Cod2x fail

An excerpt from Discord.

We would also like to comment on possible incompatibilities. Unfortunately, some players were unable to connect to the server, often receiving the message “Impure client detected. Invalid .IWD files referenced.”

If you encounter this error, go to your game directory via “Explorer or Windows File Manager.” Here, you just need to check whether you are using the Steam version or whether the game was installed manually, as this will change the directory paths. There you will find the “sparta_sd” folder, among others. Open it and delete all “iwd files.” Now go back and switch to the “Main folder,” delete the following file “~~~~~~~~sp.iwd” and all similar files. It is also possible that the file “zpam322.iwd or zpam334.iwd” is causing the error. In this case, please delete it as well.