Hopefully one of these Jagex launcher fixes work for you. Please let me know what works for you, even if it is not listed, as it can potentially help others!

Hope you enjoyed!

Runescape Client Downloads:

OSRS:
https://oldschool.runescape.com/launcher

RS3:
https://www.runescape.com/launcher

Jagex Launcher:
https://www.jagex.com/en-GB/launcher#...

Also don't forget to follow on my social media channels at:

Youtube: King_J_Aries
Kick: https://kick.com/king-j-aries
Instagram: @King_J_Aries   / king_j_aries_.  .

Checkout this video as well from another creator!
   • Ultimate OBS Audio Settings