diff --git a/cmd_parser.c b/cmd_parser.c
index bd2fc544..4fc2b0cf 100644
--- a/cmd_parser.c
+++ b/cmd_parser.c
@@ -395,7 +395,7 @@ void parse_lag(void)
 		return;
 	}
 
-	if (cmd_words_len < 2)
+	if (cmd_words_len < 3)
 		goto err;
 
 	// Parse group, expect only one number 0-9;
@@ -406,10 +406,13 @@ void parse_lag(void)
 	if (group > 3)
 		goto err;
 
+	if (cmd_compare(2, "d")) {
+		port_lag_members_set(group, 0);
+		return;
+	}
+
 	uint8_t w = 2;
 	while (w < cmd_words_len) {
-//		write_char('|'); print_byte(w); write_char(':'); write_char(cmd_buffer[cmd_words_b[w]]); write_char('-');
-
 		// Parse port.
 		if (cmd_parse_port_separator(cmd_words_b[w++]) == 0)
 			goto err;
@@ -419,7 +422,7 @@ void parse_lag(void)
 	port_lag_members_set(group, members);
 	return;
 err:
-	print_string("Error: lag <1-4> [port]...\n");
+	print_string("Error: lag (show | <1-4> (d | <port>...))\n");
 }
 
 
diff --git a/dhcp.c b/dhcp.c
index d821f805..6cfa373a 100644
--- a/dhcp.c
+++ b/dhcp.c
@@ -94,7 +94,7 @@ void dhcp_prepare_request(void)
 	DHCP_P->hw_len = 6;
 	DHCP_P->hops = 0;
 
-	DHCP_P->tid = HTONS(dhcp_state.transaction_id);
+	DHCP_P->tid = dhcp_state.transaction_id;
 	DHCP_P->delay = HTONS(0);
 	DHCP_P->flags = 0;
 	// Clear fields client_ip to bootp_file
@@ -300,7 +300,7 @@ void parse_opts(void)
 
 void parse_dhcp(void)
 {
-	if (!DHCP_P->tid == HTONS(dhcp_state.transaction_id))
+	if (DHCP_P->tid != dhcp_state.transaction_id)
 		return;
 	if (DHCP_P->cookie[0] != 0x63 || DHCP_P->cookie[1] != 0x82 || DHCP_P->cookie[2] != 0x53 || DHCP_P->cookie[3] != 0x63)
 		return;
diff --git a/doc/link_aggregation.md b/doc/link_aggregation.md
index 6bde787e..b725e419 100644
--- a/doc/link_aggregation.md
+++ b/doc/link_aggregation.md
@@ -48,9 +48,11 @@ void port_lag_hash_set(__xdata uint8_t lag, __xdata uint8_t hash_bits) __banked;
 ## LAG configuration on the Serial Console
 For testing the following commands are provided on the serial console:
 ```
-> lag <LAG-ID> [p1] [p2]...
-  Create or set a LAG. Trunk-ID is 1 or 2. Ports are physical ports
-  If only the LAG-ID is given but no members, the LAG is deleted
+> lag <LAG-ID> <p1> [p2]...
+  Create or set a LAG. LAG-ID is 1 to 4. Ports are physical ports.
+
+> lag <LAG-ID> d
+  Delete the LAG.
 
 > lag show
   Shows information on all 4 lags
diff --git a/html/main.js b/html/main.js
index 37bf7b26..a549a7a7 100644
--- a/html/main.js
+++ b/html/main.js
@@ -1359,12 +1359,11 @@ function createPortTable() {
      for (let i = 1; i <= numPorts; i++) {
       if (pIsSFP[i-1])
         continue;
-      console.log("Table row: " + i + "pState: " + pState[i-2]);
       const tr = tbl.insertRow();
       let td = tr.insertCell(); td.appendChild(document.createTextNode(t('common_port') + i));
       let portName = portNames[physToLogPort[i-1]] || '';
       td = tr.insertCell(); td.appendChild(document.createTextNode(portName));
-      td = tr.insertCell(); td.innerHTML = linkText(pState[i] + 1);
+      td = tr.insertCell(); td.innerHTML = linkText(pState[i-1] + 1);
       tr.insertCell(); // filled by devRender()
       td = tr.insertCell(); td.innerHTML = sSelect.replaceAll("speed_sel", "speed_sel_" + i);
       td = tr.insertCell(); td.innerHTML = dSwitch.replaceAll("disable_port", "disable_port_" + i)
@@ -1787,7 +1786,11 @@ var l2SortCol = 'port';
 var l2SortDir = 1;
 
 function l2Key(e, col) {
-  if (col === 'port') return e.port === 'CPU' ? Number.MAX_SAFE_INTEGER : Number(e.port);
+  if (col === 'port') {
+    if (e.port === 'CPU') return Number.MAX_SAFE_INTEGER;
+    if (e.lag) return 100 + e.lag;
+    return Number(e.port);
+  }
   if (col === 'vlan') return Number(e.vlan);
   return String(e[col]).toLowerCase();
 }
@@ -1833,7 +1836,11 @@ function fillL2(s)
     return;
   s.sort(l2CMP);
   s = uniq(s);
-  l2All = s;
+  l2All = s.map(function(e) {
+    if (e.lag)
+      e.port = 'LAG' + e.lag;
+    return e;
+  });
   renderL2();
 }
 
@@ -2200,7 +2207,7 @@ function fetchLag() {
   sendXHTTP(xhttp);
 }
 async function lagSub(l) {
-  var cmd = "lag " + l;
+  var cmd = "lag " + (l + 1);
   for (let i = 1; i <= numPorts; i++) {
     if (document.getElementById("p_mLAG"+l+"_"+i).checked)
       cmd = cmd + ` ${i}`;
diff --git a/httpd/httpd.c b/httpd/httpd.c
index 3fb48308..b5f437a5 100644
--- a/httpd/httpd.c
+++ b/httpd/httpd.c
@@ -1012,7 +1012,7 @@ void httpd_appcall(void)
 			if (!authenticated && !(f_data[entry].start == FDATA_START_login_html 
 						|| f_data[entry].start == FDATA_START_port_svg 
 						|| f_data[entry].start == FDATA_START_sfp_svg
-						|| f_data[entry].start == FDATA_START_i18n_js
+						|| f_data[entry].start == FDATA_START_main_js
 						|| f_data[entry].start == FDATA_START_style_css)) {
 				send_to_login();
 				goto do_send;
diff --git a/httpd/page_impl.c b/httpd/page_impl.c
index 313a652e..b99f0b9b 100644
--- a/httpd/page_impl.c
+++ b/httpd/page_impl.c
@@ -359,6 +359,7 @@ void send_l2(uint16_t idx)
 	while (1) {
 		entries_left--;
 		uint8_t port = 0;
+		uint8_t lag;
 		reg_read_m(RTL837x_TBL_DATA_0);
 		REG_WRITE(RTL837x_TBL_DATA_0, sfr_data[0], sfr_data[1] & 0xfc, sfr_data[2] | (TBL_LUTREAD_NEXT_L2UC << 6), sfr_data[3]);
 
@@ -402,6 +403,9 @@ void send_l2(uint16_t idx)
 
 			port |= (sfr_data[3] & 0x3) << 2;
 			itoa_html(port);
+			slen += strtox(outbuf + slen, ",\"lag\":");
+			lag = port_lag_of(port);
+			itoa_html(lag == PORT_LAG_NONE ? 0 : lag + 1);
 		}
 
 		// Index
diff --git a/rtl837x_port.c b/rtl837x_port.c
index 1c966728..a640fb5d 100644
--- a/rtl837x_port.c
+++ b/rtl837x_port.c
@@ -30,6 +30,14 @@ __xdata	uint32_t l2_head;
 
 __xdata struct vlan_settings vlan_settings;
 
+// Wait for the TABLE ready
+static void wait_table_ready(void)
+{
+	do {
+		reg_read(RTL837X_TBL_CTRL);
+	} while (SFR_DATA_0 & TBL_EXECUTE);
+}
+
 void port_mirror_set(uint8_t port, __xdata uint16_t rx_pmask, __xdata uint16_t tx_pmask) __banked
 {
 	print_string("\nport_mirror_set called \n");
@@ -183,9 +191,9 @@ int8_t vlan_get(uint16_t vlan) __banked
 		return -1;
 
 	REG_WRITE(RTL837X_TBL_CTRL, vlan >> 8, vlan, TBL_VLAN, TBL_EXECUTE);
-	do {
-		reg_read_m(RTL837X_TBL_CTRL);
-	} while (sfr_data[3] & TBL_EXECUTE);
+
+	wait_table_ready();
+
 	reg_read_m(RTL837x_L2_DATA_OUT_A);
 
 	return 0;
@@ -239,9 +247,9 @@ void vlan_create(void) __banked
 	// Initialize VLAN table with VLAN 1
 	REG_WRITE(RTL837x_TBL_DATA_IN_A, 0x02, (a >> 6) & 0x0f, (a << 2) | (vlan_settings.members >> 8), vlan_settings.members);
 	REG_WRITE(RTL837X_TBL_CTRL, vlan_settings.vlan >> 8, vlan_settings.vlan, TBL_VLAN, TBL_WRITE | TBL_EXECUTE);
-	do {
-		reg_read_m(RTL837X_TBL_CTRL);
-	} while (sfr_data[3] & TBL_EXECUTE);
+
+	wait_table_ready();
+
 	print_string("vlan_create done \n");
 }
 
@@ -265,9 +273,8 @@ void vlan_setup(void) __banked
 	REG_SET(RTL837x_TBL_DATA_IN_A, machine_detected.isRTL8373? 0x0007ffff : 0x0007e3f8);
 
 	REG_SET(RTL837X_TBL_CTRL, 0x00010303);
-	do {
-		reg_read_m(RTL837X_TBL_CTRL);
-	} while (sfr_data[3] & TBL_EXECUTE);
+
+	wait_table_ready();
 
 	// Set PVID 1 for every port. TODO: Skip unused ports!
 	for (uint8_t i = machine.min_port; i <= machine.max_port + 1; i++) {  // Do this also for the CPU port (+1)
@@ -310,9 +317,8 @@ void vlan_setup(void) __banked
 	REG_SET(RTL837x_TBL_DATA_IN_A, machine_detected.isRTL8373? 0x0207ffff : 0x0207e3f8);	// 02: Entry valid, 7...: membership
 
 	REG_SET(RTL837X_TBL_CTRL, 0x00010303);	// Write VLAN 1
-	do {
-		reg_read_m(RTL837X_TBL_CTRL);
-	} while (sfr_data[3] & TBL_EXECUTE);
+
+	wait_table_ready();
 
 #ifdef DEBUG
 	print_string("\nvlan_setup, REG 0x6738: "); print_reg(0x6738);
@@ -372,22 +378,21 @@ uint8_t port_l2_forget(void) __banked
 void port_l2_learned(void) __banked
 {
 	// Whait for any table action to be finished
-	do {
-		reg_read_m(RTL837X_TBL_CTRL);
-	} while (sfr_data[3] & 0x01);
+	wait_table_ready();
+
 	print_string("\n\tMAC\t\tVLAN\ttype\tport\n");
 	__xdata uint16_t entry = 0x0000;
 	__xdata uint16_t first_entry = 0xffff; // Table does not have that many entries
 
 	while (1) {
 		uint8_t port = 0;
+		uint8_t lag;
 		reg_read_m(RTL837x_TBL_DATA_0);
 		REG_WRITE(RTL837x_TBL_DATA_0, sfr_data[0], sfr_data[1],sfr_data[2] | 0xc0, sfr_data[3]);
 
 		REG_WRITE(RTL837X_TBL_CTRL, (entry >> 8) & 0xf, entry, TBL_L2_UNICAST, TBL_EXECUTE);
-		do {
-			reg_read_m(RTL837X_TBL_CTRL);
-		} while (sfr_data[3] & TBL_EXECUTE);
+
+		wait_table_ready();
 
 		reg_read_m(RTL837x_TBL_DATA_0);
 		entry = (((uint16_t)sfr_data[2] & 0x0f) << 8) | sfr_data[3];
@@ -416,13 +421,19 @@ void port_l2_learned(void) __banked
 
 			// type
 			reg_read_m(RTL837x_L2_DATA_OUT_C);
-			if (sfr_data[2] & 0x1)
+			if (sfr_data[1] & 0x1)
 				print_string("\tstatic\t");
 			else
 				print_string("\tlearned\t");
 
 			port |= (sfr_data[3] & 0x3) << 2;
-			print_phys_port(port);
+			lag = port_lag_of(port);
+			if (lag == PORT_LAG_NONE) {
+				print_phys_port(port);
+			} else {
+				print_string("LAG");
+				itoa(lag + 1);
+			}
 		}
 
 		entry++;
@@ -438,17 +449,14 @@ void port_l2_learned(void) __banked
 
 void port_l2mc_set(uint8_t mac_last, __xdata uint16_t vid, __xdata uint16_t pmask) __banked
 {
-	do {
-		reg_read(RTL837X_TBL_CTRL);
-	} while (SFR_DATA_0 & TBL_EXECUTE);
+	wait_table_ready();
 
 	REG_WRITE(RTL837x_TBL_DATA_IN_A, 0xc2, 0x00, 0x00, mac_last);
 	REG_WRITE(RTL837x_TBL_DATA_IN_B, 0x20 | (vid >> 8) | ((pmask & 0x3) << 6), vid, 0x01, 0x80);
 	REG_WRITE(RTL837x_TBL_DATA_IN_C, 0, 0, 0, pmask >> 2);
 	REG_WRITE(RTL837X_TBL_CTRL, 0, 0, TBL_L2_UNICAST, TBL_WRITE | TBL_EXECUTE);
-	do {
-		reg_read(RTL837X_TBL_CTRL);
-	} while (SFR_DATA_0 & TBL_EXECUTE);
+
+	wait_table_ready();
 }
 
 
@@ -930,13 +938,6 @@ static void l2_mgmt_tbl_prepare(void)
 	reg_write_m(RTL837x_TBL_DATA_0);
 }
 
-static void wait_table_ready(void)
-{
-	do {
-		reg_read(RTL837X_TBL_CTRL);
-	} while (SFR_DATA_0 & TBL_EXECUTE);
-}
-
 /** Pin the management MAC to the CPU port; remove_entry deletes it */
 void port_l2_static_mgmt(__xdata uint8_t *mac, __xdata uint16_t vlan, __xdata bool remove_entry) __banked
 {
@@ -963,5 +964,6 @@ void port_l2_static_mgmt(__xdata uint8_t *mac, __xdata uint16_t vlan, __xdata bo
 		// method-0 write: the hardware hashes the key and places the entry
 		REG_WRITE(RTL837X_TBL_CTRL, 0x00, 0x00, TBL_L2_UNICAST, TBL_WRITE | TBL_EXECUTE);
 	}
+
 	wait_table_ready();
 }
diff --git a/rtlplayground.c b/rtlplayground.c
index b3710c76..700df0b8 100644
--- a/rtlplayground.c
+++ b/rtlplayground.c
@@ -89,6 +89,7 @@ volatile __xdata uint32_t ticks;
 volatile __xdata uint8_t sec_counter;
 volatile __xdata uint16_t sleep_ticks;
 __xdata uint8_t stp_clock;
+__xdata uint8_t arp_age_secs;
 extern __xdata struct dhcp_state dhcp_state;
 
 #define STP_TICK_DIVIDER 3
@@ -493,7 +494,6 @@ void print_cmd_prompt(void)
 void isr_ext0(void) __interrupt(0)
 {
 	EX0 = 0;	// Disable interrupt for the moment
-	write_char('X');
 	IT0 = 1;	// Trigger on falling edge of external interrupt
 	EX0 = 1;	// Re-enable interrupt
 }
@@ -501,14 +501,11 @@ void isr_ext0(void) __interrupt(0)
 
 /*
  * External IRQ 1 Service Routine, triggered by the NIC recieving a packet
- * Note that all registers are being put on the STACK because of calling
- * a subroutine (write_char), we shold do better...
  */
 void isr_ext1(void) __interrupt(2)
 {
 	// This flag should only be reset after all packets have been read
 	EX1 = 0;
-	write_char('Y');
 	EX1 = 1;
 }
 
@@ -519,7 +516,6 @@ void isr_ext1(void) __interrupt(2)
 void isr_ext2(void) __interrupt(8)
 {
 	EXIF &= 0xef;	// Clear IRQ flag (bit 7) in EXIF
-	write_char('Z');
 	PCON |= 1; // Enter Idle mode until interrupt occurs
 }
 
@@ -530,7 +526,6 @@ void isr_ext2(void) __interrupt(8)
 void isr_ext3(void) __interrupt(9)
 {
 	EXIF &= 0xdf;	// Clear IRQ flag (bit 6) in EXIF
-	write_char('W');
 }
 
 // Timer2: handles system tick.
@@ -1565,6 +1560,11 @@ void idle(void)
 
 		// Check for button presses once a second
 		handle_button();
+		// Age the ARP cache: uip_arp_timer() expects a 10 s cadence
+		if (++arp_age_secs >= 10) {
+			arp_age_secs = 0;
+			uip_arp_timer();
+		}
 
 #ifdef DEBUG
 		print_sfr_data();