EDIT: here is the trace file, maybe it can be helpful. I see bad logs here and there.....
TRACE LEVEL = 1000
NetComm.cpp 7639: NetComm checking command line: "-trace=1000"
game.cpp 622: Entered Game::Enter()
osman.cpp 480: Entered OSMan::Enter()
setup.cpp 1088: Could not find PORSCHE_904GTS.AUD
setup.cpp 1088: Could not find FORD_FSPRINT_MOD.CAS
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find NSU_TT.HDC
setup.cpp 1088: Could not find NSU_TT.CAS
setup.cpp 1088: Could not find NSUSOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
setup.cpp 1088: Could not find TOYOTA_COROLLA.HDC
setup.cpp 1088: Could not find TOYOTA_COROLLA.CAS
setup.cpp 1088: Could not find ALFAGTASOUNDS.AUD
vidman.cpp 1044: Entered VidMan::Enter()
specialfx.cp 3138: Entered SpecialFX::Enter()
dynman.cpp 632: Entered DynMan::Enter()
plrfile.cpp 3334: Entered PlayerFile::Enter()
PlayerGarage 394: USERDATA\cipollo\garage.gar is an illegal garage file
sound.cpp 725: Entered Sound::Enter()
hwinput.cpp 6369: Entered HWInput::Enter()
onscreen.cpp 2941: Entered OnScreen::Enter()
game.cpp 717: Entered Game:

etup()
hwinput.cpp 6383: Entered HWInput:

etup()
options.cpp 1561: Entered Options:

etup()
PlayerGarage 394: USERDATA\cipollo\garage.gar is an illegal garage file
plrfile.cpp 2510: Attempting to save to USERDATA\cipollo\cipollo.TMP
plrfile.cpp 2533: Retcode: 0 for renaming to USERDATA\cipollo\cipollo.PLR
PlayerGarage 394: USERDATA\cipollo\garage.gar is an illegal garage file
PlayerGarage 394: USERDATA\cipollo\garage.gar is an illegal garage file
plrfile.cpp 2510: Attempting to save to USERDATA\cipollo\cipollo.TMP
plrfile.cpp 2533: Retcode: 0 for renaming to USERDATA\cipollo\cipollo.PLR
PlayerGarage 394: USERDATA\cipollo\garage.gar is an illegal garage file
plrfile.cpp 2510: Attempting to save to USERDATA\cipollo\cipollo.TMP
plrfile.cpp 2533: Retcode: 0 for renaming to USERDATA\cipollo\cipollo.PLR
PlayerGarage 394: USERDATA\cipollo\garage.gar is an illegal garage file
PlayerGarage 394: USERDATA\cipollo\garage.gar is an illegal garage file
plrfile.cpp 2510: Attempting to save to USERDATA\cipollo\cipollo.TMP
plrfile.cpp 2533: Retcode: 0 for renaming to USERDATA\cipollo\cipollo.PLR
PlayerGarage 394: USERDATA\mr2cc\garage.gar is an illegal garage file
PlayerGarage 394: USERDATA\cipollo\garage.gar is an illegal garage file
plrfile.cpp 2510: Attempting to save to USERDATA\cipollo\cipollo.TMP
plrfile.cpp 2533: Retcode: 0 for renaming to USERDATA\cipollo\cipollo.PLR
PlayerGarage 394: USERDATA\mr2cc\garage.gar is an illegal garage file
O_AppGz.cpp 30681: Join Session was successful, setting local session description:
O_AppGz.cpp 30682: ** Session Name: AGIUS SERVIDORES
O_AppGz.cpp 30683: ** Scene Base: NANDERSTORP
O_AppGz.cpp 30684: ** AI Opp: 0
O_AppGz.cpp 30685: ** Human Opp: 0
O_AppGz.cpp 30686: ** Max Players: 37
specialfx.cp 3144: Entered SpecialFX:

etup()
steward.cpp 4585: Entered Steward:

etup()
dynman.cpp 644: Entered DynMan:

etup()
sound.cpp 748: Entered Sound:

etup()
onscreen.cpp 2947: Entered OnScreen:

etup()
vidman.cpp 1184: Entered VidMan:

etup()
plrfile.cpp 3344: Entered PlayerFile:

etup()
plrfile.cpp 2510: Attempting to save to USERDATA\mr2cc\mr2cc.TMP
plrfile.cpp 2533: Retcode: 0 for renaming to USERDATA\mr2cc\mr2cc.PLR
PlayerGarage 394: USERDATA\mr2cc\garage.gar is an illegal garage file
game.cpp 764: Entered Game::Init()
vidman.cpp 1237: Entered VidMan::Init()
ai_db.cpp 2143: Entered AIDatabase::Init()
steward.cpp 4680: Entered Steward::Init()
hwinput.cpp 6426: Entered HWInput::Init()
specialfx.cp 3255: Entered SpecialFX::Init()
dynman.cpp 674: Entered DynMan::Init()
slot.cpp 291: Entered Slot::Init()
vehgfx.cpp 2520: Entered VehGraphics::Init(GAMEDATA\TEAMS\TRACKVEHICLES\
SAFETYCAR\SAFETYCAR.CAS)
dynman.cpp 803: Exited DynMan::Init()
LensFlare.cp 59: Entered LensFlare::Init()
camera.cpp 4125: Entered CamMan::Init()
sound.cpp 753: Entered Sound::Init()
render.cpp 286: Entered Render::Init()
onscreen.cpp 2953: Entered OnScreen::Init()
AnimationLoa 24: AnimationLoader::Load(NANDERSTORP.ani)
game.cpp 893: Entered Game::Restart()
NetComm.cpp 8844: Entering "SynchronizeWithServer()"
sound.cpp 760: Entered Sound::Restart()
steward.cpp 4835: Entered Steward::Restart()
specialfx.cp 3732: Entered SpecialFX::Restart()
hwinput.cpp 6437: Entered HWInput::Restart()
dynman.cpp 811: Entered DynMan::Restart()
driver.cpp 624: Race Ability: 3.000000 CorneringAdd: 1.500000
camera.cpp 4149: Entered CamMan::Restart()
render.cpp 302: Entered Render::Restart()
onscreen.cpp 2973: Entered OnScreen::Restart()
vidman.cpp 1454: Entered VidMan::Restart()
plrfile.cpp 3381: Entered PlayerFile::Restart()
game.cpp 1087: Entered Game:

ost()
sound.cpp 849: Entered Sound:

ost()
specialfx.cp 3868: Entered SpecialFX:

ost()
steward.cpp 5363: Entered Steward:

ost()
hwinput.cpp 6467: Entered HWInput:

ost()
dynman.cpp 1516: Entered DynMan:

ost()
camera.cpp 4295: Entered CamMan:

ost()
render.cpp 480: Entered Render:

ost()
onscreen.cpp 3038: Entered OnScreen:

ost()
vidman.cpp 1759: Entered VidMan:

ost()
plrfile.cpp 3386: Entered PlayerFile:

ost()
plrfile.cpp 2510: Attempting to save to USERDATA\mr2cc\mr2cc.TMP
plrfile.cpp 2533: Retcode: 0 for renaming to USERDATA\mr2cc\mr2cc.PLR
game.cpp 717: Entered Game:

etup()
hwinput.cpp 6383: Entered HWInput:

etup()
options.cpp 1561: Entered Options:

etup()
O_AppGz.cpp 30681: Join Session was successful, setting local session description:
O_AppGz.cpp 30682: ** Session Name: www4.altbierbude.de
O_AppGz.cpp 30683: ** Scene Base: 70Nordschleife
O_AppGz.cpp 30684: ** AI Opp: 0
O_AppGz.cpp 30685: ** Human Opp: 0
O_AppGz.cpp 30686: ** Max Players: 31
specialfx.cp 3144: Entered SpecialFX:

etup()
steward.cpp 4585: Entered Steward:

etup()
dynman.cpp 644: Entered DynMan:

etup()
sound.cpp 748: Entered Sound:

etup()
onscreen.cpp 2947: Entered OnScreen:

etup()
vidman.cpp 1184: Entered VidMan:

etup()
plrfile.cpp 3344: Entered PlayerFile:

etup()
plrfile.cpp 2510: Attempting to save to USERDATA\mr2cc\mr2cc.TMP
plrfile.cpp 2533: Retcode: 0 for renaming to USERDATA\mr2cc\mr2cc.PLR
PlayerGarage 394: USERDATA\mr2cc\garage.gar is an illegal garage file
game.cpp 764: Entered Game::Init()
vidman.cpp 1237: Entered VidMan::Init()
ai_db.cpp 2143: Entered AIDatabase::Init()
steward.cpp 4680: Entered Steward::Init()
hwinput.cpp 6426: Entered HWInput::Init()
specialfx.cp 3255: Entered SpecialFX::Init()
dynman.cpp 674: Entered DynMan::Init()
slot.cpp 291: Entered Slot::Init()
vehgfx.cpp 2520: Entered VehGraphics::Init(GAMEDATA\TEAMS\TRACKVEHICLES\
SAFETYCAR\SAFETYCAR.CAS)
dynman.cpp 803: Exited DynMan::Init()
LensFlare.cp 59: Entered LensFlare::Init()
camera.cpp 4125: Entered CamMan::Init()
sound.cpp 753: Entered Sound::Init()
render.cpp 286: Entered Render::Init()
onscreen.cpp 2953: Entered OnScreen::Init()
AnimationLoa 24: AnimationLoader::Load(70Nordschleife.ani)
game.cpp 893: Entered Game::Restart()
NetComm.cpp 8844: Entering "SynchronizeWithServer()"
sound.cpp 760: Entered Sound::Restart()
steward.cpp 4835: Entered Steward::Restart()
specialfx.cp 3732: Entered SpecialFX::Restart()
hwinput.cpp 6437: Entered HWInput::Restart()
dynman.cpp 811: Entered DynMan::Restart()
driver.cpp 624: Race Ability: 3.000000 CorneringAdd: 1.500000
camera.cpp 4149: Entered CamMan::Restart()
render.cpp 302: Entered Render::Restart()
onscreen.cpp 2973: Entered OnScreen::Restart()
vidman.cpp 1454: Entered VidMan::Restart()
plrfile.cpp 3381: Entered PlayerFile::Restart()
game.cpp 1087: Entered Game:

ost()
sound.cpp 849: Entered Sound:

ost()
specialfx.cp 3868: Entered SpecialFX:

ost()
steward.cpp 5363: Entered Steward:

ost()
hwinput.cpp 6467: Entered HWInput:

ost()
dynman.cpp 1516: Entered DynMan:

ost()
camera.cpp 4295: Entered CamMan:

ost()
render.cpp 480: Entered Render:

ost()
onscreen.cpp 3038: Entered OnScreen:

ost()
vidman.cpp 1759: Entered VidMan:

ost()
plrfile.cpp 3386: Entered PlayerFile:

ost()
plrfile.cpp 2510: Attempting to save to USERDATA\mr2cc\mr2cc.TMP
plrfile.cpp 2533: Retcode: 0 for renaming to USERDATA\mr2cc\mr2cc.PLR
game.cpp 717: Entered Game:

etup()
hwinput.cpp 6383: Entered HWInput:

etup()
options.cpp 1561: Entered Options:

etup()
plrfile.cpp 2510: Attempting to save to USERDATA\mr2cc\mr2cc.TMP
plrfile.cpp 2533: Retcode: 0 for renaming to USERDATA\mr2cc\mr2cc.PLR
game.cpp 1141: Entered Game::Exit()
sound.cpp 856: Entered Sound::Exit()
specialfx.cp 3906: Entered SpecialFX::Exit()
hwinput.cpp 6491: Entered HWInput::Exit()
dynman.cpp 1541: Entered DynMan::Exit()
onscreen.cpp 3056: Entered OnScreen::Exit()
vidman.cpp 1796: Entered VidMan::Exit()
osman.cpp 516: Entered OSMan::Exit()