From: CR Moyer
argh well i'm out of ideas then

Just a suggestion... every instance is different and I know this helped me.
Have you opened your bandwidth all the way in PREFERENCES / NETWORK on each instance you have running?
I found that I can now run 5 computers at once in SL simply by doing that AND making sure all the ports and ip addresses that SL use are placed into both my firewalls and router.
I started having problems with voice chat (V 1.18.xxx) and since adding all the ports used (not till v 1.19.xxx) I have found that not only did the audio start working and remain stable so did many other things in SL thus allowing me to stay in world....( I now hasten to advise that voice chat in V1.20.1 and 2 now turn themselves on at will without any help from me. I now run without the mic at all... sheesh)
I sympathise only too well with those who are continually being kicked out of SL.. the last few versions are simply shit,, no other word for it,, and just to advise you, it has been discussed in other areas of SL support (and there are far too many because I doubt that much is actually viewed by those who can (not will) do something about our respective plights)) Linden Labs should be making those who write the SL programmes, test them for a long period of time then pay on performance only.
I along with many others have both said and agree with the above statement because then and only then would we have the stability we are paying and longing for.
Just as there is no legislating aginst stupidity there is also no dodging slovenly scripting and testing if paid for before success.
I along with so many are tired of the constant band aid mentality that seems to exist therefore, why not fix what we have and use the knowledge from the then stable versions to update any future releases?
My appologies should this sounds a little over simplified. Just trying to appear logical is all.
If its not broken, it doesnt need fixing does it?
I'll now go sit in my corner and hope I have been of some help,, no matter how little..