Just installed macOS Big Sur and cannot get a connection with Fortinet firewall VPN anymore, while it did work with macOS Catalina.
I tried Forticlient version 6.4 which seems to connect just fine (I get an IP in expected range), but ssh/ping does not work. And also I cannot access a intranet http/https page.
Also tried multiple versions of 6.0.x but they all fail to connect and show "Connection was terminated unexpectedly. Error -104". After that, the keyboard (Macbook 16 inch) even fails to register any pressed buttons. For example I open app "notes" and cannot type anything (with every keystroke a sound is played but nothing is written). The only way to get out of this situation is to click "connect to VPN" in forticlient again and before it gets to the error click "disconnect". Then all works as usual (except the VPN obviously).
Anyone else having these issues?
Update Nov 25th 2020:
Ok, so after quite a bit of testing by the people who maintain our firewall, we managed to make IPSec VPN work with native Mac OS Big Sur VPN client. I am always amazed by the lack of Fortinet response in this type of issues, as the solution seems pretty simple in the end. Eventually the configuration at fortigate firewall stayed exactly as it was, the only configuration I needed to add locally (with respect to using the FortiClient software) is to add a group name under "Authentication Settings". So to make it work we:
[ul]Hopefully this helps others to get Fortigate IPSec VPN work with both Mac OS Big Sur and MacOS Catalina (both tested with our config).
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If you're only using Forticlient to connect to your VPN, in macOS Big Sur you no longer need it. The built-in Cisco IPsec VPN of Big Sur will now connect and correctly establish a tunnel to your Fortinet VPN and it's very stable and reliable. I never managed to to this in Catalina, but it seems Apple may have corrected or changed the Cisco IPSec code in Big Sur and it's now working like a charm. I tried it yesterday and it worked flawlessly.
Kiran wrote:The problem is similar. It all started after the update macOs Big Sur.Same issue for me as well. Able to connect to IPSec VPN, but not able to open/connect to any internal URLs/Resources. And it's working fine for users with previous version of MacOS.
Yeah, But unfortunately when I reached out to support, they said that currently there is no supported version for MacOS 11 yet and will be available in future versions. So thought that better to suggest some alternative to people who are suffered like me, until the fix is release.
Kiran wrote:You can add Local ID in native Mac OS VPN client (type: Cisco). Just click Authentication settings and type your LocalID in the Group Name field.
Did you configure your IPSec VPN with Phase 1 - Local ID? When I tried native CISCO IPSec VPN, it did not work for VPN which is configured without Phase 1 - Local ID. Modify your VPN configuration with Phase 1 - Local ID and give it as 'Group Name'(which will be the option below the Shared Secret) while configuring the native VPN.
FGT60B, FGT100A, FGT100D
kcerb wrote:This solved the problem for me. I made an account just to say thanks. Once I filled out the Group Name I was connected. Hopefully my company supports the newer version of Fortinet in the future, but I'm happy to use the built-in VPN for now.Kiran wrote:You can add Local ID in native Mac OS VPN client (type: Cisco). Just click Authentication settings and type your LocalID in the Group Name field.
Did you configure your IPSec VPN with Phase 1 - Local ID? When I tried native CISCO IPSec VPN, it did not work for VPN which is configured without Phase 1 - Local ID. Modify your VPN configuration with Phase 1 - Local ID and give it as 'Group Name'(which will be the option below the Shared Secret) while configuring the native VPN.
[attachImg]https://forum.fortinet.com/download.axd?file=0;191690&where=message&f=Setup-VPN-on-Mac-Linux-and-Windows.png[/attachImg]
Just to confirm the VPN only installer is now updated on the website - Mac now connects using IPSEC on BigSur
WOOHOO
Thanks for updating it. (Labelled as 6.4 but when installing pulls the latest release 6.4.2.1.1305)
Rob
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Same exact problem. I know that FortiClient uses a now-deprecated system extension that is no longer supported in macOS as of Big Sur. I think it's probably on Fortinet to update their software and system extension.
Hi!
I'm having the same issues, does anyone have a solution for this yet? Please, i use VPN for my work.
Thanks
oskrvas wrote:Hi!
I'm having the same issues, does anyone have a solution for this yet? Please, i use VPN for my work.
Thanks
No one has a solution. The manufacturer must provide a solution. If the server is authorized by admins, then you can use the standard apple VPN.
IPsec VPN is not working!!!
I configured SSL-VPN and is working ok.
I downloaded the latest Fortinet VPN client and there is nowhere to enter the group name - I only see Username. Do you have a screenshot you can share?
I have the same issue with Fortinet VPN client failing after Mac BIGSUR update. Tried updating to latest version of fortinet VPN client - still not working. The firewall has not changed and my Windows 10 PC can connect OK so problem is with Mac client. I configured the Mac native Cisco IPSEC client as advised above (THANKS for this advice) with user ID, group ID, and shared secret and the native mac IPSEC client connects OK however I still can't ping or RDP to any servers inside the network so something is not right as I can only browse the Internet with the VPN. I seem to recall that with the fortinet VPN client I had disabled split tunneling but I am not sure how that works with the native Mac client (or if that is set on firewall or client) so maybe this is relevant. Any suggestions are appreciated.
Hey there!
Yeah I'm on Big Sur now too! I didn't have any problems with anything fortinet relatetd. I don't have any IPSec VPNS in my client though, only SSL.
Same Issue here.
version 6.4.1.0447 connect to the server at the office, but no traffic
Version 6.4.4 connection give error 104
The problem might be in the VPN provider you're currently using.
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