diff --git a/lib/SvelteUi/app/src/lib/ConfigurationPanel.svelte b/lib/SvelteUi/app/src/lib/ConfigurationPanel.svelte
index c76f2959..367aca08 100644
--- a/lib/SvelteUi/app/src/lib/ConfigurationPanel.svelte
+++ b/lib/SvelteUi/app/src/lib/ConfigurationPanel.svelte
@@ -135,12 +135,13 @@
     <div class="grid xl:grid-cols-4 lg:grid-cols-2 md:grid-cols-2">
         <div class="cnt">
             <strong class="text-sm">General</strong>
+            <a href="https://github.com/UtilitechAS/amsreader-firmware/wiki/General-configuration" target="_blank" class="float-right"><HelpIcon/></a>
             <input type="hidden" name="g" value="true"/>
             <div class="my-1">
                 <div class="flex">
                     <div>
                         Hostname<br/>
-                        <input name="gh" bind:value={configuration.g.h} type="text" class="in-f w-full"/>
+                        <input name="gh" bind:value={configuration.g.h} type="text" class="in-f w-full" pattern="[A-Za-z0-9-]+"/>
                     </div>
                     <div>
                         Time zone<br/>
@@ -554,6 +555,7 @@
         {/if}
         <div class="cnt">
             <strong class="text-sm">User interface</strong>
+            <a href="https://github.com/UtilitechAS/amsreader-firmware/wiki/User-interface" target="_blank" class="float-right"><HelpIcon/></a>
             <input type="hidden" name="u" value="true"/>
             <div class="flex flex-wrap">
                 <div class="w-1/2">
diff --git a/lib/SvelteUi/app/vite.config.js b/lib/SvelteUi/app/vite.config.js
index 9bcb4a69..a862d15f 100644
--- a/lib/SvelteUi/app/vite.config.js
+++ b/lib/SvelteUi/app/vite.config.js
@@ -17,18 +17,18 @@ export default defineConfig({
   plugins: [svelte()],
   server: {
     proxy: {
-      "/data.json": "http://192.168.233.229",
-      "/energyprice.json": "http://192.168.233.229",
-      "/dayplot.json": "http://192.168.233.229",
-      "/monthplot.json": "http://192.168.233.229",
-      "/temperature.json": "http://192.168.233.229",
-      "/sysinfo.json": "http://192.168.233.229",
-      "/configuration.json": "http://192.168.233.229",
-      "/tariff.json": "http://192.168.233.229",
-      "/save": "http://192.168.233.229",
-      "/reboot": "http://192.168.233.229",
-      "/configfile": "http://192.168.233.229",
-      "/upgrade": "http://192.168.233.229"
+      "/data.json": "http://192.168.233.244",
+      "/energyprice.json": "http://192.168.233.244",
+      "/dayplot.json": "http://192.168.233.244",
+      "/monthplot.json": "http://192.168.233.244",
+      "/temperature.json": "http://192.168.233.244",
+      "/sysinfo.json": "http://192.168.233.244",
+      "/configuration.json": "http://192.168.233.244",
+      "/tariff.json": "http://192.168.233.244",
+      "/save": "http://192.168.233.244",
+      "/reboot": "http://192.168.233.244",
+      "/configfile": "http://192.168.233.244",
+      "/upgrade": "http://192.168.233.244"
     }
   }
 })