ASUS ZenWiFi AX IP Refresh Guide
🔄 1. Reset the DHCP Lease Pool
The most effective way to “kick” all devices and force the router to re-evaluate assignments is to toggle the DHCP server. This clears the active assignment table without deleting your settings.
- Log in to your dashboard via the ASUS Web GUI.
- Navigate to Advanced Settings > LAN.
- Select the DHCP Server tab.
- Set Enable the DHCP Server to No and click Apply.
- Wait 30 seconds, then set it back to Yes and click Apply again.
🗑️ 2. Purge Ghost & Offline Devices
“Ghost” devices appear because the router remembers their MAC addresses even after they leave the network. You can batch-clear these using the mobile app.
- Open the ASUS Router App on your phone.
- Tap the Devices tab at the bottom.
- Expand the Offline list.
- Tap the Select (or three dots) icon and choose Clean Offline List. This removes historical data for devices no longer connected.
⚙️ 3. Fix IP Conflicts & Manual Assignments
If you have rogue devices that won’t go away, they might be stuck in your “Manual Assignment” list or have stale leases.
📍 Remove Stale Bindings
In the LAN > DHCP Server menu, scroll down to the Manual Assignment list. Look for any entries you don’t recognize and click the Minus (-) icon to delete them. Click Apply to save.
⏳ Shorten the Lease Time
To prevent conflicts in 2025 with many IoT devices jumping on and off your network, shorten your Lease Time. Change the default 86400 (24 hours) to 3600 (1 hour). This forces the router to check device status every hour, clearing out “ghosts” much faster.
⚡ 4. Final Force Refresh
Once you have applied the settings above, perform these two actions to finish the job:
Reboot the Router: Go to the Network Map and click Reboot at the top. This forces every physical device to request a new IP.
Client Refresh: On Windows PCs, you can manually speed this up by opening a command prompt and typing: ipconfig /release then ipconfig /renew.
💡 Pro Tip: If you see “rogue” devices you don’t recognize even after a reset, consider changing your Wi-Fi password (WPA2/WPA3 Personal) to ensure no unauthorized neighbors are piggybacking on your Zen WIFI mesh.
