diff --git a/tools/chatgui-android/app/src/main/java/com/utun/chat/data/ChatRepository.kt b/tools/chatgui-android/app/src/main/java/com/utun/chat/data/ChatRepository.kt
index 25e7612e..68885c07 100644
--- a/tools/chatgui-android/app/src/main/java/com/utun/chat/data/ChatRepository.kt
+++ b/tools/chatgui-android/app/src/main/java/com/utun/chat/data/ChatRepository.kt
@@ -100,9 +100,10 @@ data class MemberDetail(val nodeId: Long, val name: String = "",
 
 data class MemberAddr(val family: Int = 0, val protocol: String = "", val address: String = "",
                       val port: Int = 0, val socketId: Int = 0, val addrType: Int = 0, val rtt: Int = 0) {
-    val roleLabel: String get() = when (addrType) {
-        0 -> AppLanguage.text(R.string.address_local); 1 -> AppLanguage.text(R.string.address_public)
-        2 -> "nat_eim"; 3 -> "nat_strict"; 4 -> "nat"; else -> "?$addrType"
+    val roleLabelRes: Int get() = when (addrType) {
+        0 -> R.string.address_local; 1 -> R.string.address_public
+        2 -> R.string.address_nat_eim; 3 -> R.string.address_nat_dependent; 4 -> R.string.address_nat
+        5 -> R.string.address_contact; else -> R.string.address_unknown
     }
 }
 
diff --git a/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/MemberListScreen.kt b/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/MemberListScreen.kt
index eab1fadd..ab8d6e4b 100644
--- a/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/MemberListScreen.kt
+++ b/tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/MemberListScreen.kt
@@ -44,7 +44,6 @@ import androidx.compose.ui.unit.sp
 import com.utun.chat.data.Channel
 import com.utun.chat.data.ChatMember
 import com.utun.chat.data.MemberDetail
-import com.utun.chat.data.MemberAddr
 import com.utun.chat.data.MemberLinks
 import com.utun.chat.data.LinkStatus
 import com.utun.chat.data.LocalSocketState
@@ -281,9 +280,7 @@ private fun MemberListItem(
 fun formatAddr(addr: String): String {
     if (addr.isEmpty() || addr == "?") return addr
     val trimmed = addr.trim('[', ']')
-    if (trimmed.all { it == '0' || it == ':' }) return "[::]"
-    if (trimmed == "::") return "[::]"
-    return trimmed
+    return if (':' in trimmed) "[$trimmed]" else trimmed
 }
 
 @Composable
@@ -297,6 +294,14 @@ private fun MemberDetailCard(
     onConnect: () -> Unit,
     onEdit: () -> Unit
 ) {
+    LaunchedEffect(detail.channelId, detail.nodeId, detail.addresses, isSelf) {
+        Log.d("utun-gui", "Member detail: channel=${detail.channelId} node=${detail.nodeId} self=$isSelf " +
+            "addresses=${detail.addresses.size} endpoints=" + detail.addresses.joinToString { a ->
+                "sock${a.socketId} ${a.protocol} ${formatAddr(a.address)}:${a.port} type=${a.addrType}"
+            })
+    }
+    // У каждого участника своя прокрутка: прежний offset не должен прятать заголовок нового.
+    val scrollState = key(detail.channelId, detail.nodeId) { rememberScrollState() }
     Card(
         modifier = Modifier
             .fillMaxWidth()
@@ -309,7 +314,7 @@ private fun MemberDetailCard(
         ),
         elevation = CardDefaults.cardElevation(defaultElevation = 4.dp)
     ) {
-        Column(modifier = Modifier.padding(12.dp).verticalScroll(rememberScrollState())) {
+        Column(modifier = Modifier.verticalScroll(scrollState).padding(12.dp)) {
             Row(verticalAlignment = Alignment.CenterVertically) {
                 UserAvatar(detail.channelId, detail.nodeId, detail.name)
                 Spacer(Modifier.width(8.dp))
@@ -364,9 +369,19 @@ private fun MemberDetailCard(
                     Text(stringResource(R.string.member_inviter, inviter), fontSize = 13.sp, lineHeight = 16.sp,
                          color = MaterialTheme.colorScheme.onSurface)
                 }
-                if (!isSelf) TextButton(onClick = onConnect, enabled = !detail.directUp) { Text(stringResource(R.string.connect)) }
-                TextButton(onClick = onEdit, enabled = canEdit) { Text(stringResource(R.string.edit)) }
-                TextButton(onClick = onFiles) { Text(stringResource(R.string.files_member)) }
+            }
+
+            // Кнопки не отнимают ширину у имени и инвайтера, особенно на узком экране.
+            Row(Modifier.fillMaxWidth(), verticalAlignment = Alignment.CenterVertically) {
+                if (!isSelf) TextButton(onClick = onConnect, enabled = !detail.directUp, modifier = Modifier.weight(1f)) {
+                    Text(stringResource(R.string.connect))
+                }
+                TextButton(onClick = onEdit, enabled = canEdit, modifier = Modifier.weight(1f)) {
+                    Text(stringResource(R.string.edit))
+                }
+                TextButton(onClick = onFiles, modifier = Modifier.weight(1f)) {
+                    Text(stringResource(R.string.files_member))
+                }
             }
 
             Spacer(Modifier.height(4.dp))
@@ -406,7 +421,7 @@ private fun MemberDetailCard(
                             Box(Modifier.size(8.dp).clip(CircleShape).background(dot))
                             Spacer(Modifier.width(6.dp))
                             Text(
-                                text = "[${sk.linksUp}/${sk.linksDown}]  ${sk.protocol}  ${sk.ifName}  ${sk.bindIp}:${sk.port}",
+                                text = "[${sk.linksUp}/${sk.linksDown}]  ${sk.protocol}  ${sk.ifName}  ${formatAddr(sk.bindIp)}:${sk.port}",
                                 fontFamily = FontFamily.Monospace,
                                 fontSize = 13.sp,
                                 color = MaterialTheme.colorScheme.onSurface
@@ -420,12 +435,14 @@ private fun MemberDetailCard(
                     Text(stringResource(R.string.addresses), fontSize = 13.sp, fontWeight = FontWeight.Medium)
                     detail.addresses.forEachIndexed { idx, a ->
                         Text(
-                            text = "[sock${a.socketId}] ${a.protocol} ${a.address}:${a.port} ${a.roleLabel}",
+                            text = "${formatAddr(a.address)}:${a.port}",
                             fontFamily = FontFamily.Monospace,
                             fontSize = 13.sp,
                             lineHeight = 15.sp,
                             color = MaterialTheme.colorScheme.onSurface
                         )
+                        Text("[sock${a.socketId}] ${a.protocol} · ${stringResource(a.roleLabelRes, a.addrType)}",
+                            fontSize = 12.sp, lineHeight = 15.sp, color = MaterialTheme.colorScheme.onSurfaceVariant)
                         if (idx < detail.addresses.lastIndex) Spacer(Modifier.height(8.dp))
                     }
                 }
diff --git a/tools/chatgui-android/app/src/main/res/values-ru/strings.xml b/tools/chatgui-android/app/src/main/res/values-ru/strings.xml
index e5d56f61..63b76696 100644
--- a/tools/chatgui-android/app/src/main/res/values-ru/strings.xml
+++ b/tools/chatgui-android/app/src/main/res/values-ru/strings.xml
@@ -340,6 +340,11 @@
     <string name="connection_connecting">"Подключение"</string>
     <string name="address_local">"локальный"</string>
     <string name="address_public">"публичный"</string>
+    <string name="address_nat_eim">"NAT EIM"</string>
+    <string name="address_nat_dependent">"зависимый NAT"</string>
+    <string name="address_nat">"NAT"</string>
+    <string name="address_contact">"требуется предварительный контакт"</string>
+    <string name="address_unknown">"неизвестный (%1$d)"</string>
     <string name="file_save_failed">"Не удалось сохранить файл"</string>
     <string name="transfer_key_confirm">"Передать приватный ключ канала участнику «%1$s»?\n\nКлюч передаётся зашифрованным и подписанным. Получатель станет совладельцем и сможет управлять участниками."</string>
     <string name="call_stats">"Буфер: %1$s мс · Запас: %2$s мс\nЗа 10 с: минимум %3$s · максимум %4$s мс\nСкорость: %5$s× · RTT: %6$s мс\nПотери буфера: %7$s · Недостачи: %8$s"</string>
diff --git a/tools/chatgui-android/app/src/main/res/values/strings.xml b/tools/chatgui-android/app/src/main/res/values/strings.xml
index 1324969d..e09b866d 100644
--- a/tools/chatgui-android/app/src/main/res/values/strings.xml
+++ b/tools/chatgui-android/app/src/main/res/values/strings.xml
@@ -341,6 +341,11 @@
     <string name="connection_connecting">"CONNECTING"</string>
     <string name="address_local">"local"</string>
     <string name="address_public">"public"</string>
+    <string name="address_nat_eim">"NAT EIM"</string>
+    <string name="address_nat_dependent">"dependent NAT"</string>
+    <string name="address_nat">"NAT"</string>
+    <string name="address_contact">"contact required"</string>
+    <string name="address_unknown">"unknown (%1$d)"</string>
     <string name="file_save_failed">"Could not save file"</string>
     <string name="transfer_key_confirm">"Send the channel private key to “%1$s”?\n\nThe key is transferred encrypted and signed. The recipient will become a co-owner and will be able to manage members."</string>
     <string name="call_stats">"Buffer: %1$s ms · Reserve: %2$s ms\nOver 10 s: min %3$s · max %4$s ms\nSpeed: %5$s× · RTT: %6$s ms\nBuffer drops: %7$s · Underruns: %8$s"</string>
diff --git a/tools/chatgui-android/app/src/test/java/com/utun/chat/ui/screens/MemberAddressFormatTest.kt b/tools/chatgui-android/app/src/test/java/com/utun/chat/ui/screens/MemberAddressFormatTest.kt
new file mode 100644
index 00000000..dad0aef0
--- /dev/null
+++ b/tools/chatgui-android/app/src/test/java/com/utun/chat/ui/screens/MemberAddressFormatTest.kt
@@ -0,0 +1,22 @@
+package com.utun.chat.ui.screens
+
+import com.utun.chat.R
+import com.utun.chat.data.MemberAddr
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class MemberAddressFormatTest {
+    @Test fun ipv6EndpointsKeepPortSeparateFromAddress() {
+        assertEquals("[2001:db8::1]:443", "${formatAddr("2001:db8::1")}:443")
+        assertEquals("[fe80::1%wlan0]:9000", "${formatAddr("fe80::1%wlan0")}:9000")
+        assertEquals("[::]:9000", "${formatAddr("[::]")}:9000")
+        assertEquals("192.168.1.10:9000", "${formatAddr("192.168.1.10")}:9000")
+    }
+
+    @Test fun contactRequiredIsDistinctFromPublicAndNat() {
+        assertEquals(R.string.address_public, MemberAddr(addrType = 1).roleLabelRes)
+        assertEquals(R.string.address_nat_eim, MemberAddr(addrType = 2).roleLabelRes)
+        assertEquals(R.string.address_contact, MemberAddr(addrType = 5).roleLabelRes)
+        assertEquals(R.string.address_unknown, MemberAddr(addrType = 6).roleLabelRes)
+    }
+}