1. Do you need support for Assetto Corsa Competizione? Please use the proper forum below and ALWAYS zip and attach the WHOLE "Logs" folder in your c:\users\*youruser*\AppData\Local\AC2\Saved. The "AppData" folder is hidden by default, check "Hidden items" in your Windows view properties. If you report a crash, ALWAYS zip and attach the WHOLE "Crashes" folder in the same directory. Do not post "I have the same issue" in an existing thread with a game crash, always open your own thread. Do not PM developers and staff members for personal troubleshooting and support.
  2. As part of our continuous maintenance and improvements to Assetto Corsa Competizione we will be releasing small updates on a regular basis during the esports season which might not go through the usual announcement process detailing the changes until a later version update where these changes will be listed retrospectively.
  3. If ACC doesn't start with an error or the executable is missing, please add your entire Steam directory to the exceptions in your antivirus software, run a Steam integrity check or reinstall the game altogether. Make sure you add the User/Documents/Assetto Corsa Competizione folder to your antivirus/Defender exceptions and exclude it from any file sharing app (GDrive, OneDrive or Dropbox)! The Corsair iCue software is also known to conflict with Input Device initialization, if the game does not start up and you have such devices, please try disabling the iCue software and try again. [file:unknown] [line: 95] secure crt: invalid error is a sign of antivirus interference, while [Pak chunk signing mismatch on chunk] indicates a corrupted installation that requires game file verification.
  4. When reporting an issue with saved games, please always zip and attach your entire User/Documents/Assetto Corsa Competizione/Savegame folder, along with the logs and the crash folder (when reporting related to a crash).
ACC general support Note about silent updates Startup troubleshooting ACC savegame reports

Multiplayer Bugs & Issues

Discussions related to the Multiplayer system.

Announcement Title Start Date
Replies Views
Last Message
  1. pankykapus
    Locked Sticky

    READ HERE How to Use the Support Forums and Report Issues

    pankykapus, Sep 12, 2018
    Replies:
    1
    Views:
    31,520
    pankykapus
    pankykapus
    Jan 3, 2021
  2. AC Support
    Locked Sticky

    This thread, started by AC Support, has been deleted. Deleted by AC Support, Nov 28, 2021, Reason: No longer valid.
    View
  3. paulieGTR
    Locked Sticky

    Before Posting - Read the FAQs and Use Search Function

    paulieGTR, Nov 10, 2013
    Replies:
    1
    Views:
    84,410
    Tiago Fortuna
    Tiago Fortuna
    Nov 12, 2013
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WORKAROUND BUG ISSUE
Page 2 of 4

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  1. Arbuzzz

    KNOWN ISSUE Checksum is not checking kn5 file

    Arbuzzz, Apr 27, 2015 ... 2
    Replies:
    23
    Views:
    469
    bigbawmcgraw
    bigbawmcgraw
    Apr 30, 2015
  2. Mombius

    KNOWN ISSUE Can't spectate all cars

    Mombius, Apr 15, 2015
    Replies:
    2
    Views:
    120
    6S.Manu
    6S.Manu
    Apr 16, 2015
  3. vdoppio

    KNOWN ISSUE Multiplayer timing

    vdoppio, Oct 25, 2014
    Replies:
    18
    Views:
    774
    Fabio Wallner
    Fabio Wallner
    Mar 19, 2015
  4. WallyM

    KNOWN ISSUE Very minor server output bug

    WallyM, Mar 16, 2015
    Replies:
    1
    Views:
    35
    6S.Manu
    6S.Manu
    Mar 16, 2015
  5. Arbuzzz

    KNOWN ISSUE Acserver.exe crashes with spectator mode

    Arbuzzz, Mar 13, 2015
    Replies:
    3
    Views:
    51
    Arbuzzz
    Arbuzzz
    Mar 13, 2015
  6. Leonardo Ratafia

    KNOWN ISSUE Kick quorum?

    Leonardo Ratafia, Mar 11, 2015
    Replies:
    2
    Views:
    81
    Leonardo Ratafia
    Leonardo Ratafia
    Mar 11, 2015
  7. ears1991

    KNOWN ISSUE Players leaving pits before race start

    ears1991, Mar 11, 2015
    Replies:
    2
    Views:
    124
    Zacks
    Zacks
    Mar 11, 2015
  8. zamex23

    KNOWN ISSUE Mclarn p1

    zamex23, Mar 11, 2015
    Replies:
    0
    Views:
    81
    zamex23
    zamex23
    Mar 11, 2015
  9. classicpark

    KNOWN ISSUE Checksum failed, you have kicked out of the race

    classicpark, Jan 14, 2015 ... 2 3
    Replies:
    49
    Views:
    1,716
    bigbawmcgraw
    bigbawmcgraw
    Mar 8, 2015
  10. never_eat_yellow_snow1

    KNOWN ISSUE Typing chat messages actually change the game settings

    never_eat_yellow_snow1, Feb 23, 2015
    Replies:
    13
    Views:
    268
    never_eat_yellow_snow1
    never_eat_yellow_snow1
    Feb 25, 2015
  11. Leonardo Ratafia

    KNOWN ISSUE Big server log

    Leonardo Ratafia, Feb 7, 2015
    Replies:
    12
    Views:
    167
    lordpatou
    lordpatou
    Feb 14, 2015
  12. Bruno Compagnone

    KNOWN ISSUE Multiplayer aids

    Bruno Compagnone, Feb 1, 2015 ... 2
    Replies:
    22
    Views:
    499
    kusk0r
    kusk0r
    Feb 3, 2015
  13. VBarreto

    KNOWN ISSUE Multiplayer sync vs overclockig software

    VBarreto, Sep 6, 2014
    Replies:
    18
    Views:
    903
    VBarreto
    VBarreto
    Jan 23, 2015
  14. Denis Mitchell

    KNOWN ISSUE Multiplayer car setups ride heights

    Denis Mitchell, Oct 21, 2014
    Replies:
    12
    Views:
    311
    Spajka
    Spajka
    Jan 3, 2015
  15. TheBoneHead

    KNOWN ISSUE Track Sectors and cuts

    TheBoneHead, May 9, 2014
    Replies:
    11
    Views:
    509
    B1gy
    B1gy
    Dec 26, 2014
  16. Cain
    Locked

    KNOWN ISSUE Connection issue - the server seems to be unavailable (player)

    Cain, Oct 16, 2014 ... 8 9 10
    Replies:
    196
    Views:
    7,379
    6S.Manu
    6S.Manu
    Dec 23, 2014
  17. ears1991

    KNOWN ISSUE People can join server and be placed at front of grid without qualifying

    ears1991, Nov 23, 2014
    Replies:
    6
    Views:
    106
    ears1991
    ears1991
    Nov 24, 2014
  18. FéLix

    KNOWN ISSUE Server crash

    FéLix, Oct 27, 2014
    Replies:
    5
    Views:
    132
    Jaye
    Jaye
    Nov 18, 2014
  19. Albert McSaltens

    KNOWN ISSUE Server cfg

    Albert McSaltens, Nov 18, 2014
    Replies:
    3
    Views:
    165
    Albert McSaltens
    Albert McSaltens
    Nov 18, 2014
  20. DeX

    KNOWN ISSUE No "Lost connection to server" notification

    DeX, May 11, 2014
    Replies:
    3
    Views:
    98
    1wild1
    1wild1
    Nov 16, 2014
Showing threads 21 to 40 of 69

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