RuneScape errors and common problems

Game crashes: Client or PC crashes during play

Means

RuneScape or Old School closes, or your whole PC crashes while you play. Jagex points to low specs, memory, old graphics drivers, damaged files and malware.

First step

Check that your device meets the minimum specs, then restart it. All steps

Jagex Launcher stuck: Launcher hangs on an update or fails

Means

The Jagex Launcher sits on "Please wait while an update is applied" or can't be repaired. Jagex says the Launcher may be running twice, or you are using an old installer.

First step

Close both Launcher windows from the system tray, then start it again. All steps

Client won't load: Black screen or stuck while loading

Means

The desktop client won't open, shows a black screen or never finishes loading. Jagex points to old software, damaged cache files and programs on your Windows profile.

First step

Update your drivers, programs and operating system. All steps

Lag and low FPS: High ping, stutter or low frame rate

Means

Characters freeze then jump, or clicks respond late. Jagex says it is usually a poor connection, a graphics card or driver that can't keep up, or input lag from your display.

First step

Check RuneScape and Old School on X and the service update archive for outages. All steps

Account locked: Locked after a suspicious login attempt

Means

Your account is locked because Jagex saw suspicious activity on it. It stays locked until the owner recovers it.

First step

Scan and secure your computer or phone before anything else. All steps

Too many login attempts: Login blocked during busy periods

Means

Jagex says this shows up when traffic is high and logins are being held back. Trying again and again makes it worse.

First step

Wait at least 30 minutes before you try to log in again. All steps

loading application resources: Client stuck on the first loading screen

Means

The client never gets past "loading application resources". Jagex says it can happen when a second screen is connected with an HDMI cable.

First step

Close the client. All steps

c0000409: Client crash, often in busy areas

Means

The client closes with a stack buffer overrun message and code c0000409. Jagex's advice points to crowded areas and old graphics drivers.

First step

Stay away from busy, crowded areas. All steps