"Connection to the session has been lost." - Single Player (+desktop crashes)

@CatBaratheon While this error sounds like some sort of networking issue, it tends to happen to people who are having some sort of other issue with the game/their system. It might help us if you could post a dxdiag as explained in the spoilered section of this sticky. 

Did you download all the DLCs? If not, which ones specifically did you install? 

https://hastebin.com/xevarasowi.tex

And I have downloaded all the DLCs, but have been unable to play any of them yet.

@CatBaratheon Is that hastebin link to an empty page or does hastebin just dislike me today? So annoying when that happens. I'll try and take a look again tomorrow, unless someone else happens along who can help 🙂

Edit: OK, so today hastebin is behaving, yay. :P
So, you're on a laptop with an integrated GPU (oh how I hate those things, especially in laptops) along with a dedicated Nvidia GPU (well, a mobile one), that can be an issue for some people, though since you have gotten the game to work it might not be the cause in your case. Although Trespasser does have the tendency to make any graphics issues worse (people who could run the game with integrated GPUs before Trespasser sometimes couldn't after installing it). Might be worth checking Nvidia settings to make sure the game is running off the dedicated GPU, not the integrated Intel one. You might also want to check if your Nvidia drivers need to be updated, they look a little old... or very old if that date is American.

Have you checked to make sure the laptop isn't overheating? Cleaned out any dust? A program like HWMonitor can help you keep an eye on your internal temperatures.

There are some errors for DAI at the end of your dxdiag, though since it very unhelpfully doesn't date these things or anything, I don't know if they're related to your current problem or if they're from a long time ago. 

DA is definitely linked to my Nvidia GPU. Nvidia has also been completely updated now; my GeForce Experience was glitching out and told me it was fully up-to-date when this wasn't the case. Unfortunately, the problem still persists. I already had HWMonitor downloaded, and no considerable changes have occurred.

Prior to reading your reply I reinstalled the game and the DLCs (for the third time) with no change again. I completely respecced my companions, turning all upgrades back to the original pre-DLC states, and there is still no change. It seems the CTD happens when randomly, and the disconnections happen during combat (hence why I thought the upgrades were causing the problem). Sometimes I was able to last 5 minutes or so, but now it's less that 30 seconds.

As for the errors in the dxdiag, I haven't experienced anything prior to this nonsense, so I would have to say these were from this recent problem.

It sounds like your GPU isn't doing well trying to run the game. It might be worth seeing if you do better without Trespasser installed (not ideal, I know, but worth a try). A proper x50 Nvidia card wouldn't be great running this game (with Trespasser), a mobile version is likely going to be even worse, unfortunately. Maybe when my brain is more functional I can be more useful 🤔

Hi @CatBaratheon

First to your GPU. You have a Optimus notebook, that means, in very simple terms, that the Intel GPU and the NVIDIA GPU are working together all the time. 

Upgrading one of this driver alone will probably not be successful to solve a problem. As a matter of fact it is recommanded to use the latest drivers for both GPUs HP is providing for your laptop. > Link

- Download the drivers

- Download Display Driver Uninstaller

- Disable your internet connection.

- Use DDU in save Mode to uninstall both drivers.

- After the reboot, install the Intel driver > reboot.

- Install the NVIDIA Driver > reboot.

If that don't helps, crate a new (Administrator) user profile > reboot > logon to the new profile and test the game.