diff --git a/client.config b/client.config
index a29067fa..fe8ddbb8 100644
--- a/client.config
+++ b/client.config
@@ -3,5 +3,4 @@ host_addr 10.10.1.2
 host_netmask 255.255.255.0
 host_gateway 0.0.0.0
 runtime_kthreads 4
-runtime_guaranteed_kthreads 4
-runtime_priority lc
+runtime_priority be
diff --git a/runtime/net/defs.h b/runtime/net/defs.h
index f99d267e..e16fa220 100644
--- a/runtime/net/defs.h
+++ b/runtime/net/defs.h
@@ -13,7 +13,7 @@
 #include "../defs.h"
 
 /* Maximum buffer for TX packets */
-#define MAX_BUF_LEN 64000
+#define MAX_BUF_LEN 65536
 
 extern struct mempool net_tx_buf_mp;
 
diff --git a/runtime/net/udp.c b/runtime/net/udp.c
index 7f35eb8f..f8b54fd7 100644
--- a/runtime/net/udp.c
+++ b/runtime/net/udp.c
@@ -411,7 +411,6 @@ static void udp_tx_release_mbuf(struct mbuf *m)
 ssize_t udp_write_to(udpconn_t *c, const void *buf, size_t len,
                      const struct netaddr *raddr)
 {
-	// log_info("udp_write_to() with len = %ld", len);
 	struct netaddr addr;
 	ssize_t ret;
 	struct mbuf *m;
@@ -421,8 +420,10 @@ ssize_t udp_write_to(udpconn_t *c, const void *buf, size_t len,
 		sizeof(struct ip_hdr) + sizeof(struct udp_hdr);
 	const uint8_t pkthdrsz = hdrsz - sizeof(struct tx_net_hdr);
 
-	if (len > MAX_BUF_LEN)
+	if (len > MAX_BUF_LEN) {
+		log_info("udp_write_to: len = %zu > MAX_BUF_LEN = %d", len, MAX_BUF_LEN);
 		return -EMSGSIZE;
+	}
 
 	if (!raddr) {
 		if (c->e.match == TRANS_MATCH_3TUPLE)
diff --git a/server.config b/server.config
index 639ff887..b165c9c7 100644
--- a/server.config
+++ b/server.config
@@ -3,5 +3,4 @@ host_addr 10.10.1.1
 host_netmask 255.255.255.0
 host_gateway 0.0.0.0
 runtime_kthreads 4
-runtime_guaranteed_kthreads 4
-runtime_priority lc
+runtime_priority be