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[GH-ISSUE #3071] [Self-hosted][AWG 3.1][Android TV] Severe speed degradation on armeabi-v7a device #1418

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opened 2026-10-13 20:42:07 +00:00 by bsakaguchi · 1 comment

bsakaguchi commented

2026-10-13 20:42:07 +00:00

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Originally created by @mchubarov on GitHub (Aug 27, 2026).
Original GitHub issue: https://github.com/amnezia-vpn/amnezia-client/issues/3071

Describe the bug

After upgrading my self-hosted server from AmneziaWG 2.0 to AmneziaWG 3.1, VPN download speed became extremely low on a Xiaomi Mi Smart Projector 2 Pro.

The projector reaches approximately 100 Mbps without VPN, but only 8–9 Mbps through AmneziaWG 3.1.

The same self-hosted server provides approximately 120 Mbps through AmneziaWG 3.1 on a Xiaomi 14T smartphone. Therefore, the VPS bandwidth does not appear to be the bottleneck.

To Reproduce

Steps to reproduce the behavior:

Install AmneziaVPN 5.0.1.5 on a Windows x64 computer.
Remove the existing AmneziaWG 2.0 container from a self-hosted server.
Install AmneziaWG again through AmneziaVPN 5.0.1.5, which deploys AmneziaWG 3.1.
Create a new guest connection for the AmneziaWG protocol.
Install AmneziaVPN_5.0.1.5_android9-10_armeabi-v7a.apk on a Xiaomi Mi Smart Projector 2 Pro.
Connect to the self-hosted server and run a speed test.
Download speed is limited to approximately 8 Mbps.
Export a native AmneziaWG .conf file and import it into the standalone AmneziaWG Android application version v3.1.20260814.
Run the speed test again. Speed remains approximately 9 Mbps.

Expected behavior

The projector should provide reasonable VPN throughput. Some protocol overhead is expected, but a reduction from approximately 100 Mbps without VPN to 8–9 Mbps with AmneziaWG 3.1 appears excessive.

Log files

Not attached yet. Please advise which AmneziaVPN/AmneziaWG client logs and server logs would be useful for diagnosing this performance issue.

Screenshots

Speed-test screenshots can be provided if required.

Desktop (please complete the following information):

OS: Windows x64
Version: AmneziaVPN 5.0.1.5

Smartphone (please complete the following information):

Device: Xiaomi Mi Smart Projector 2 Pro
OS: Android TV 9
CPU: Amlogic T972-H
RAM: 2 GB
Architecture: armeabi-v7a
Version: AmneziaVPN 5.0.1.5
Standalone client: AmneziaWG Android v3.1.20260814

Server (please complete the following information):

OS: Unknown, self-hosted server managed through AmneziaVPN
Location: Netherlands
Protocol: AmneziaWG 3.1
Transport: UDP
Port: 585
Installation method: AmneziaWG 2.0 was removed and AmneziaWG was installed again through AmneziaVPN 5.0.1.5

Additional context

Speed comparison:

Xiaomi Mi Smart Projector 2 Pro without VPN: approximately 100 Mbps
Xiaomi Mi Smart Projector 2 Pro with AWG 3.1 in AmneziaVPN: approximately 8 Mbps
Xiaomi Mi Smart Projector 2 Pro with standalone AmneziaWG 3.1: approximately 9 Mbps
Xiaomi 14T without VPN: approximately 620 Mbps
Xiaomi 14T with AWG 3.1 through the same self-hosted server: approximately 120 Mbps

Troubleshooting already performed:

Tested automatic/default MTU.
Tested MTU 1280.
Tested MTU 1200.
MTU changes improved speed by only approximately 3 Mbps.
MTU 1280 solved a separate download-speed problem on Windows, but did not solve the Android TV performance problem.
Tested both the full AmneziaVPN application and the standalone AmneziaWG 3.1 application.
Rebooted and reconnected the Android TV device.
The network connection itself is not limited to 8–9 Mbps because the projector reaches approximately 100 Mbps without VPN.

Relevant sanitized AWG settings:

MTU = 1280
Jc = 6
Jmin = 10
Jmax = 50
S1 = 134
S2 = 86
S3 = 33
S4 = 12
ContentPaddingAddition = 10-100
RandomTrailers = on
DisableCookies = on
PersistentKeepalive = 25-35

Private keys, preshared keys, server IP address and HeaderProtectionKey have been omitted.

The results suggest a possible performance regression in the AmneziaWG 3.1 armeabi-v7a backend or excessive processing overhead from AWG 3.1 transport obfuscation on 32-bit Android TV devices.

Originally created by @mchubarov on GitHub (Aug 27, 2026). Original GitHub issue: https://github.com/amnezia-vpn/amnezia-client/issues/3071 **Describe the bug** After upgrading my self-hosted server from AmneziaWG 2.0 to AmneziaWG 3.1, VPN download speed became extremely low on a Xiaomi Mi Smart Projector 2 Pro. The projector reaches approximately 100 Mbps without VPN, but only 8–9 Mbps through AmneziaWG 3.1. The same self-hosted server provides approximately 120 Mbps through AmneziaWG 3.1 on a Xiaomi 14T smartphone. Therefore, the VPS bandwidth does not appear to be the bottleneck. **To Reproduce** Steps to reproduce the behavior: 1. Install AmneziaVPN 5.0.1.5 on a Windows x64 computer. 2. Remove the existing AmneziaWG 2.0 container from a self-hosted server. 3. Install AmneziaWG again through AmneziaVPN 5.0.1.5, which deploys AmneziaWG 3.1. 4. Create a new guest connection for the AmneziaWG protocol. 5. Install `AmneziaVPN_5.0.1.5_android9-10_armeabi-v7a.apk` on a Xiaomi Mi Smart Projector 2 Pro. 6. Connect to the self-hosted server and run a speed test. 7. Download speed is limited to approximately 8 Mbps. 8. Export a native AmneziaWG `.conf` file and import it into the standalone AmneziaWG Android application version `v3.1.20260814`. 9. Run the speed test again. Speed remains approximately 9 Mbps. **Expected behavior** The projector should provide reasonable VPN throughput. Some protocol overhead is expected, but a reduction from approximately 100 Mbps without VPN to 8–9 Mbps with AmneziaWG 3.1 appears excessive. **Log files** Not attached yet. Please advise which AmneziaVPN/AmneziaWG client logs and server logs would be useful for diagnosing this performance issue. **Screenshots** Speed-test screenshots can be provided if required. **Desktop (please complete the following information):** * OS: Windows x64 * Version: AmneziaVPN 5.0.1.5 **Smartphone (please complete the following information):** * Device: Xiaomi Mi Smart Projector 2 Pro * OS: Android TV 9 * CPU: Amlogic T972-H * RAM: 2 GB * Architecture: armeabi-v7a * Version: AmneziaVPN 5.0.1.5 * Standalone client: AmneziaWG Android v3.1.20260814 **Server (please complete the following information):** * OS: Unknown, self-hosted server managed through AmneziaVPN * Location: Netherlands * Protocol: AmneziaWG 3.1 * Transport: UDP * Port: 585 * Installation method: AmneziaWG 2.0 was removed and AmneziaWG was installed again through AmneziaVPN 5.0.1.5 **Additional context** Speed comparison: * Xiaomi Mi Smart Projector 2 Pro without VPN: approximately 100 Mbps * Xiaomi Mi Smart Projector 2 Pro with AWG 3.1 in AmneziaVPN: approximately 8 Mbps * Xiaomi Mi Smart Projector 2 Pro with standalone AmneziaWG 3.1: approximately 9 Mbps * Xiaomi 14T without VPN: approximately 620 Mbps * Xiaomi 14T with AWG 3.1 through the same self-hosted server: approximately 120 Mbps Troubleshooting already performed: * Tested automatic/default MTU. * Tested MTU 1280. * Tested MTU 1200. * MTU changes improved speed by only approximately 3 Mbps. * MTU 1280 solved a separate download-speed problem on Windows, but did not solve the Android TV performance problem. * Tested both the full AmneziaVPN application and the standalone AmneziaWG 3.1 application. * Rebooted and reconnected the Android TV device. * The network connection itself is not limited to 8–9 Mbps because the projector reaches approximately 100 Mbps without VPN. Relevant sanitized AWG settings: ```ini MTU = 1280 Jc = 6 Jmin = 10 Jmax = 50 S1 = 134 S2 = 86 S3 = 33 S4 = 12 ContentPaddingAddition = 10-100 RandomTrailers = on DisableCookies = on PersistentKeepalive = 25-35 ``` Private keys, preshared keys, server IP address and HeaderProtectionKey have been omitted. The results suggest a possible performance regression in the AmneziaWG 3.1 armeabi-v7a backend or excessive processing overhead from AWG 3.1 transport obfuscation on 32-bit Android TV devices.

bsakaguchi commented

2026-10-13 20:42:08 +00:00

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@Vitalik93 commented on GitHub (Aug 28, 2026):

https://github.com/amnezia-vpn/amnezia-client/issues/3064

@Vitalik93 commented on GitHub (Aug 28, 2026): https://github.com/amnezia-vpn/amnezia-client/issues/3064

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amnezia-vpn/amnezia-client#1418

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