Fix Eufy P2P Connection Failed: Doorbell Motion Events (August 2026)
camera troubleshoot 2026-09-01 · 1,849 words

Fix Eufy P2P Connection Failed: Doorbell Motion Events (August 2026)

By Quvii Editorial How we research

Eufy doorbell owners are currently facing a disruptive “P2P Connection Failed” error that prevents viewing motion events, even when live streaming remains functional on local Wi-Fi. This guide provides the technical steps to resolve the August 2026 handshake bug and restore your security feed.

The August 2026 Eufy P2P failure is often caused by a firmware handshake bug related to how the doorbell authenticates with the Eufy “Edge Security” cloud during mobile data transitions. To fix it immediately, toggle the ‘HDR’ setting in your doorbell’s Video Settings or update to the latest ‘push’ firmware (such as v3.0.7.7 for HomeBase 3) via Eufy support.

The symptom

The symptom

Related: Fix: Eufy Security P2P Motion Alerts Not Working (August 2026) · Arlo Doorbell Missing Motion Alerts? 6 Fixes That Work (2026) · Eufy P2P Cameras Not Recording? Fix Motion Detection Failures

In late 2026, a specific pattern of failure has emerged among Eufy ecosystem users, particularly those utilizing the E340 Dual Camera and the S380 HomeBase 3. The issue is characterized by a “broken link” between notification and playback.

Mobile Data vs. Local Wi-Fi Discrepancies

The most common report involves a discrepancy in connectivity based on the user’s network. When the smartphone is connected to the same local Wi-Fi network as the HomeBase, the P2P (Peer-to-Peer) connection usually succeeds, allowing users to view events. However, once the user switches to 5G or an external Wi-Fi network, the app returns a “P2P Connection Failed” error (often accompanied by error code -202 or -3). This suggests a failure in “hole punching”—the process where the Eufy server helps your phone find your HomeBase through your router’s firewall.

The ‘Notification Without Video’ Loop

Users receive a “Motion Detected” push notification almost instantly. However, upon tapping the notification to view the recorded clip, the app enters a spinning loading state before failing. In the “Events” tab, these clips may show as “No Video” or simply fail to generate a thumbnail. This indicates that while the doorbell is successfully triggering the alert and signaling the cloud, the subsequent request to pull the encrypted video file from the HomeBase 3 or local storage is being rejected or timed out during the P2P handshake.

What’s likely happening

What's likely happening

The root of the August 2026 P2P failures lies in a combination of legacy encryption protocols and modern security hardening within the Eufy “Edge Security” architecture.

The 2026 RSA Padding Conflict

As of late 2025 and into 2026, security standards for P2P handshakes have tightened. A primary technical driver for these failures is the industry-wide move away from RSA_PKCS1_PADDING, a legacy encryption padding scheme. While Eufy has updated its official app, certain firmware versions on the E340 and S380 HomeBase 3 still utilize this padding for the initial P2P “hole punch.”

According to documentation within the eufy-security-client GitHub repository, Node.js updates and mobile OS security patches (Android 16/iOS 19) have restricted these legacy handshakes. When the Eufy app attempts to establish a direct P2P link, the handshake fails if the router or the mobile ISP’s CGNAT (Carrier-Grade NAT) detects the outdated padding as a security risk, causing the connection to drop before video can stream.

HomeBase 3 Storage Bottlenecks

The S380 HomeBase 3 manages a complex local database of AI-processed events. Following the mid-2026 firmware rollouts, some users have noted that the internal database can “hang” when processing high-frequency motion events (e.g., a busy sidewalk). If the HomeBase is busy writing an AI metadata tag to the internal database, it may fail to respond to a P2P “wake up” request within the 5-second timeout window required by the mobile app.

Firmware ComponentVersion (as of Aug 2026)Known P2P Status
HomeBase 3 (S380)v3.8.2.8Stable (Requires v4.9+ App)
E340 Dual Doorbellv3.0.7.7Fixed P2P Handshake
S330 Video Doorbell[Information unavailable]Intermittent P2P Failures
Eufy Security App (iOS)v4.9.11Active RSA Padding Patch
Eufy Security App (Android)v4.9.15Active RSA Padding Patch

Quick fixes (in order of likelihood)

Quick fixes (in order of likelihood)

If you are seeing the P2P error today, these steps resolve the issue for approximately 80% of users without requiring a full system reset.

The HDR Reset Trick

One of the most effective, albeit counterintuitive, fixes is toggling the High Dynamic Range (HDR) setting. This forces the doorbell to re-initialize its video encoder and refresh its session token with the HomeBase.

  1. Open the Eufy Security App.
  2. Tap the Settings (gear icon) on your doorbell.
  3. Navigate to Video Settings.
  4. Locate the HDR toggle. If it is ON, turn it OFF. If it is OFF, turn it ON.
  5. Exit the settings and wait 30 seconds.
  6. Toggle it back to your preferred setting. This often “pokes” the P2P listener back into an active state.

Refreshing the P2P Listener

If the HDR toggle fails, a physical power cycle of the HomeBase 3 is necessary to clear the local cache and restart the P2P listener service.

  • Power Cycle: Unplug the HomeBase 3 power adapter for at least 60 seconds. This allows the capacitors to drain and the internal database to perform a clean boot.
  • Sync Button Refresh: Briefly press the SYNC/ALARM OFF button on the back of the doorbell for 2 seconds. You should hear a beep. This refreshes the 2.4GHz wireless link to the HomeBase without deleting your settings. Do not hold it for 10 seconds, as this will factory reset the device.

Deeper diagnostics

Deeper diagnostics

If the quick fixes only provide temporary relief, the issue may lie in how your network environment handles P2P “hole punching” traffic.

Firewall and Port Prediction Settings

Eufy’s P2P system relies on UDP hole punching. Some advanced routers (like those from ASUS, Ubiquiti, or Netgear) have “Symmetric NAT” or aggressive firewalls that block these unsolicited incoming packets. To resolve this, you can attempt to allowlist known Eufy P2P server IPs in your router’s firewall settings. While these IPs can change, the following have been identified as primary P2P coordination points as of 2026:

  • 34.235.4.153
  • 18.223.127.200
  • 54.153.101.7

Additionally, ensure that UPnP is enabled on your router, or manually forward UDP ports in the range of 10000-65535 to the static IP of your HomeBase 3.

Testing Without Internal Storage

If you have expanded your HomeBase 3 with a 2.5-inch SATA drive, the drive itself may be the culprit. A failing or slow hard drive can cause the HomeBase OS to “iowait,” delaying the P2P response.

  1. Power down the HomeBase 3.
  2. Remove the internal SATA drive.
  3. Reboot the HomeBase and allow it to record to its internal 16GB eMMC storage.
  4. Test the P2P connection on mobile data. If the error disappears, your SATA drive is likely failing or too slow (ensure you are using a surveillance-grade drive like a Western Digital Purple or a high-end SSD).

When to contact support

When to contact support

If the “P2P Connection Failed” error persists after a HomeBase reboot and an HDR toggle, your device may be stuck in a “firmware gap” where the app is newer than the hardware’s ability to communicate.

Requesting a Firmware Push

Eufy often rolls out firmware in “waves” based on Serial Number (SN) batches. Your app may report that your firmware is “Up to Date” even if a newer version exists to fix the August 2026 P2P bug. Contact Eufy support via the app’s “Help” section and provide:

  • Device Serial Number (SN): Found in Device Info.
  • Current Firmware Version: (e.g., v3.8.2.2).
  • Specific Request: “Please push firmware v3.0.7.7 (or the latest stable P2P patch) to my E340 doorbell and v3.8.2.8 to my HomeBase 3 to resolve the RSA padding handshake failure.”

Warranty vs. Replacement Decisions

If your hardware is out of warranty and continues to fail despite firmware updates, it may be a hardware-level Wi-Fi chip degradation issue, which is common in doorbells exposed to high heat.

Decision Framework: Should you stay with Eufy?

  • If you own multiple Eufy cams: It is worth pursuing the “push update” from support to maintain your ecosystem.
  • If you want a subscription-free alternative: Consider the Reolink Video Doorbell Wi-Fi. It offers similar local storage benefits but uses a more standardized P2P protocol that is generally more resilient to mobile network CGNAT issues.
  • If you have a complex network (VLANs/VPNs): Move toward a doorbell that supports RTSP or ONVIF, which allows you to bypass proprietary P2P apps entirely.

How to prevent it

How to prevent it

Once your P2P connection is restored, take these steps to ensure the handshake remains stable during future firmware rollouts.

Managing Firmware Rollouts

The mid-2026 “Edge Security” update proved that “Day 1” firmware can be unstable.

  • Disable Auto-Updates: In the Eufy Security app, go to Settings > Software Version and disable automatic updates. This allows you to wait 7–14 days after a new version is released to see if the community reports P2P failures.
  • Static IP Assignment: Use your router’s settings to assign a Static IP (DHCP Reservation) to both your HomeBase 3 and your Doorbell. This prevents the P2P “hole punch” from breaking when the router reassigns IP addresses.

Network Stability Best Practices

  • Wi-Fi Band Splitting: If your router uses “Smart Connect” (merging 2.4GHz and 5GHz), the doorbell may occasionally attempt to hop to the 5GHz band, which has poor penetration through exterior walls. This causes the P2P link to time out. Force the doorbell to a dedicated 2.4GHz SSID for maximum stability.
  • Use High-End Storage: If using a microSD card instead of a HomeBase, ensure it is a “High Endurance” card. We recommend the SanDisk Max Endurance or Samsung Pro Endurance series. Standard cards often fail under the constant read/write cycles of a 2K or 4K doorbell, leading to database corruption and P2P timeouts.

Frequently Asked Questions

Why does live view work but motion events fail?

Live view often uses a different streaming path (sometimes falling back to a relay server) than motion events. Motion events require the app to query the HomeBase database for a specific file index, which is where the P2P handshake is most likely to time out if the database is busy or the encryption fails.

Is the P2P error a sign my doorbell is hacked?

No. “P2P Connection Failed” is a networking error, not a security breach. It simply means your phone and your doorbell cannot find a clear path to talk to each other through the internet.

Does Eufy charge for the P2P service?

No, the P2P connection is part of the hardware purchase. However, if the P2P connection fails consistently, Eufy may attempt to route the traffic through their cloud servers, which can be slower.

Will a factory reset fix the P2P error?

A factory reset is a last resort. It will clear the database corruption but will not fix a firmware-level handshake bug. Always try the HDR toggle and a HomeBase power cycle first.

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