diff --git a/package/mtk/applications/luci-app-mtwifi-cfg/root/usr/share/luci-app-mtwifi-cfg/wireless-mtk.js b/package/mtk/applications/luci-app-mtwifi-cfg/root/usr/share/luci-app-mtwifi-cfg/wireless-mtk.js
index 1c6175398d..267ac91dd4 100644
--- a/package/mtk/applications/luci-app-mtwifi-cfg/root/usr/share/luci-app-mtwifi-cfg/wireless-mtk.js
+++ b/package/mtk/applications/luci-app-mtwifi-cfg/root/usr/share/luci-app-mtwifi-cfg/wireless-mtk.js
@@ -1359,11 +1359,11 @@ return view.extend({
 
 					o = ss.taboption('advanced', form.Flag, 'mumimo_dl', _('MU-MIMO DL'));
 					o.depends('mode', 'ap');
-					o.default = o.enabled;
+					o.default = o.disabled;
 
 					o = ss.taboption('advanced', form.Flag, 'mumimo_ul', _('MU-MIMO UL'));
 					o.depends('mode', 'ap');
-					o.default = o.enabled;
+					o.default = o.disabled;
 
 					o = ss.taboption('advanced', form.Flag, 'ofdma_dl', _('OFDMA DL'));
 					o.depends('mode', 'ap');
diff --git a/package/mtk/applications/mtwifi-cfg/files/mtwifi-cfg/mtwifi_defs.lua b/package/mtk/applications/mtwifi-cfg/files/mtwifi-cfg/mtwifi_defs.lua
index 28762ba1d6..40181854f2 100644
--- a/package/mtk/applications/mtwifi-cfg/files/mtwifi-cfg/mtwifi_defs.lua
+++ b/package/mtk/applications/mtwifi-cfg/files/mtwifi-cfg/mtwifi_defs.lua
@@ -61,8 +61,8 @@ mtwifi_defs.vif_cfgs = {
     ["VHT_LDPC"] = "1",
     ["VHT_SGI"] = "1",
     ["VHT_STBC"] = "1",
-    ["MuMimoDlEnable"] = "1",
-    ["MuMimoUlEnable"] = "1",
+    ["MuMimoDlEnable"] = "0",
+    ["MuMimoUlEnable"] = "0",
     ["MuOfdmaDlEnable"] = "1",
     ["MuOfdmaUlEnable"] = "1",
     ["DLSCapable"] = "0",