diff --git a/templates/hostapd/advanced.php b/templates/hostapd/advanced.php
index fa46009f..1aa9020d 100644
--- a/templates/hostapd/advanced.php
+++ b/templates/hostapd/advanced.php
@@ -11,49 +11,71 @@
       </div>
     </div>
 
+    <!-- static IP settings -->
     <div class="row" id="bridgeStaticIpSection" style="display: <?php echo $arrHostapdConf['BridgedEnable'] == 1 ? 'block' : 'none' ?>;">
       <div class="col-md-12 mb-3">
         <div class="card">
           <div class="card-body">
-            <h6 class="card-title"><?php echo _("Bridge network settings"); ?></h6>
+            <h6 class="card-title"><?php echo _("Bridge Network Configuration"); ?></h6>
             <p class="text-muted small mb-3">
-              <?php echo _("Configure a static IP address for the <code>br0</code> interface to maintain connectivity during bridged mode. Leave blank to use DHCP (not recommended)."); ?>
+              <?php echo _("Configure a static IP address for the br0 interface to maintain connectivity during bridge mode activation. Leave blank to use DHCP (not recommended)."); ?>
             </p>
             
             <div class="row g-3">
               <div class="col-md-6">
                 <label for="bridgeStaticIp" class="form-label"><?php echo _("Static IP Address"); ?></label>
-                <input type="text" class="form-control ip_address" id="bridgeStaticIp" name="bridgeStaticIp" 
-                       value="<?php echo htmlspecialchars($arrHostapdConf['BridgeStaticIP'] ?? '', ENT_QUOTES); ?>" 
-                       placeholder="192.168.1.100" />
+                <div class="input-group has-validation">
+                  <input type="text" class="form-control ip_address" id="bridgeStaticIp" name="bridgeStaticIp"
+                         value="<?php echo htmlspecialchars($arrHostapdConf['BridgeStaticIP'] ?? '', ENT_QUOTES); ?>"
+                         placeholder="192.168.1.100" />
+                  <div class="invalid-feedback">
+                    <?php echo _("Please enter a valid IPv4 address"); ?>
+                  </div>
+                </div>
                 <div class="form-text"><?php echo _("Example: 192.168.1.100"); ?></div>
               </div>
               
               <div class="col-md-6">
                 <label for="bridgeNetmask" class="form-label"><?php echo _("Netmask / CIDR"); ?></label>
-                <input type="text" class="form-control" id="bridgeNetmask" name="bridgeNetmask" 
-                       value="<?php echo htmlspecialchars($arrHostapdConf['BridgeNetmask'] ?? '24', ENT_QUOTES); ?>" 
-                       placeholder="24" />
+                <div class="input-group has-validation">
+                  <input type="text" class="form-control" id="bridgeNetmask" name="bridgeNetmask"
+                         value="<?php echo htmlspecialchars($arrHostapdConf['BridgeNetmask'] ?? '24', ENT_QUOTES); ?>"
+                         placeholder="24" />
+                  <div class="invalid-feedback">
+                    <?php echo _("Please enter a valid netmask"); ?>
+                  </div>
+                </div>
                 <div class="form-text"><?php echo _("CIDR notation (e.g., 24 for 255.255.255.0)"); ?></div>
               </div>
               
               <div class="col-md-6">
                 <label for="bridgeGateway" class="form-label"><?php echo _("Gateway"); ?></label>
-                <input type="text" class="form-control ip_address" id="bridgeGateway" name="bridgeGateway" 
-                       value="<?php echo htmlspecialchars($arrHostapdConf['BridgeGateway'] ?? '', ENT_QUOTES); ?>" 
-                       placeholder="192.168.1.1" />
+                <div class="input-group has-validation">
+                  <input type="text" class="form-control ip_address" id="bridgeGateway" name="bridgeGateway"
+                         value="<?php echo htmlspecialchars($arrHostapdConf['BridgeGateway'] ?? '', ENT_QUOTES); ?>"
+                         placeholder="192.168.1.1" />
+                  <div class="invalid-feedback">
+                    <?php echo _("Please enter a valid IPv4 address"); ?>
+                  </div>
+                </div>
                 <div class="form-text"><?php echo _("Your router's IP address"); ?></div>
               </div>
-              
+
               <div class="col-md-6">
                 <label for="bridgeDNS" class="form-label"><?php echo _("DNS Server"); ?></label>
-                <input type="text" class="form-control ip_address" id="bridgeDNS" name="bridgeDNS" 
-                       value="<?php echo htmlspecialchars($arrHostapdConf['BridgeDNS'] ?? '', ENT_QUOTES); ?>" 
-                       placeholder="192.168.1.1" />
+                <div class="input-group has-validation">
+                  <input type="text" class="form-control ip_address" id="bridgeDNS" name="bridgeDNS"
+                         value="<?php echo htmlspecialchars($arrHostapdConf['BridgeDNS'] ?? '', ENT_QUOTES); ?>"
+                         placeholder="192.168.1.1" />
+                  <div class="invalid-feedback">
+                    <?php echo _("Please enter a valid IPv4 address"); ?>
+                  </div>
+                </div>
                 <div class="form-text"><?php echo _("Usually same as gateway"); ?></div>
               </div>
             </div>
-              </div>
+
+          </div>
         </div>
       </div>
     </div>