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OpenVPN error SSL_CTX_use_certificate failed ee key too small

kalnas

Thursday - last edited 9 minutes ago

Posts: 7

Helpful: 1

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Registered: 2022-02-06

OpenVPN error SSL_CTX_use_certificate failed ee key too small

Thursday - last edited 9 minutes ago

Tags: #Controller #OpenVPN #Network Connectivity #VPN

Model: ER605 (TL-R605)

Hardware Version: V1

Firmware Version: 1.3.1 Build 20231207 Rel.61384

Apparently, the OpenVPN build used by the router is old and uses 1024bit keys instead of 2048bit modern keys.

Is there a way to get ER605 generate 2048bit key?

Is there a way to upload a custom certificate to be used by the server?

Maybe there is a newer router model that does that?

Bonus question - is there an Omada router that supports DCO over OpenVPN?

1 Accepted Solution

Ethan-TP

9 minutes ago - last edited 9 minutes ago

Posts: 562

Helpful: 40

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Registered: 2025-09-08

Re:OpenVPN error SSL_CTX_use_certificate failed ee key too small-Solution

9 minutes ago - last edited 9 minutes ago

@山

All currently released firmware versions for Omada Gateways use 1,024-bit certificates and do not support uploading custom certificates. We plan to upgrade our other Omada Gateways to support 2,048-bit keys in a future firmware update; however, the exact release date for this enhancement is not yet available. Please keep an eye on our firmware release announcements.

Wishing you a joyful life and smooth internet! Get the Latest Firmware Releases for Omada Routers Here - Subscribe for Updates Omada US Enterprise Beta Program Launch

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