How To Fix Arlo Base Station Error 4403?

The Arlo Base Station is the central hub that connects your Arlo wire-free cameras and devices to the internet so you can view your camera feeds remotely. However, many users have reported getting an error 4403 on their Arlo Base Station, which prevents connectivity and makes your cameras unusable.How To Fix Arlo Base Station Error 4403?This comprehensive guide will cover what an Arlo Base Station error 4403 is, what causes it, and provide step-by-step instructions to fix error 4403 on your Arlo Base Station. With the right troubleshooting tips, you can get your Arlo security cameras back up and running in no time.

What is Arlo Base Station Error 4403?

Error 4403 on the Arlo Base Station indicates that it is unable to communicate with the Arlo servers in the cloud. This breaks the connection between your cameras and the app used to access them remotely. As a result, live streaming won’t work and recordings can’t be stored in the cloud.

Some common situations when error 4403 occurs include:

  • Initial setup of the Arlo Base Station
  • Moving the Base Station to a new location
  • After a firmware update
  • Periodically due to WiFi connectivity issues

Without access to the cloud, your Arlo devices essentially stop working as intended. Fixing error 4403 requires re-establishing the connection between the Base Station and Arlo servers.

What Causes Arlo Base Station Error 4403?

There are a few potential reasons why your Arlo Base Station may be showing error 4403:

WiFi Connectivity Issues

The Base Station relies on your WiFi network to communicate with the cloud. If the WiFi is spotty or loses connectivity, it can interrupt the data transfer and trigger error 4403. Problems like weak signal strength, interference from other devices, incorrect WiFi password, changing ISP routers, or IP address conflicts can cause connection drops.

Incorrect Arlo Account Login Details

To sync with the Arlo servers, the Base Station needs to authenticate with your Arlo account credentials. Entering incorrect login email or password will fail the authentication process and lead to error 4403.

Outdated Firmware

Arlo releases periodic firmware updates with bug fixes and improvements for Base Stations. If the firmware is outdated, it may have compatibility issues interacting with the Arlo cloud service resulting in error 4403.

Temporary Server Maintenance

Arlo servers occasionally go down for maintenance breaks or overflow traffic. During server outages, the Base Station can’t connect resulting in 4403 errors. The connection is usually restored when servers are back up.

Now that you know what the error means and what can trigger it, let’s move on to the fixes.

How to Fix Arlo Base Station Error 4403

Resetting your Arlo Base Station connection can often resolve error 4403. Here are some troubleshooting methods to try:

Method 1: Restart the Arlo Base Station

The easiest first step is power cycling the Base Station:

  1. Locate the power cord for the Arlo Base Station.
  2. Unplug the power cord and wait 10-15 seconds.
  3. Plug the power back in and wait for the Base Station to fully boot back up.
  4. Open the Arlo app and check if error 4403 is still showing. The restart clears any temporary glitches allowing the Base Station to re-establish the cloud connection.

Method 2: Check WiFi Connection

Poor WiFi connectivity can cause error 4403. To confirm signal issues:

  1. Login to your WiFi router admin interface and check the WiFi signal near the Base Station.
  2. Optimal signal strength should be above 50% for 2.4Ghz band and above 35% for 5Ghz band.
  3. If the signal is low, move the Base Station closer to the router. Remove any obstructing objects between the two devices.
  4. Switch to the 5Ghz WiFi band if available, as it provides faster speeds and more bandwidth.
  5. Check that your internet plan provides enough upload/download speeds to support streaming video from multiple Arlo cameras.
  6. Temporarily disable other WiFi devices to diagnose interference issues. Limit active connections.
  7. Update WiFi router firmware and reset settings if needed.

Method 3: Change your Arlo Account Password

If you recently changed the password for the Arlo account tied to the Base Station, updating it resolves authentication failures:

  1. Open the Arlo app and go to Settings.
  2. Select My Account and enter your account Email and old Password.
  3. Tap Change Password and create a new password.
  4. Enter the new password in the Arlo Base Station by going through the setup process.
  5. The Base Station will now sync successfully using the updated login credentials.

Method 4: Check Firmware Version

Outdated firmware can also lead to error 4403. Make sure your firmware is up-to-date:

  1. In the Arlo app, go to Devices and select your Base Station.
  2. Tap Device Info and scroll down to check the Firmware version installed.
  3. Compare this version number to the latest firmware available on the Arlo support site.
  4. If your firmware is behind, tap Update Firmware and wait for the newest firmware to install.
  5. The Base Station will restart once firmware update completes. Check if error 4403 persists.

Method 5: Factory Reset Arlo Base Station

If all else fails, resetting the Arlo Base Station to factory settings can help resolve error 4403:

  1. Find the reset button on the bottom of the Base Station. It is labeled RESET and has a triangle icon.
  2. Press and hold the reset button for 10-15 seconds using a pin.
  3. The LED light on top will turn blue once factory reset initiates.
  4. Release the reset button and wait for the setup mode to activate.
  5. Follow the Arlo app prompts to set up and sync the Base Station from scratch. This often fixes cloud connectivity issues.

If error 4403 returns after the factory reset, contact Arlo Support for replacement options. Your Base Station may need service due to a hardware defect.

Key Takeaways to Fix Arlo Base Station Error 4403

  • Error 4403 indicates the Arlo Base Station can’t communicate with the cloud, making cameras unusable.
  • Causes include WiFi problems, incorrect Arlo account login, outdated firmware, server issues.
  • Solutions involve restarting the Base Station, checking WiFi connectivity, updating account password, installing latest firmware, and factory reset if nothing else works.
  • Contact Arlo Support if error 4403 persists after troubleshooting since hardware failure may require replacement.


Error 4403 can suddenly make your Arlo cameras stop working, but restarting and resetting the Base Station connection will usually resolve common cloud sync problems. Check that WiFi, login credentials, and firmware are all up to date. Factory reset the Base Station if issues continue. Contact Arlo Support if troubleshooting doesn’t isolate the cause to restore functionality. With the right steps, you can get rid of frustrating error 4403 and have your Arlo security system back online.

Frequently Asked Questions 

Q1: Why is my Arlo Base Station offline?
A1: The most common reasons an Arlo Base Station goes offline are WiFi connectivity problems, issues with account login credentials, outdated firmware causing compatibility problems, or temporary outages on Arlo’s cloud servers.

Q2: How do I restart my Arlo Base Station?
A2: To restart your Arlo Base Station, locate the power cord and unplug it for 10-15 seconds. Plug it back in and wait for the Base Station to fully reboot. This power cycles the device to resolve software glitches.

Q3: Does Arlo Base Station need internet?
A3: Yes, the Arlo Base Station requires a working internet connection to communicate with the Arlo servers in the cloud. It connects to your home WiFi network to access the internet. Without this connectivity, remote access and cloud storage features won’t work.

Q4: Why is my Arlo Base Station blinking orange?
A4: An orange blinking light on your Arlo Base Station typically indicates it is booting up in setup mode. It is ready to be paired with the Arlo app during initial configuration or after being reset. Once setup completes, the light will turn solid blue.

Q5: How close does Arlo Base Station need to be to router?
A5: Arlo recommends installing the Base Station 3-5 feet away from your WiFi router for optimal connectivity. Large obstructions or greater distance can impact signal strength. Adjust positioning or consider WiFi range extenders if the router is far.

Q6: Does Arlo Base Station work without internet?
A6: No, the Arlo Base Station needs continuous internet connectivity to work as expected. It won’t be able to sync recordings or allow remote access without an active internet connection. You can view live streams locally, but features are limited.

Q7: Why does my Arlo camera say base station offline?
A7: The camera displays “base station offline” error when it loses connection to the Arlo Base Station. This is typically caused by WiFi problems between the camera and base station, or the base station losing internet connectivity due to router or ISP issues.

Q8: How do I change WiFi on Arlo base station?
A8: In the Arlo app, go to Devices > Base Station > Settings > Wireless Settings. Tap your current network, then tap Scan to search for available WiFi networks. Select the new WiFi network and enter the password to connect your base station.

Q9: Why does Arlo keep disconnecting from base station?
A9: If Arlo cameras keep losing connection to the base station, it’s usually due to weak WiFi signal between the camera and base. Position cameras closer, remove obstructions, switch to 5Ghz WiFi or consider a WiFi range extender.

Q10: How do I reboot Arlo base station?
A10: The easiest way to reboot an Arlo base station is to unplug the power cord for 10-15 seconds, then plug it back in. Wait several minutes for it to restart completely. You can also press the reset button on the bottom for 10+ seconds.

Q11: Does Arlo Base Station require a subscription?
A11: No, the Arlo Base Station itself does not require a paid subscription plan to function. However, to store video recordings in the cloud and enable certain other features in the Arlo ecosystem, an Arlo Smart subscription is recommended. The base station provides connectivity without a plan.

Q12: Why is my Arlo Base Station flashing purple?
A12: A flashing purple light typically indicates the Arlo Base Station is experiencing an issue. Unplug the base station, wait a minute, and plug it back in to reboot. If the flashing persists, you may need to factory reset or contact Arlo Support.

Q13: Where is the reset button on Arlo Base Station?
A13: The reset button on the Arlo Base Station is located on the bottom of the device. Use a pin or paperclip to press and hold the recessed button down for 8-10 seconds until the light blinks blue to factory reset.

Q14: Does Arlo Base Station need to be plugged in?
A14: Yes, the Arlo Base Station must remain continuously plugged into a power source to operate. It does not have an internal battery or power itself on like the Arlo cameras. The base station connects your system to WiFi and the internet.

Q15: How do I set up Arlo Base Station?
A15: To set up an Arlo Base Station, open the Arlo app and create an account if needed. Plug in and turn on the base station. In the app, tap Add New Device and follow the on-screen pairing instructions. Scan the QR code on the base to sync it with your Arlo account.

Q16: Why is my Arlo Base Station not connecting to the internet?
A16: If your Arlo Base Station isn’t connecting to the internet, first check your WiFi router connection. Move the base station closer to the router, reboot it, and check the WiFi settings in the Arlo app. The base relies on WiFi to access the internet, so connectivity issues prevent cloud syncing.

Q17: Can the Arlo Base Station connect to a VPN?
A17: No, the Arlo Base Station does not support connecting to virtual private networks (VPNs). The base station must be on the same local network as your WiFi router with a direct internet connection for remote access functionality. Cameras can’t sync recordings through a VPN.

Q18: How far can cameras be from the Arlo base station?
A18: Arlo states its wireless cameras can be up to 300 feet away from the base station and maintain connectivity. The maximum range depends on environmental factors. Keep cameras within 150 feet for best performance. Connecting cameras farther may require an Arlo range extender.

Q19: Does Arlo Base Station record video?
A19: No, the Arlo Base Station does not directly record or capture video. It provides the connection for your Arlo cameras and devices to sync with the cloud for storing recordings. The cameras stream video to the base station via WiFi, which are then transmitted to the cloud servers.

Q20: Can you have multiple Arlo base stations?
A20: Yes, you can install multiple Arlo base stations on a single Arlo account. Adding extra base stations allows you to extend the WiFi range and connect more Arlo devices. They will sync recordings to the same Arlo account in the cloud.

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