# Cipher none not working with latest release v1.32.4181.41

**URL:** <https://forum.pritunl.com/t/cipher-none-not-working-with-latest-release-v1-32-4181-41/3286>\
**Category:** Pritunl VPN\
**Created:** [April 30, 2025, 8:50am UTC](https://forum.pritunl.com/t/cipher-none-not-working-with-latest-release-v1-32-4181-41/3286 "2025-04-30T08:50:56Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![mfrican](https://forum.pritunl.com/letter_avatar_proxy/v4/letter/m/87869e/32.png) [@mfrican](https://forum.pritunl.com/u/mfrican)\
**Post date:** [April 30, 2025, 8:50am UTC](https://forum.pritunl.com/t/cipher-none-not-working-with-latest-release-v1-32-4181-41/3286/1 "2025-04-30T08:50:56Z")

</div>

Morning,

I was using pritunl v1.32.3805.95 with openvpn 2.5.x, now after the upgrade to v1.32.4181.41 the openvpn used is 2.6.x.

I need cipher none (i am aware of security concerns). with openvpn 2.5 was enought cipher none and data-ciphers none.

Now is not working anymore because with ovpn 2.6.x cipher none is overcame by ncp. if I disable ncp or i keep data-ciphers none on client side the connection do not starts.

How can I disable ncp on server?

In all the other conditions ncp agree for aes-256-GCM.

How can I solve it?

---

<div class="post-metadata">

**Author:** ![mfrican](https://forum.pritunl.com/letter_avatar_proxy/v4/letter/m/87869e/32.png) [@mfrican](https://forum.pritunl.com/u/mfrican)\
**Post date:** [April 30, 2025, 10:14am UTC](https://forum.pritunl.com/t/cipher-none-not-working-with-latest-release-v1-32-4181-41/3286/2 "2025-04-30T10:14:37Z")

</div>

Should work like this or I am going to disrupt everythinks?

sudo systemctl stop pritunl  
wget [https://repo.pritunl.com/stable/apt/pool/main/p/pritunl/pritunl\_1.32.4181.41-0debian1~bookworm\_amd64.deb](https://repo.pritunl.com/stable/apt/pool/main/p/pritunl/pritunl_1.32.4181.41-0debian1~bookworm_amd64.deb)  
sudo dpkg -i pritunl\_1.32.4181.41-0debian1~bookworm\_amd64.deb  
sudo systemctl start pritunl

---

<div class="post-metadata">

**Author:** ![zach](https://forum.pritunl.com/user_avatar/forum.pritunl.com/zach/32/1105_2.png) [@zach](https://forum.pritunl.com/u/zach)\
**Post date:** [May 1, 2025, 6:12pm UTC](https://forum.pritunl.com/t/cipher-none-not-working-with-latest-release-v1-32-4181-41/3286/3 "2025-05-01T18:12:30Z")

</div>

I think this may require adding `ncp-disable` to the configuration when the cipher is set to none. Adding it to the client configuration may be a fix for current releases. I will add the `ncp-disable` when the cipher is set to none in the next release.