Multiple problems during last night's live Jam.

[JAMGK]

We are a band that has been using JK for close to 2 years now.
We are scattered across ths U.S. but manage to use JK fairly successfully....
Last night, after the latest JK update, we experienced problems that have and had not occured before.
1. When joining a session a pop-up msg would appear stating,
    Warning.  No audio input signal detected.....
    However,  audio was heard clearly and there appeared to be no problems( has been occuring
    quite often lately)
2.  Occasionally, one of us would be dropped from the JK session (has happened infrequently before).
3.  After about an hour into the session,  the volume on our lead singer would drop drastically but only for me.
    Everyone else could hear him clearly just as before.
    We would log out of JK, reboot our modems and machines and log back in to JK.
    The problem would temporarily disappear but then after 20 or 30 seconds his volume would drop again (again only for me).
Our drummer, from MA and I, in FL, took snapshots of our lead singers (in TX) stats.
The stats from our drummer appeared fine... however the stats that I had showed horrendous Internet Jitter 145.1 ms and Packet Loss 100%, which would explain the          drop in volume.
      i could still hear him but very very faintly.

We were  hoping that there might have been a jK server problem last night that could have been causing some of these problems.....
Otherwise, would anyone have any ideas as to why this (item 3) would all of a sudden start happening?

Re # 1 - just ignore it.  I get the same message but I think it is because my VST's haven't loaded yet, and JK sees this as a loss of audio input.
Re #2 & 3 - Others have reported similar problems, specifically for last night.  JK is a peer to peer system, but it is worth checking that all users have their settings correct - under Manage / Network Settings / Route.  The following should be checked - Prefer Lowest Latency Path, Prefer Split Media Routing, and Prefer Warm Connection.

DANNYDEP:
What is "Split Media Routing"?  What is "Prefer Warm Connection"? Are you saying that all participants of the same session should have these three settings?

Thanks