Because Bad WiFi Shaders runs as a vanilla shader rather than a heavy mod pack, running it alongside third-party visual mods or large resource packs can sometimes stop the low-bitrate glitches from appearing on screen.
Turning Off Conflicting Shader Loaders
1. If you play with a shader loader such as Iris or OptiFine installed, having an external shader pack active will override Minecraft's vanilla shaders completely.
2. Open Options > Video Settings and navigate to your Shader Packs or Shaders menu.
3. Switch your external shaders to Off and apply the change so vanilla rendering resumes.
4. Remember that Bad WiFi Shaders will not appear inside that external Shaders menu—keep it enabled inside Options > Resource Packs instead.
Fixing Resource Pack Priority Issues
1. If your screen still looks normal, open Options > Resource Packs and inspect the Selected column on the right.
2. Other resource packs that modify vanilla shaders will overwrite Bad WiFi Shaders if they load above it.
3. Hover over Bad WiFi Shaders and click the up arrow until it sits at the very top of the Selected list.
4. Click Done to reload, then look across different blocks in your world to confirm the blurred colors and moving blocky pixels are active.