diff --git a/html/config.js b/html/config.js
index 0cb4bf1..dd8512b 100644
--- a/html/config.js
+++ b/html/config.js
@@ -1,35 +1,84 @@
 var configInterval = Number();
 var configuration = [];
 const conf_cmds = [
-  /ip\s+(\d{1,3}\.){3}\d{1,3}/, /gw\s+(\d{1,3}\.){3}\d{1,3}/, /netmask\s+(\d{1,3}\.){3}\d{1,3}/,
-  /eee(\s+\d)?\s+(on|off)/, /mirror(\s+(\d|10))(\s+(\d|10)(t|r)?)+/, /vlan\s+(\d{1,4})(\s+(\d|10)(t|u)?)+/
+  /^ip\s+(\d{1,3}\.){3}\d{1,3}$/,
+  /^ip\s+dhcp$/,
+  /^gw\s+(\d{1,3}\.){3}\d{1,3}$/,
+  /^netmask\s+(\d{1,3}\.){3}\d{1,3}$/,
+  /^syslog\s+(on|off)$/,
+  /^syslog\s+ip\s+(\d{1,3}\.){3}\d{1,3}$/,
+  /^passwd\s+\S+$/,
+  /^vlan\s+\d{1,4}\s+d$/,
+  /^vlan\s+\d{1,4}\s+mgmt$/,
+  /^vlan\s+\d{1,4}(\s+[a-zA-Z]\w*)?(\s+\d{1,2}[tu]?)+$/,
+  /^pvid\s+\d{1,2}\s+\d{1,4}$/,
+  /^ingress(\s+\d{1,2}[tua])+$/,
+  /^ingress\s+[tua]$/,
+  /^port\s+\d{1,2}\s+name\s+\S+$/,
+  /^eee(\s+\d{1,2})?\s+(on|off)$/,
+  /^mirror(\s+\d{1,2})(\s+\d{1,2}[tr]?)+$/,
+  /^lag\s+\d(\s+\d{1,2})+$/,
+  /^laghash\s+\d(\s+\w+)+$/,
+  /^isolate\s+\d{1,2}(\s+(off|\d{1,2}))+$/,
+  /^stp\s+(on|off)$/,
+  /^igmp\s+(on|off)$/,
+  /^mtu\s+\d{1,2}\s+\d+$/,
+  /^bw\s+(in|out)\s+\d{1,2}\s+\S+$/,
 ];
 const conf_overwrite = [
-  /ip/, /gw/, /netmask/, /eee\s+\w+/, /eee(\s+\w)/, /mirror/, /vlan\s+(\d{1,4})/
+  /^ip\b/,
+  /^gw\b/,
+  /^netmask\b/,
+  /^syslog\s+ip\b/,
+  /^syslog\b/,
+  /^passwd\b/,
+  /^vlan\s+\d{1,4}\s+mgmt$/,
+  /^vlan\s+\d{1,4}(?!\s+mgmt\b)/,
+  /^pvid\s+\d{1,2}\b/,
+  /^ingress\b/,
+  /^port\s+\d{1,2}\s+name\b/,
+  /^eee\s+\d{1,2}\b/,
+  /^eee\b/,
+  /^mirror\b/,
+  /^lag\s+\d+\b/,
+  /^laghash\b/,
+  /^isolate\s+\d{1,2}\b/,
+  /^stp\b/,
+  /^igmp\b/,
+  /^mtu\s+\d{1,2}\b/,
+  /^bw\s+(in|out)\s+\d{1,2}\b/,
 ];
 
 function parseConf(s){
   var a = s.split(/\r\n|\n/);
-    for (var l = 0; l < a.length; l++) {
-      if (!a[l].length || a[l] == "\n" || a[l] == "\r\n")
-        continue;
-      console.log(l + ' --> ' + a[l]);
-      var ignore = true;
-      for (const x of conf_cmds)
-        if (x.test(a[l])) ignore = false;
-      if (ignore) continue;
-      for (const x of conf_overwrite) {
-        if (x.test(a[l])) {
-          console.log("Match ", x, " to ", a[l]);
-          m = a[l].match(x);
-          console.log("Starts with ", m[0]);
-          configuration = configuration.filter(item => !(item.startsWith(m[0])));
-        }
-      }
-      configuration.push(a[l]);
+  for (var l = 0; l < a.length; l++) {
+    var line = a[l].trim().replace(/\s+/g, ' ');
+    if (!line.length) continue;
+    const deleteMatch = line.match(/^vlan\s+(\d{1,4})\s+d$/);
+    if (deleteMatch) {
+      const prefix = "vlan " + deleteMatch[1] + " ";
+      configuration = configuration.filter(c =>
+        c !== "vlan " + deleteMatch[1] && !c.startsWith(prefix));
+      continue;
     }
-    console.log("Configuration now:");
-    for (const x of configuration) { console.log(x); }
+    console.log(l + ' --> ' + line);
+    var ignore = true;
+    for (const x of conf_cmds)
+      if (x.test(line)) { ignore = false; break; }
+    if (ignore) continue;
+    for (const x of conf_overwrite) {
+      if (x.test(line)) {
+        let m = line.match(x);
+        let matchStr = m[0];
+        configuration = configuration.filter(item =>
+          !(item === matchStr || item.startsWith(matchStr + " ")));
+        break;
+      }
+    }
+    configuration.push(line);
+  }
+  console.log("Configuration now:");
+  for (const x of configuration) { console.log(x); }
 }
 
 async function fetchConfig() {
diff --git a/html/system.js b/html/system.js
index 322e057..a90a173 100644
--- a/html/system.js
+++ b/html/system.js
@@ -1,4 +1,5 @@
 var systemInterval = Number();
+var isSaving = false;
 const ips = ["ip", "netmask", "gw"];
 
 function checkIp(ip) {
@@ -43,35 +44,39 @@ async function cmdSub() {
 
 
 async function sendConfig(c) {
-    const form = new FormData();
+  if (isSaving) return;
+  isSaving = true;
+  clearInterval(systemInterval);
+  const form = new FormData();
   form.append("MAX_FILE_SIZE", "4096");
-  form.append("configuration", new Blob([c], {type: "application/octet-stream"}));
+  form.append("configuration", new Blob([c], {type: "application/octet-stream"}), "config.txt");
   try {
     const response = await fetch('/config', {
       method: 'POST',
       body: form
     });
     console.log('Completed!', response);
+    try {
+      await fetch('/cmd_log_clear', { method: 'GET' });
+    } catch(e) {}
   } catch(err) {
     console.error(`Error: ${err}`);
+  } finally {
+    isSaving = false;
+    systemInterval = setInterval(fetchIP, 1000);
   }
 }
 
 
 async function flashSave() {
-  fetchConfig().then((s) => {
-    parseConf(s);
-    fetchCmdLog().then((s) => {
-      parseConf(s);
-      var body = "";
-      for (const x of configuration) { body = body + x + "\n"; }
-      console.log("CONFIGURATION to save: ", body);
-      sendConfig(body);
-    });
-  });
-  setTimeout(() => {
-      fetchIP();
-  }, 500);
+  configuration = [];
+  const savedConfig = await fetchConfig();
+  const cmdLog = await fetchCmdLog();
+  if (savedConfig) parseConf(savedConfig);
+  if (cmdLog) parseConf(cmdLog);
+  const body = configuration.join('\n') + '\n';
+  console.log("CONFIGURATION to save: ", body);
+  await sendConfig(body);
 }
 
 async function flashStartupSave() {