Hi all,
lately I have been getting disconnects from Steam during games on a regular basis; i.e., I start the game, and during battle, I get a message I got disconnected, and my Steam status is offline.
If you have the same issue, I think I found a workaround yesterday.
My theory is that Steam (probably due to a recent Steam patch) shuts down the connection to its server if there is no traffic going through it for a while.
Because NTW uses its own connection, so it doesn't cause Steam network traffic by itself, this disconnect will happen after some time.
However, the Steam Friend List is updated regularly, causing network traffic; so yesterday I tried to keep it open in the background (shift-tab back to game without closing it).
It worked, I did not get any Steam disconnects anymore.