diff --git a/.env.example b/.env.example
index efbd61c..f8f04cf 100644
--- a/.env.example
+++ b/.env.example
@@ -2,17 +2,25 @@
 # Copy this file to .env and adjust values for your setup
 
 # ============================================
-# MeshCore Device Configuration
+# MeshCore Device Connection
 # ============================================
+# Two transport options: Serial (USB) or TCP (network).
+# Set MC_TCP_HOST to use TCP; leave empty to use serial.
 
-# Serial port path
+# --- Option A: Serial (default) ---
 # Use "auto" for automatic detection (recommended if only one USB device)
 # Or specify manually: /dev/serial/by-id/usb-xxx or /dev/ttyUSB0
 # Find available devices: ls /dev/serial/by-id/
 MC_SERIAL_PORT=auto
 
+# --- Option B: TCP (e.g. remote device via ser2net, meshcore-proxy) ---
+# Set the IP/hostname of the device to connect via TCP instead of serial.
+# When MC_TCP_HOST is set, MC_SERIAL_PORT is ignored.
+# MC_TCP_HOST=192.168.1.100
+# MC_TCP_PORT=5555
+
 # Your MeshCore device name (used for .msgs file)
-# Use "auto" for automatic detection from meshcli (recommended)
+# Use "auto" for automatic detection from device (recommended)
 # Or specify manually: MarWoj, SP5XYZ, MyNode
 MC_DEVICE_NAME=auto
 
diff --git a/app/config.py b/app/config.py
index 3d2eec0..90f14bd 100644
--- a/app/config.py
+++ b/app/config.py
@@ -30,7 +30,7 @@ class Config:
 
     # v2: TCP connection (alternative to serial, e.g. meshcore-proxy)
     MC_TCP_HOST = os.getenv('MC_TCP_HOST', '')  # empty = use serial
-    MC_TCP_PORT = int(os.getenv('MC_TCP_PORT', '5000'))
+    MC_TCP_PORT = int(os.getenv('MC_TCP_PORT', '5555'))
 
     # v2: Backup
     MC_BACKUP_ENABLED = os.getenv('MC_BACKUP_ENABLED', 'true').lower() == 'true'
diff --git a/docker-compose.yml b/docker-compose.yml
index 9dcc474..58cb072 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -19,9 +19,8 @@ services:
       - MC_DEVICE_NAME=${MC_DEVICE_NAME:-MeshCore}
       - MC_CONFIG_DIR=/data
       - MC_DB_PATH=/data/mc-webui.db
-      # TCP mode (uncomment to use meshcore-proxy instead of serial):
-      # - MC_TCP_HOST=192.168.1.100
-      # - MC_TCP_PORT=5000
+      - MC_TCP_HOST=${MC_TCP_HOST:-}
+      - MC_TCP_PORT=${MC_TCP_PORT:-5555}
       - MC_BACKUP_ENABLED=${MC_BACKUP_ENABLED:-true}
       - MC_BACKUP_HOUR=${MC_BACKUP_HOUR:-2}
       - MC_BACKUP_RETENTION_DAYS=${MC_BACKUP_RETENTION_DAYS:-7}