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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.
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.
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.
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

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READ HERE How to Use the Support Forums and Report Issues

pankykapus, Sep 12, 2018

Replies:

1

Views:

31,525

pankykapus

Jan 3, 2021
Locked Sticky

FOR PC USERS: Rent your Assetto Corsa or Assetto Corsa Competizione game server with 10% off !

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 Deleted by AC Support, Nov 28, 2021, Reason: No longer valid.

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Locked Sticky

Before Posting - Read the FAQs and Use Search Function

paulieGTR, Nov 10, 2013

Replies:

1

Views:

84,415

Tiago Fortuna

Nov 12, 2013

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Page 12 of 16

Filters:

Prefix:: NO ISSUE x

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Sort By:: Title Start Date; Replies Views; Last Message ↓

NO ISSUE Can't race online more than a few laps

Yokomo, Jul 25, 2014

Replies:

3

Views:

80

AC Support

Jul 26, 2014
NO ISSUE Checksum mismatch

Alessandro, Jul 24, 2014

Replies:

6

Views:

102

AC Support

Jul 25, 2014
NO ISSUE Acs.exe exits when last available car was taken before i join

Thomas Gocke, Jul 22, 2014

Replies:

2

Views:

37

Thomas Gocke

Jul 25, 2014
NO ISSUE Acserver.exe closing (solved: forgot car matching)

Olivier Prenten, Jul 24, 2014

Replies:

2

Views:

71

Olivier Prenten

Jul 24, 2014
NO ISSUE Unexpected_packet_received

Soki, Jul 24, 2014

Replies:

4

Views:

70

AC Support

Jul 24, 2014
NO ISSUE [python app makes the game crash] crash after new user joins 0.21

Roberto Olivetti, Jul 22, 2014

Replies:

4

Views:

51

Roberto Olivetti

Jul 23, 2014
NO ISSUE Weak slipstream in mp

demonized, Jul 23, 2014

Replies:

15

Views:

212

demonized

Jul 23, 2014
NO ISSUE Acserver.exe crash after few seconds, cannot host

Michele Papis, May 9, 2014

Replies:

10

Views:

170

Fred Joseph

Jul 23, 2014
NO ISSUE Multiplayer freezing help

Kramma[slipstreamers.net], Jun 12, 2014

Replies:

18

Views:

322

Kramma[slipstreamers.net]

Jul 23, 2014
NO ISSUE With "pickup mode enabled" cannot choose car to enter server

Michele Papis, Jul 18, 2014 ... 2

Replies:

38

Views:

1,216

Buggi

Jul 22, 2014
NO ISSUE Ac multiplayer server bug in update 0.21.4 (solved: entry_list missing)

Scott1904, Jul 21, 2014

Replies:

6

Views:

386

jasjeet

Jul 21, 2014
NO ISSUE [update acs] cannot start dedicated server

Tiger69, Jul 21, 2014

Replies:

14

Views:

221

Soki

Jul 21, 2014
NO ISSUE [update acs] error outdated protocol version - update your server

beany2009, Jul 21, 2014

Replies:

12

Views:

167

beany2009

Jul 21, 2014
NO ISSUE [update acs] server error

Buggi, Jul 21, 2014

Replies:

5

Views:

106

Buggi

Jul 21, 2014
NO ISSUE Prebooking/entry list broken for some cars

Wealthysoup, Jul 20, 2014

Replies:

0

Views:

66

Wealthysoup

Jul 20, 2014
NO ISSUE People join during race

Tiger69, Jul 18, 2014

Replies:

14

Views:

320

neel

Jul 19, 2014
Locked

NO ISSUE Kicked checksum mismatch

Albert McSaltens, Jul 18, 2014

Replies:

1

Views:

155

Albert McSaltens

Jul 18, 2014
NO ISSUE 98t wont show on server

john oliver, Jul 18, 2014

Replies:

2

Views:

109

rolli7

Jul 18, 2014
NO ISSUE Unexpected packet on own server. (solved: use lan session)

ChapsF, Jul 14, 2014

Replies:

4

Views:

104

ChapsF

Jul 14, 2014
NO ISSUE 5 min practice and quali?

Guy Moulton, Jul 1, 2014

Replies:

3

Views:

115

Guy Moulton

Jul 14, 2014

Showing threads 221 to 240 of 304

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