diff --git a/README.md b/README.md
index 4c01493..d667db0 100644
--- a/README.md
+++ b/README.md
@@ -126,7 +126,7 @@ Most of the set-commands are effective only after save and reset.
 - portmap add [TCP|UDP] _external_port_ _internal_ip_ _internal_port_: adds a port forwarding
 - portmap remove [TCP|UDP] _external_port_: deletes a port forwarding
 - nslookup _name_: starts a DNS lookup for the given name and displays the result
-- ping _ip-addr_: checks IP connectivity with ICMP echo request/reply
+- ping _host_: checks IP connectivity with ICMP echo request/reply (host as IP address or DNS name)
 
 ### Firewall/Monitor Config
 - acl [from_sta|to_sta] [TCP|UDP|IP] _src-ip_ [_src_port_] _desr-ip_ [_dest_port_] [allow|deny|allow_monitor|deny_monitor]: adds a new rule to the ACL
diff --git a/firmware/0x02000.bin b/firmware/0x02000.bin
index 2b1d7b7..cbf3f55 100644
Binary files a/firmware/0x02000.bin and b/firmware/0x02000.bin differ
diff --git a/firmware/0x82000.bin b/firmware/0x82000.bin
index e938599..fd68731 100644
Binary files a/firmware/0x82000.bin and b/firmware/0x82000.bin differ
diff --git a/firmware/sha1sums b/firmware/sha1sums
index 386025f..af238f0 100644
--- a/firmware/sha1sums
+++ b/firmware/sha1sums
@@ -1,3 +1,3 @@
-89709d6484a66253d3159f2740da338337805e0f  firmware/0x02000.bin
-04fdebd28ce94542519c08a4f94bec262ff343c6  firmware/0x82000.bin
+83db266f74801f2d9236314c6beccb0cd2c085c9  firmware/0x02000.bin
+37cc650900e4df9fa368f84a2b49f8d0dc986e59  firmware/0x82000.bin
 9bd7d25204d71b3db5f35e0b2def8a6aaa7f765c  firmware/0x00000.bin
diff --git a/user/user_config.h b/user/user_config.h
index afb1c58..acb0d45 100644
--- a/user/user_config.h
+++ b/user/user_config.h
@@ -1,7 +1,7 @@
 #ifndef _USER_CONFIG_
 #define _USER_CONFIG_
 
-#define		ESP_REPEATER_VERSION "V2.2.3"
+#define		ESP_REPEATER_VERSION "V2.2.4"
 
 #define		LOCAL_ACCESS 0x01
 #define		REMOTE_ACCESS 0x02
diff --git a/user/user_main.c b/user/user_main.c
index 057e726..e59fd0d 100644
--- a/user/user_main.c
+++ b/user/user_main.c
@@ -278,11 +278,11 @@ void ICACHE_FLASH_ATTR user_ping_sent(void *arg, void *pdata)
     system_os_post(0, SIG_CONSOLE_TX, (ETSParam) currentconn);
 }
 
-void ICACHE_FLASH_ATTR user_do_ping(uint32_t ipaddr)
+void ICACHE_FLASH_ATTR user_do_ping(const char *name, ip_addr_t *ipaddr, void *arg)
 {
     ping_opt.count = 4;    //  try to ping how many times
     ping_opt.coarse_time = 2;  // ping interval
-    ping_opt.ip = ipaddr;
+    ping_opt.ip = ipaddr->addr;
     ping_success_count = 0;
 
     ping_regist_recv(&ping_opt,user_ping_recv);
@@ -1654,7 +1654,6 @@ void ICACHE_FLASH_ATTR console_handle_command(struct espconn *pespconn)
 	    os_sprintf(response, INVALID_NUMARGS);
 	    goto command_handled;
 	}
-	to_console("\r\n");
 	uint32_t result = espconn_gethostbyname(NULL, tokens[1], &resolve_ip, dns_resolved);
 	if (result == ESPCONN_OK) {
 		os_sprintf(response, "DNS lookup for %s: " IPSTR "\r\n", tokens[1], IP2STR(&resolve_ip));
@@ -1682,9 +1681,14 @@ void ICACHE_FLASH_ATTR console_handle_command(struct espconn *pespconn)
 	    os_sprintf(response, INVALID_NUMARGS);
 	    goto command_handled;
 	}
-	to_console("\r\n");
         currentconn = pespconn;
-        user_do_ping(ipaddr_addr(tokens[1]));
+	uint32_t result = espconn_gethostbyname(NULL, tokens[1], &resolve_ip, user_do_ping);
+	if (result == ESPCONN_OK) {
+		ip_addr_t ip;
+		ip.addr = ipaddr_addr(tokens[1]);
+		user_do_ping(tokens[1], &ip, NULL);
+	}
+        //user_do_ping(ipaddr_addr(tokens[1]));
         return;
     }
 #endif