diff --git a/targets/ARCH/ETHERNET/USERSPACE/LIB/eth_udp.c b/targets/ARCH/ETHERNET/USERSPACE/LIB/eth_udp.c
index b44485914b..bcab485498 100644
--- a/targets/ARCH/ETHERNET/USERSPACE/LIB/eth_udp.c
+++ b/targets/ARCH/ETHERNET/USERSPACE/LIB/eth_udp.c
@@ -47,7 +47,7 @@
 #include "ethernet_lib.h"
 #include "common/ran_context.h"
 
-#define DEBUG 0
+#define DEBUG 1
 
 // These are for IF5 and must be put into the device structure if multiple RUs in the same RAU !!!!!!!!!!!!!!!!!
 uint16_t pck_seq_num = 1;
@@ -142,8 +142,8 @@ int eth_socket_init_udp(openair0_device *device) {
     perror("ETHERNET: Cannot set SO_REUSEADDR option on socket (control)");
     exit(0);
   }
-  if (setsockopt(eth->sockfdd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(int))) {
-    perror("ETHERNET: Cannot set SO_REUSEADDR option on socket (user)");
+  if (setsockopt(eth->sockfdd, SOL_SOCKET, SO_NO_CHECK, &enable, sizeof(int))) {
+    perror("ETHERNET: Cannot set SO_NO_CHECK option on socket (user)");
     exit(0);
   }
   
@@ -404,7 +404,7 @@ int trx_eth_read_udp(openair0_device *device, openair0_timestamp *timestamp, voi
 	  perror("ETHERNET READ: ");
 	  exit(-1);
 	  } else {
-	    printf("AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN AGAIN \n");
+            bytes_received=0;
 	    goto again;
 	  }	  
 	} else if (errno == EWOULDBLOCK) {
diff --git a/targets/ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.c b/targets/ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.c
index 381d0437f5..b7b2099c1c 100644
--- a/targets/ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.c
+++ b/targets/ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.c
@@ -60,6 +60,7 @@ int trx_eth_start(openair0_device *device) {
     if (eth->flags == ETH_UDP_IF5_ORI_MODE) {
        AssertFatal(device->thirdparty_init != NULL, "device->thirdparty_init is null\n");
        AssertFatal(device->thirdparty_init(device) == 0, "third-party init failed\n");
+       device->openair0_cfg->samples_per_packet = 256;
     }
     /* initialize socket */
     if (eth->flags == ETH_RAW_MODE) {
@@ -136,8 +137,7 @@ int trx_eth_start(openair0_device *device) {
           if(eth_get_dev_conf_udp(device)!=0)  return -1;
           }*/
 
-        /* adjust MTU wrt number of samples per packet */
-        if(ethernet_tune (device,MTU_SIZE,UDP_IF4p5_PRACH_SIZE_BYTES)!=0)  return -1;
+        //if(ethernet_tune (device,MTU_SIZE,UDP_IF4p5_PRACH_SIZE_BYTES)!=0)  return -1;
 
         if(ethernet_tune (device,RCV_TIMEOUT,999999)!=0)  return -1;
     }