diff --git a/bsp/default/root_file_system/etc/config/wireless.tpl b/bsp/default/root_file_system/etc/config/wireless.tpl
index 8027e8b7..96f3c9f7 100644
--- a/bsp/default/root_file_system/etc/config/wireless.tpl
+++ b/bsp/default/root_file_system/etc/config/wireless.tpl
@@ -3,6 +3,7 @@ config wifi-device  radio0
         option channel  ${BATMAN_CHANNEL}
         option phy      phy0
         option hwmode   11g
+        option htmode   HT20
 
 config wifi-iface
         option device   radio0
diff --git a/bsp/wdr4300/root_file_system/etc/config/wireless.tpl b/bsp/wdr4300/root_file_system/etc/config/wireless.tpl
index 6f483f61..f5739e6e 100644
--- a/bsp/wdr4300/root_file_system/etc/config/wireless.tpl
+++ b/bsp/wdr4300/root_file_system/etc/config/wireless.tpl
@@ -3,7 +3,7 @@ config wifi-device  radio0
 	option channel  ${BATMAN_CHANNEL}
 	option phy      phy0
 	option hwmode   11g
-	option htmode   HT40+
+	option htmode   HT20
 	option country  DE
 
 config wifi-iface 'w2mesh'
diff --git a/bsp/wdr4900/root_file_system/etc/config/wireless.tpl b/bsp/wdr4900/root_file_system/etc/config/wireless.tpl
index d6dc0f1a..a78bfedb 100644
--- a/bsp/wdr4900/root_file_system/etc/config/wireless.tpl
+++ b/bsp/wdr4900/root_file_system/etc/config/wireless.tpl
@@ -30,7 +30,7 @@ config wifi-device  radio1
 	option channel  ${BATMAN_CHANNEL}
 	option phy      phy1
 	option hwmode   11g
-	option htmode   HT40+
+	option htmode   HT20
 	option country  DE
 
 config wifi-iface 'w2mesh'