I am logging in, just to be booted off within minutes

[Alwin Alcott]

give some information about your system and connection... now we only can guess what's going on...

 

go to help in your viewer menu and copy/paste your system info in your original post ( log in and choose edit)

[Alwin Alcott]

give some information about your system and connection... now we only can guess what's going on...

 

go to help in your viewer menu and copy/paste your system info in your original post ( log in and choose edit)

[Rolig Loon]

Open your Statistics Bar (CTRL + Shift + 1) and look at the numbers for Ping Sim and Packet Loss. 

Ping Sim is a measure of how long it takes for signals to travel either way between your viewer and the SL servers.  SL is very finicky about having low Ping Sim values, becaue it's important to keep the servers and your viewer in sync all the time.  If the value gets higher than 150 ms, you'll start to see lag (rubber banding,sluggish movement ...).  The higher it is, the worse the problem will be, until the system is so far out of sync that it disconnects.  This is a common problem for SL residents who live far from Linden Lab servers in North America, or who rely on satellite Internet.

Packet Loss is a measure of how much data is lost during transmission. Ideally, it should be as near to zero as possible. A fraction of a percent is tolerable, but higher loss can mean that your viewer won't have all the imformation it needs to function.

Watch those values over a period of time.  They may be steady and acceptable for a while but spike at times.  It's at those times that you are most likely to fail.