diff --git a/CMakeModules/DownloadExternals.cmake b/CMakeModules/DownloadExternals.cmake
index e65827290d..3e9bc26d69 100644
--- a/CMakeModules/DownloadExternals.cmake
+++ b/CMakeModules/DownloadExternals.cmake
@@ -133,7 +133,7 @@ function(download_qt_configuration prefix_out target host type arch arch_path ba
         set(install_args ${install_args} install-tool --outputdir ${base_path} ${host} desktop ${target})
     else()
         set(prefix "${base_path}/${target}/${arch_path}")
-        set(install_args ${install_args} install-qt --outputdir ${base_path} ${host} ${type} ${target} ${arch} -m qtbase)
+        set(install_args ${install_args} install-qt --outputdir ${base_path} ${host} ${type} ${target} ${arch} -m qt_base)
 
         if (YUZU_USE_QT_MULTIMEDIA)
             set(install_args ${install_args} qtmultimedia)
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/dialogs/NetPlayDialog.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/dialogs/NetPlayDialog.kt
index ede2cfafa4..cd3e9a4474 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/dialogs/NetPlayDialog.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/dialogs/NetPlayDialog.kt
@@ -34,6 +34,7 @@ import org.yuzu.yuzu_emu.databinding.ItemBanListBinding
 import org.yuzu.yuzu_emu.databinding.ItemButtonNetplayBinding
 import org.yuzu.yuzu_emu.databinding.ItemTextNetplayBinding
 import org.yuzu.yuzu_emu.features.settings.model.StringSetting
+import org.yuzu.yuzu_emu.network.NetDataValidators
 import org.yuzu.yuzu_emu.network.NetPlayManager
 import org.yuzu.yuzu_emu.utils.CompatUtils
 import org.yuzu.yuzu_emu.utils.GameHelper
@@ -102,8 +103,16 @@ class NetPlayDialog(context: Context) : BottomSheetDialog(context) {
                         dismiss()
                     }
                     btnLobbyBrowser.setOnClickListener {
-                        LobbyBrowser(context).show()
-                        dismiss()
+                        if (!NetDataValidators.username()) {
+                            Toast.makeText(
+                                context,
+                                R.string.multiplayer_nickname_invalid,
+                                Toast.LENGTH_LONG
+                            ).show()
+                        } else {
+                            LobbyBrowser(context).show()
+                            dismiss()
+                        }
                     }
                 }
             }
@@ -368,7 +377,7 @@ class NetPlayDialog(context: Context) : BottomSheetDialog(context) {
             )
         ) {
             override fun validate(s: String): Boolean {
-                return s.length in 3..20
+                return NetDataValidators.roomName(s)
             }
         }
 
@@ -378,7 +387,7 @@ class NetPlayDialog(context: Context) : BottomSheetDialog(context) {
             context.getString(R.string.multiplayer_required)
         ) {
             override fun validate(s: String): Boolean {
-                return s.isNotEmpty()
+                return NetDataValidators.notEmpty(s)
             }
         }
 
@@ -388,12 +397,7 @@ class NetPlayDialog(context: Context) : BottomSheetDialog(context) {
             context.getString(R.string.multiplayer_token_required)
         ) {
             override fun validate(s: String): Boolean {
-                if (s != context.getString(R.string.multiplayer_public_visibility)) {
-                    return true;
-                }
-
-                val token = StringSetting.WEB_TOKEN.getString()
-                return token.matches(Regex("[a-z]{48}"))
+                return NetDataValidators.roomVisibility(s, context)
             }
         }
 
@@ -403,12 +407,7 @@ class NetPlayDialog(context: Context) : BottomSheetDialog(context) {
             context.getString(R.string.multiplayer_ip_error)
         ) {
             override fun validate(s: String): Boolean {
-                return try {
-                    InetAddress.getByName(s)
-                    s.length >= 7
-                } catch (_: Exception) {
-                    false
-                }
+                return NetDataValidators.ipAddress(s)
             }
         }
 
@@ -418,7 +417,7 @@ class NetPlayDialog(context: Context) : BottomSheetDialog(context) {
             context.getString(R.string.multiplayer_username_error)
         ) {
             override fun validate(s: String): Boolean {
-                return s.length in 4..20
+                return NetDataValidators.username(s)
             }
         }
 
@@ -428,7 +427,7 @@ class NetPlayDialog(context: Context) : BottomSheetDialog(context) {
             context.getString(R.string.multiplayer_port_error)
         ) {
             override fun validate(s: String): Boolean {
-                return s.toIntOrNull() in 1..65535
+                return NetDataValidators.port(s)
             }
         }
 
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt
index ab35a9180c..a269cab254 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/model/view/SettingsItem.kt
@@ -20,6 +20,7 @@ import org.yuzu.yuzu_emu.features.settings.model.IntSetting
 import org.yuzu.yuzu_emu.features.settings.model.LongSetting
 import org.yuzu.yuzu_emu.features.settings.model.ShortSetting
 import org.yuzu.yuzu_emu.features.settings.model.StringSetting
+import org.yuzu.yuzu_emu.network.NetDataValidators
 import org.yuzu.yuzu_emu.utils.GpuDriverHelper
 import org.yuzu.yuzu_emu.utils.NativeConfig
 
@@ -300,9 +301,7 @@ abstract class SettingsItem(
                         val chars = "abcdefghijklmnopqrstuvwxyz"
                         (1..48).map { chars.random() }.joinToString("")
                     },
-                    validator = { s ->
-                        s?.matches(Regex("[a-z]{48}")) == true
-                    },
+                    validator = NetDataValidators::token,
                     errorId = R.string.multiplayer_token_error
                 )
             )
@@ -312,9 +311,7 @@ abstract class SettingsItem(
                     StringSetting.WEB_USERNAME,
                     titleId = R.string.web_username,
                     descriptionId = R.string.web_username_description,
-                    validator = { s ->
-                        s?.length in 4..20
-                    },
+                    validator = NetDataValidators::username,
                     errorId = R.string.multiplayer_username_error
                 )
             )
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsDialogFragment.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsDialogFragment.kt
index e50ebe50f4..aa17d05e34 100644
--- a/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsDialogFragment.kt
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/features/settings/ui/SettingsDialogFragment.kt
@@ -154,8 +154,6 @@ class SettingsDialogFragment : DialogFragment(), DialogInterface.OnClickListener
                     stringInputBinding.generate.setOnClickListener {
                         stringInputBinding.editText.setText(onGenerate())
                     }
-                } else {
-                    stringInputBinding.generate.isVisible = false
                 }
 
                 val validator = item.validator
@@ -179,8 +177,9 @@ class SettingsDialogFragment : DialogFragment(), DialogInterface.OnClickListener
                         }
 
                         override fun afterTextChanged(s: Editable?) {
-                            stringInputBinding.editText.error =
-                                if (validator(s.toString())) null else requireContext().getString(item.errorId)
+                            val isValid = validator(s.toString())
+                            stringInputBinding.editTextLayout.isErrorEnabled = !isValid
+                            stringInputBinding.editTextLayout.error = if (isValid) null else requireContext().getString(item.errorId)
                         }
                     }
 
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/network/NetDataValidators.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/network/NetDataValidators.kt
new file mode 100644
index 0000000000..b3edf35d8e
--- /dev/null
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/network/NetDataValidators.kt
@@ -0,0 +1,56 @@
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package org.yuzu.yuzu_emu.network
+
+import android.content.Context
+import org.yuzu.yuzu_emu.R
+import org.yuzu.yuzu_emu.features.settings.model.StringSetting
+import java.net.InetAddress
+
+object NetDataValidators {
+    fun roomName(s: String): Boolean {
+        return s.length in 3..20
+    }
+
+    fun notEmpty(s: String): Boolean {
+        return s.isNotEmpty()
+    }
+
+    fun token(s: String?): Boolean {
+        return s?.matches(Regex("[a-z]{48}")) == true
+    }
+
+    fun token(): Boolean {
+        return token(StringSetting.WEB_TOKEN.getString())
+    }
+
+    fun roomVisibility(s: String, context: Context): Boolean {
+        if (s != context.getString(R.string.multiplayer_public_visibility)) {
+            return true;
+        }
+
+        return token()
+    }
+
+    fun ipAddress(s: String): Boolean {
+        return try {
+            InetAddress.getByName(s)
+            s.length >= 7
+        } catch (_: Exception) {
+            false
+        }
+    }
+
+    fun username(s: String?): Boolean {
+        return s?.matches(Regex("^[ a-zA-Z0-9._-]{4,20}$")) == true
+    }
+
+    fun username(): Boolean {
+        return username(StringSetting.WEB_USERNAME.getString())
+    }
+
+    fun port(s: String): Boolean {
+        return s.toIntOrNull() in 1..65535
+    }
+}
\ No newline at end of file
diff --git a/src/android/app/src/main/res/layout/dialog_edit_text.xml b/src/android/app/src/main/res/layout/dialog_edit_text.xml
index 3612f46eae..bc7864a395 100644
--- a/src/android/app/src/main/res/layout/dialog_edit_text.xml
+++ b/src/android/app/src/main/res/layout/dialog_edit_text.xml
@@ -27,6 +27,7 @@
         android:layout_height="wrap_content"
         android:layout_marginTop="15dp"
         android:text="@string/generate"
+        android:visibility="gone"
         app:layout_constraintEnd_toEndOf="@+id/edit_text_layout"
         app:layout_constraintTop_toBottomOf="@+id/edit_text_layout" />
 
diff --git a/src/android/app/src/main/res/values/strings.xml b/src/android/app/src/main/res/values/strings.xml
index e611e66c1f..3814105ea0 100644
--- a/src/android/app/src/main/res/values/strings.xml
+++ b/src/android/app/src/main/res/values/strings.xml
@@ -148,18 +148,18 @@
     <string name="multiplayer_join_room_failed">Failed to join room</string>
     <string name="multiplayer_name_invalid">Name is too short</string>
     <string name="multiplayer_address_invalid">Invalid address</string>
-    <string name="multiplayer_port_invalid">Invalid port!</string>
+    <string name="multiplayer_port_invalid">Invalid port</string>
     <string name="multiplayer_exit_room">Exit Room</string>
     <string name="multiplayer_network_error">Network error</string>
     <string name="multiplayer_lost_connection">Lost connection</string>
-    <string name="multiplayer_name_collision">Name collision</string>
+    <string name="multiplayer_name_collision">Username already taken</string>
     <string name="multiplayer_mac_collision">MAC Address collision</string>
     <string name="multiplayer_console_id_collision">Console ID collision</string>
     <string name="multiplayer_wrong_version">Wrong version</string>
     <string name="multiplayer_wrong_password">Wrong password</string>
     <string name="multiplayer_could_not_connect">Could not connect</string>
     <string name="multiplayer_room_is_full">Room is full</string>
-    <string name="multiplayer_host_banned">Host banned</string>
+    <string name="multiplayer_host_banned">You are banned from this room</string>
     <string name="multiplayer_permission_denied">Permission denied</string>
     <string name="multiplayer_no_such_user">No such user</string>
     <string name="multiplayer_already_in_room">Already in room</string>
@@ -221,7 +221,8 @@
     <string name="multiplayer_required">Required</string>
     <string name="multiplayer_token_required">Web Token required, go to Advanced Settings -> System -> Network</string>
     <string name="multiplayer_ip_error">Invalid IP format</string>
-    <string name="multiplayer_username_error">Must be between 4–20 characters</string>
+    <string name="multiplayer_username_error">Must be between 4–20 characters, and contain alphanumeric characters, periods, dashes, underscores, and spaces only</string>
+    <string name="multiplayer_nickname_invalid">Username invalid, ensure it is set properly in System -> Network</string>
     <string name="multiplayer_token_error">Must be 48 characters, and lowercase a-z only</string>
     <string name="multiplayer_port_error">Must be between 1 and 65535</string>
     <string name="cancel">Cancel</string>
@@ -467,7 +468,7 @@
     <string name="web_token">Web Token</string>
     <string name="web_token_description">Web token used for creating public lobbies. It is a 48-character string containing only lowercase a-z.</string>
     <string name="web_username">Web Username</string>
-    <string name="web_username_description">Username to be shown in multiplayer lobbies. It must be 4–20 characters.</string>
+    <string name="web_username_description">Username to be shown in multiplayer lobbies. It must be 4–20 characters, containing only alphanumeric characters, dashes, periods, underscores, and spaces.</string>
     <string name="network">Network</string>
 
     <!-- Graphics settings strings -->