was the lack of a built-in keyboard. This made interaction with the device slow and a little on the annoying side. There were a few other perks also. The n810 had a brighter more vibrant screen , a built-in GPS and 2gigs of internal memory. I chose to wait a few months until I had the cash in hand to buy the n810. So far the $150 price difference has been worth it.
Well it’s been a week and I still don’t have it set up exactly the way I want but it is mostly to do with the learning curve involved. Not that I really mind. Though I have to say if you don’t like getting your hands a little dirty, the n800/n810 is not for you. If you do have a little curiosity and a lot of patience, this device transforms into a most invaluable tool in your hands. With regards to the amazing open source community surrounding this impressive little device, of course.
Today, I arrived at a road block. I had paired my n810 to my T-mobile KRZR K1 but when I had finally come around to testing bluetooth I had found I could not gain access to the internet. It had paired seamlessly. No problems at all. Though when I attempted to connect I would get a “connection failed” message. I had deleted the connection with my KRZR and re-paired it several times. No change. Finally I noticed that the n810 was indeed talking to my KRZR. So, it wasn’t a connection problem between the two devices.
After a little searching on the inter web, I found out that my data plan with T-mobile was the problem. Officially, my $5.99 plan was to be only used for phone internet browsing. I have to upgrade to the $19.99 plan to get it to work. This gets you a much faster connection, no port restrictions and your phone can be used as a modem. Now I don’t know if the $5.99 data plan is working as T-mobile intends. Seems pretty ridiculous to me to forcibly limit how a customer uses it considering that there is an advantage to getting the $19.99 package. It does offer a faster connection. I really don’t like to be told how I can use a service that I am paying hard earned cash for. That was after all why I had chosen to pay that extra bit a month. This annoyed the hell out of me.
Thanks to the wonderful community at internettablettalk.com I found a solution. It turned out to be fairly simple. All that needed to be done was to setup the proxy settings manually.
Here’s what needed to be done. Copy and pasted from the link below. Post #6 has the walkthrough.
http://www.internettablettalk.com/forums/showthread.php?p=93176
To set up the tmobile connection, you need to go to Tools/Control Panel/Connectivity, click “connections”, and “new”. Use these settings:
Type: gprs
APN: wap.voicestream.com
Dial up #: *99#
Click “Advanced”
Use Proxy: yes
http proxy: 216.155.165.50
port: 8080
https proxy: 216.155.165.50
port: 8080in “other” tab/Supplemental AT commandsEnter the following:
at+cgdcont=1,”IP”,”wap.voicestream.com”
click ok, then finish
That did it. After I set everything up, it worked like a dream if not a little bit slow but then again, I do have the lesser data plan. No complaints here. 
