"Failed to save changes" in the last step of VPN wizard

[damianhlozano]

Hello team!!

We have 2 Fortigates 100F in HA, working fine In these Fortigates, we have 2 IPsec site to site VPNs working fine We need to create VPNs for FortiClient, to some users to have connectivity to office from diferent external sites.

I will try to explain what happen from the beginning

* I had created a VPN for some external users when Fortigates were in 7.4.4

* This VPN worked fine

* Fortigate was updated from 7.4.4 to 7.6.2

* Then we did not need anymore this VPN, and insted we needed to create a VPN for all internal users

* Instead of rename VPN, I decided to delete the VPN and create a new VPN

* The first time I had created the VPN in 7.6.2, I think I didnt get any error, but VPN did not work

* I tried to troubleshoot but did not make it work

* I deleted the new VPN again

* I tried to create this again, then in the last step, I got "Failed to save changes"

But we have received this error:

date=2025-03-31 time=11:09:13 devid="FG100FTK22025224" devname="fw-ha01b" eventtime=1743430152766676560 tz="-0300" logid="0100032546" type="event" subtype="system" level="warning" vd="root" logdesc="Application crashed" action="crash" msg="Pid: 08092, application: cmdbsvr, Firmware: FortiGate-100F v7.6.2,build3462b3462,250127 (GA.F) (Release), Signal 11 received, Backtrace: [0x555851f4ac] [0x5557058fc0] [0x5557059fbc] [0x5557059154] [0x555851fa14] [0x555851ff3c] [0x5557c80ba8] [0x5557c79974] [0x5557c88678] [0x5557c88808] [0x5557d6003c] [0x5557c0e784] [0x5557c13e78] [0x5557bece40] [0x5557beaea4] [0x5557bec3b4] [0x5557bec730] [0x5557bf9664] [0x5557bf9ed0] [0x5557bfa4ec] [0x5557bde7bc] [0x5557bdf2c4] [0x5557c3ab8c] [0x5557c5deec] [0x5557c5340c] [0x5557c45190] [0x5557c48da0] [0x5557c66e1c] [0x5555934f8c] [0x555593b464] [0x555593ba44] [0x555593eb30] [0x555593f648] [0x7fb718af24]"

If I close the wizard, I see the VPN created but without phase2. I tried to use another name for the VPN, but I get the same error. A lot of times, I have created different VPN with previous versions, but 7.6.2 seems to be more complex.

How can we solve this?

Thanks in advance.

Regards,

Damián

[AEK]

Hi Damian

I don't find such known issue in the release notes.

Can you try with CLI? This guide should help:

https://docs.fortinet.com/document/fortigate/6.2.16/cookbook/6896/fortigate-as-dialup-client

[damianhlozano]

Thanks AEK!

I forget to update this post.

I created a ticket with fortinet and the engineer told me that she saw the same problem before and this was because of the VPN name.  I created another VPN with another name and this worked.

This seems that VPN name does not support the word "Users", but I am not sure because I stopped testing when it started to work.  I think this is something with 7.6.2

Thanks anyway!

Regards,

Damián