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OpenVPN Error

sosready
Aspirant

OpenVPN Error

We have been succesfully connecting to a Netgear R8000 (FW: V1.03.46_1.1.32) router using OpenVPN since August 2017. Recently, we could not connect and we did not make any changes to the OpenVPN software. We are not sure what version of the software we were using because we uninstalled it before looking at that or the logs ;(  So we decided to download the latest version 2.4.5 and replace our config files with fresh copy from the router. We got this error on connection attempt:

 

 WARNING: No server certificate verification method has been enabled.
OpenSSL: error:140AB18ESmiley FrustratedSL routinesSmiley FrustratedSL_CTX_use_certificate:ca md too weak
OpenSSL reproted a certificate with a weak hash, please the in app FAQ about weak hashes
Cannot load inline certificate file
Exiting due to fatal error

  

We decided to go back a version of OpenVPN to  2.4.3 and we could connect ok.  How can we get version 2.4.5 to work-it must be more secure.

Thank you!

Model: R8000|Nighthawk X6 AC3200 Smart WIFI Router,R8000P|Nighthawk X6S—AC4000 Tri-Band WiFi Router
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JamesGL
Master

Re: OpenVPN Error

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Diggie3
Luminary

Re: OpenVPN Error

Netgear is shipping routers with certificates that use the md5 digest, and OpenVPN considers it too weak and won't connect to it.

You can find one solution here:
https://community.netgear.com/t5/R6000-Series-AC-WiFi-Routers/R6250-with-OpenVPN-2-4-5/m-p/1529598#M...
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JamesGL
Master

Re: OpenVPN Error

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JamesGL
Master

Re: OpenVPN Error

Hi sosready,

 

We’d greatly appreciate hearing your feedback letting us know if you need further assistance.

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