diff --git a/boards/nxp/fmuk66-e/nuttx-config/socketcan/defconfig b/boards/nxp/fmuk66-e/nuttx-config/socketcan/defconfig
index 5bc4634a57..0eedb3e153 100644
--- a/boards/nxp/fmuk66-e/nuttx-config/socketcan/defconfig
+++ b/boards/nxp/fmuk66-e/nuttx-config/socketcan/defconfig
@@ -26,6 +26,7 @@ CONFIG_BOARD_LOOPSPERMSEC=15175
 CONFIG_BOARD_RESET_ON_ASSERT=2
 CONFIG_BUILTIN=y
 CONFIG_C99_BOOL8=y
+CONFIG_CAN_CONNS=1
 CONFIG_CDCACM=y
 CONFIG_CDCACM_BULKIN_REQLEN=96
 CONFIG_CDCACM_PRODUCTID=0x001c
@@ -123,6 +124,7 @@ CONFIG_NETUTILS_TELNETD=y
 CONFIG_NET_BROADCAST=y
 CONFIG_NET_CAN=y
 CONFIG_NET_CAN_NOTIFIER=y
+CONFIG_NET_CAN_RAW_FILTER_MAX=0
 CONFIG_NET_CAN_RAW_TX_DEADLINE=y
 CONFIG_NET_CAN_SOCK_OPTS=y
 CONFIG_NET_ICMP=y
diff --git a/boards/nxp/fmuk66-e/src/board_config.h b/boards/nxp/fmuk66-e/src/board_config.h
index f3beb66dd6..b3f665ccf5 100644
--- a/boards/nxp/fmuk66-e/src/board_config.h
+++ b/boards/nxp/fmuk66-e/src/board_config.h
@@ -339,7 +339,7 @@ __END_DECLS
 #define LED_TIM3_CH4OUT   /* PTC8  RGB_B */ PIN_FTM3_CH4_1
 
 /* This board provides a DMA pool and APIs */
-#define BOARD_DMA_ALLOC_POOL_SIZE 5120
+#define BOARD_DMA_ALLOC_POOL_SIZE 2048
 
 /* This board provides the board_on_reset interface */
 
diff --git a/boards/nxp/fmuk66-v3/nuttx-config/socketcan/defconfig b/boards/nxp/fmuk66-v3/nuttx-config/socketcan/defconfig
index 5ea5fda9b9..b0cfe5dbf2 100644
--- a/boards/nxp/fmuk66-v3/nuttx-config/socketcan/defconfig
+++ b/boards/nxp/fmuk66-v3/nuttx-config/socketcan/defconfig
@@ -25,6 +25,7 @@ CONFIG_BOARD_LOOPSPERMSEC=15175
 CONFIG_BOARD_RESET_ON_ASSERT=2
 CONFIG_BUILTIN=y
 CONFIG_C99_BOOL8=y
+CONFIG_CAN_CONNS=1
 CONFIG_CDCACM=y
 CONFIG_CDCACM_BULKIN_REQLEN=96
 CONFIG_CDCACM_PRODUCTID=0x001c
@@ -122,6 +123,7 @@ CONFIG_NETUTILS_TELNETD=y
 CONFIG_NET_BROADCAST=y
 CONFIG_NET_CAN=y
 CONFIG_NET_CAN_NOTIFIER=y
+CONFIG_NET_CAN_RAW_FILTER_MAX=0
 CONFIG_NET_CAN_RAW_TX_DEADLINE=y
 CONFIG_NET_CAN_SOCK_OPTS=y
 CONFIG_NET_ICMP=y
diff --git a/boards/nxp/fmuk66-v3/src/board_config.h b/boards/nxp/fmuk66-v3/src/board_config.h
index 51586205fe..b0a6054ccf 100644
--- a/boards/nxp/fmuk66-v3/src/board_config.h
+++ b/boards/nxp/fmuk66-v3/src/board_config.h
@@ -343,7 +343,7 @@ __END_DECLS
 #define LED_TIM3_CH4OUT   /* PTC8  RGB_B */ PIN_FTM3_CH4_1
 
 /* This board provides a DMA pool and APIs */
-#define BOARD_DMA_ALLOC_POOL_SIZE 5120
+#define BOARD_DMA_ALLOC_POOL_SIZE 2048
 
 /* This board provides the board_on_reset interface */