追記です。
自SIMに移動しようとしてくれた際のサーバ側のエラーログです。
2015-07-05 10:54:27,848 DEBUG - OpenSim.Region.Framework.Scenes.Scene [SCENE]: Region 8sim told of incoming child agent Shinobar Martinek 3fe3be10-9dca-4377-a157-c9d66b8d6add (circuit code 10706219, IP 121.84.214.25, viewer Firestorm-Release 4.6.7.42398, teleportflags (ViaLocation), position <128, 128, 1.5>. From region JOG meets (5a1bc163-d5d8-4451-ac97-0d4f10d6d944) @ http://jogrid.net:8002/
2015-07-05 10:54:27,929 INFO - OpenSim.Region.Framework.Scenes.Scene [SCENE]: Region 8sim authenticated and authorized incoming child agent Shinobar Martinek 3fe3be10-9dca-4377-a157-c9d66b8d6add (circuit code 10706219)
2015-07-05 10:54:27,929 DEBUG - OpenSim.Region.OptionalModules.Avatar.Voice.FreeSwitchVoice.FreeSwitchVoiceModule [FreeSwitchVoice]: OnRegisterCaps() called with agentID 3fe3be10-9dca-4377-a157-c9d66b8d6add caps OpenSim.Framework.Capabilities.Caps in scene 8sim
2015-07-05 10:54:28,171 DEBUG - OpenSim.Region.Framework.Scenes.Scene [SCENE]: Incoming child agent update for 3fe3be10-9dca-4377-a157-c9d66b8d6add in 8sim
2015-07-05 10:54:48,176 WARN - OpenSim.Region.Framework.Scenes.Scene [SCENE PRESENCE]: Did not find presence with id 3fe3be10-9dca-4377-a157-c9d66b8d6add in 8sim before timeout
2015-07-05 10:54:48,177 INFO - OpenSim.Framework.Servers.HttpServer.BaseHttpServer [LOGHTTP] Slow handling of 6765 PUT /agent/3fe3be10-9dca-4377-a157-c9d66b8d6add/ from 202.26.148.231:60597 took 20138ms
2015-07-05 10:54:48,406 DEBUG - OpenSim.Region.Framework.Scenes.Scene [SCENE]: Incoming child agent update for 3fe3be10-9dca-4377-a157-c9d66b8d6add in 8sim
2015-07-05 10:55:08,412 WARN - OpenSim.Region.Framework.Scenes.Scene [SCENE PRESENCE]: Did not find presence with id 3fe3be10-9dca-4377-a157-c9d66b8d6add in 8sim before timeout
2015-07-05 10:55:08,412 INFO - OpenSim.Framework.Servers.HttpServer.BaseHttpServer [LOGHTTP] Slow handling of 6766 PUT /agent/3fe3be10-9dca-4377-a157-c9d66b8d6add/ from 202.26.148.231:60598 took 20094ms
2015-07-05 10:55:08,452 DEBUG - OpenSim.Server.Handlers.Simulation.AgentHandler [AGENT HANDLER]: >>> DELETE <<< RegionID: 606f2b09-938a-4c49-96ef-2f4eac8b12a0; from: 202.26.148.231; auth_code: a21d4398-b08c-475b-b4de-7b719cae2005
2015-07-05 10:55:08,462 DEBUG - OpenSim.Region.Framework.Scenes.Scene [SCENE]: Called CloseClient() with agent ID 3fe3be10-9dca-4377-a157-c9d66b8d6add but no such presence is in 8sim