This page is organized by problem. Look in the table of contents for your problem and then click it to view the solution(s).
First Things First
Before you take any troubleshooting steps, please verify that you pass all of these preliminary "tests."
Try Other Source Games First
Some people have mentioned that they're experiencing crashing/bad fps/whatever problems, but fail to mention if they have attempted trying other Source-based games.
Please make sure you try other Source games first and state this in your post, as not only does this avoid confusion and uncertainty for others, but it will also give the devs a chance to pinpoint if the issue is caused by FF or not. Some problems occur as a direct result of issues with the Source engine itself, which the FF developers obviously have no control over themselves.
Problems may also occur as a result of your PC simply not being up to the task in one way or another. The devs and others on the forums here will do everything possible to help with PC matters, such as performance and maintenance tips for instance, but sometimes you just have to realise that upgrading your 1800+, 512mb of RAM and 9800 pro is really the best solution to your problems.
Finally, making sure you respect these points will give a better overall impression of the mod itself! Failing to do so can result in unfair allegations about its general stability, and could put potential newcomers off. Please keep this in mind!
Common Problems & Solutions
Problem: I can connect to an FF server but I get dropped after a minute or two.
Problem: Upon joining a server I get an error message that reads "OnGameRulesCreationStringChanged: missing gamerules class 'CFFGameRules' on the client."
Problem: My sound is REALLY quiet.
Crashing on Startup
In no particular order:
Server Uses Different Class Tables
Problem: I get a "Server uses different class tables" error. What's up with that?
The updates are available as:
Make sure you have FF updated to the latest version. Unfortunately, some servers operators are slow to update their servers. So it's possible to have an updated FF installation and get the error from an old FF version on a server.
Installer Skipping Files
If you run into the installer skipping files, delete your clientregistry.blob. It will be located somewhere similar to: C:\Program Files\Steam\ClientRegistry.blob. However, your ClientRegistry.blob may be located in a different place.
Follow these steps:
Crash Problems from Video Drivers
Some players have experienced complete lockups and had other similar issues due to driver issues. This is often solved by uninstalling old drivers and reinstalling new ones. When reinstalling drivers, make sure you do the following:
NOTE: If you're going to install and use the latest ATI Catalyst Control Center, which is part of the normal ATI Catalyst Software Suite, you must first install the Microsoft .NET Framework (Version 2.0) on Windows XP. You can also get this VIA Window/Microsoft Update.
We are in the process of putting together a more detailed guide for nVidia users. In the meantime, you might find some useful info here:
FPS Issues & Tweaking
If you are having issues with low FPS, please make sure that you've updated your video card drivers to the latest stable versions. Please also make sure that your system meets the requirements for Fortress Forever. After you have checked that, you can go about trying the various tweaks that have been compiled by our forumers.
Apathy has created an excellent guide for FPS tweaking. There are also other tips and tricks posted by others in that thread.
FPS/Lag Fix: Disable Steam Friends
Steam friends is a packet hog, and can cause a massive decrease in FPS. If you disable this feature, you may increase your FPS substantially.
To disable Steam Friends during games, join a server. Press Shift + Tab. Enter Settings, click the third tab. There should be a check box that is checked that says "enable steam community during gameplay" or something similar. Uncheck that. Restart Fortress Forever, and your FPS should go up substantially.
You can do this above in any HL2 game, and it will also effect FF. So if you can't run FF, try it in another game like HL2: DM.
From the Friends List
In friends go to View > Settings > Friends Tab and uncheck "Automatically start friends when I launch STEAM". If you have manually logged into friends, be sure to restart STEAM before playing games so as to log out of friends.
There is an old bug in all Source games involving the file datacache.dll crashing at 0x0000b423. Apparently Valve knows about this issue, but these are some work-arounds that FF forum users have found to work:
Problems from Steam Updates
Sometimes Steam Updates seem to cause problems with Source SDK Base games (of which Fortress Forever is one). This is a collection of issues from the Steam forums that other users have had with other Source games. They may be of help to you if you are experiencing an issue similar to them.
There is a large list, so please see this forum thread for the whole list of issues. Select important issues have been put here for your convenience. There are also many more threads like these on the Steam forums, so try browsing those as well.
My Problem Isn't Here!
If you're problem isn't listed on this page, that could mean a few different things. It may be that your problem hasn't been encountered before, or it could be an issue that has yet to be added to this page. There are any number of other reasons, but regardless, you should try the following if you can't find a solution to your problem on this page: