diff --git a/libs/net/nm/net_dgrm.c b/libs/net/nm/net_dgrm.c
index 29e77ecf8..100c3b2f5 100644
--- a/libs/net/nm/net_dgrm.c
+++ b/libs/net/nm/net_dgrm.c
@@ -1269,6 +1269,8 @@ _Datagram_Connect (const char *host)
 			if (ret > 0) {
 				// is it from the right place?
 				if (sfunc.AddrCompare (&readaddr, &sendaddr) != 0) {
+					Sys_MaskPrintf (SYS_NET, "%s ", sfunc.AddrToString (&readaddr));
+					Sys_MaskPrintf (SYS_NET, "%s\n", sfunc.AddrToString (&sendaddr));
 					ret = 0;
 					continue;
 				}
diff --git a/libs/net/nm/net_udp.c b/libs/net/nm/net_udp.c
index 8a291a538..795092339 100644
--- a/libs/net/nm/net_udp.c
+++ b/libs/net/nm/net_udp.c
@@ -373,6 +373,7 @@ UDP_Read (int socket, byte *buf, int len, struct qsockaddr *addr)
 	ret = recvfrom (socket, buf, len, 0, (struct sockaddr *) addr, &addrlen);
 	if (ret == -1 && (errno == EWOULDBLOCK || errno == ECONNREFUSED))
 		return 0;
+	Sys_MaskPrintf (SYS_NET, "got %d bytes from %s\n", ret, UDP_AddrToString (addr));
 	return ret;
 }
 
@@ -417,6 +418,7 @@ UDP_Write (int socket, byte *buf, int len, struct qsockaddr *addr)
 				  sizeof (struct qsockaddr));
 	if (ret == -1 && errno == EWOULDBLOCK)
 		return 0;
+	Sys_MaskPrintf (SYS_NET, "sent %d bytes to %s\n", ret, UDP_AddrToString (addr));
 	return ret;
 }