SparkLabs Forum

I have disabled all other devices and removed the nPcap totally
I have attached new logs showing what is going on.

Hi miknyb,

I've just noticed that your original reply configurations includes the following cipher:

cipher AES-256-CBC

However the connection is using:

jan 07 9:41:40 : Outgoing Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key
jan 07 9:41:40 : Incoming Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key

Please ensure that your ciphers match on both the client and server. You may wish to try using ncp-disable to ensure each end can't change ciphers - https://sparklabs.com/support/kb/articl ... cp-disable

Regards,
Eric

I have forced the cipher now and this is my client vpn.config:

ncp-disable
dev-node {D1E8E255-E03F-43ED-925E-AB635242BD82}
verb 5
resolv-retry infinite
auth SHA256
cipher AES-256-CBC

I have attached the vpn.log as the errors still remains.

Hi miknyb,

ncp-disable needs to be set on the server.

Regards,
Eric

I do not think that ncp_disable will fix anything as 40 of my collegaues have the same vpn-config in windows and it works for them. And changing that will force a reboot of the vpn infrastructure and that is nothing we can do easily .

Hi miknyb,

I'm afraid we're out of things to try at this point. The issue is either a misconfiguration between your client and server, or an environmental issue like a firewall/AV or some other software tampering with the packets, or as original mentioned a routing issue.

Regards,
Eric

Hi

I have installed the same config and certs in my iMac which sits on the same router as my Windows 10
I have attached the logs from that machine here to compare to my Windows 10

On the iMac everything works as it should

And here are the logs from windows 10 which still works sometimes and mostly not and when it works, very very slow in response