I am having the same issues as Gossmer..

I only connected 1 time with the Curve 8300 to the N800.. could see an ip address and such.. but could not actually surf.

I am wondering if anyone has had success with pairing a BB Curve with the N800. Is this a firmware issue.. or a device incompatability issue?

Edit:

to add more detail for assistance.. these are all the settings that we could glean from rogers representatives.

ROGERS GPRS settings
For HTML browsing
APN: internet.com
Username: wapuser1
Password: wap
Dial String: *99# OR *99***1# OR *99***2# OR *99***3# OR *99***4# OR *99***5#
Initialization String (required for some but not all phones): +cgdcont=1,"IP","internet.com"
For WAP browsing on phones and other WAP devices:
1. APN: goam.com
2. URL or HomeDeck: http://mymobilehomepage.rogers.com
3. Username: wapuser1
4. Password: wap
5. Wap IP 1: 208.200.067.150
6. Wap Port 1: 9203
7. Wap IP 2: 208.200.067.151
8. Wap Port 2: 9201
See KB05178 for more details about support for the tethered modem.

Rogers sells the BB Curve device with the DUN option as a selling feature.. so i am not sure it is a "problem" on their end.. I am thinking that the N800 may be the issue.

Currently I have tried every setting availiable.

Tools > Connection manager > Connection manager (toolbar at the top) > Tools > connectivity settings > connections > Rogers internet > Edit

GPRS (selected)
click next
Access point name - internet.com
Dial-up number - *99***2# (this one connected 1 time)
user name - wapuser1
Password - wap
click next
click advanced
click "other" tab
Supplementary AT commands: +cgdcont=1,"IP","internet.com" (this doesnt seem to work)

Should there be an "AT" in front of the +cdgcont...??

Tried all 6 possible dial up numbers we have listed above from rogers rep.. with variables of using the optional at command and not..

So in my tests I started without an at command and with the 1st shown dialup number.. try to connect.. fail.. add the at command .. try to connect.. fail. Reset with next dialup and followup with at command.

Only the dialup string of *99***2# every connected and provided an ip address.

Can any of you see where we may have gone wrong? I am feeling like a Tard... any help is appreciated.. as many of you are enjoying tethering goodness.. and some of us are still pulling out our hair.

Thank you.