If you don’t want to modify the engine, you must reduce your resource count.
Players get kicked with Reliable channel overflow (in precache). This happens when the server tries to push too many resource names to the client during connection. cs 1.6 precaching resources problem
public client_precache_model(modelname[]) if (!is_model_precached(modelname)) precache_model(modelname); If you don’t want to modify the engine,
: Recent updates to the Steam version of CS 1.6 can sometimes conflict with older server mods or custom assets. How to Fix Client-Side Freezes and Crashes cs 1.6 precaching resources problem
: Instead of precaching multiple separate sub-models, try to use a single model file containing multiple sub-groups to save "slots" in the precache list.