Problem Connecting to Fortinet VPN

[DarrenW66]

Hi there, I've recently started experiencing connecting through Fortinet VPN from my home network (Talk Talk Fibre 65) when connecting through mobile data doesn't seem to have this problem.  is this a know problem from Talk Talk wifi and if so, are there any known solutions, please?

[DarrenW66]

Hi Keith, thanks for this update, it may have fixed things:)  I'll check over the next couple of days, though as sometimes I have been able to connect through the vpn and then the problem has arisen again.   If it is fixed, I'll action the 'Accept' as requested.

If it's not fixed it, I'll repost the post that was deleted (as far as I can remember  what I wrote).  Sorry I didn't get to this before now, I've been tied up with some other things over the last couple of days.

Best regards

[KeithFrench]

Hi @DarrenW66 

Apparently, there was a bug in Windows 10/11 that has been affecting VPNs recently (mine were unaffected). This has been fixed in the Patch Tuesday update for Windows released today. Although this is normally a security only update, Microsoft has also rolled out this fix as well. Once updated, please can you retry? I am not hoping for much, but you never know.

[Chris-TalkTalk]

Hi DarrenW66,

Your last post has been automatically moved to spam quarantine. Could you try posting it again without the link, hopefully this will go through OK

Chris

[KeithFrench]

Hi @DarrenW66 

Which VPNBook SSL servers were you using, I haven't found any supporting SSL. What I did do was to analyse a connection attempt of my own that gets to about 48% using a VPNGate SSL server in Wireshark. The Forticlient contacts the server and performs some encrypted exchange. Are you sure that you don't need to use any certificates? Did this ever work to your employer's VPN server?

[DarrenW66]

Hi again Keith, thank you for persevering with this.

Generally it gets to 40% before failing.

Interestingly, if I run the open vpn (vpnbook) on my machine and then connect to Fortinet, it seems to connect much better.  

I don't know if that helps explain the problem here?

Thank you again,

[KeithFrench]

Hi @DarrenW66 

I have been trying all of the free SSL VPN servers that I can find & can't connect to any of them. When you try & connect to your work network, what percentage does the connection reach before it fails?

[KeithFrench]

Hi @DarrenW66 

Thanks for that, I'll give it a try & come back to you.

[DarrenW66]

Thanks Keith, just sent to you....

[KeithFrench]

 @DarrenW66 

Please can you send me a PM (to protect your Privacy) with a screenshot of how you have it configured, so as I can test this in the same way that you are using it?

The information below is provided by TalkTalk, for confirmation please contact @Debbie-TalkTalk or@Michelle-TalkTalk.

KeithFrench is one of our valued Community Stars and can help with a range of issues related to wireless and networking. At times he may ask you to send him test results via a Private Message to help analyse/diagnose an issue. Although Keith does not work for TalkTalk, he very kindly shares his time and knowledge to help with others.

If you need further help or, if we need to take any details such as personal information about your account like phone numbers, account numbers etc. one of the TalkTalk team will jump in and help out.

[KeithFrench]

Thanks, I'll have a look at it.

[DarrenW66]

Sorry, it's https://www.fortinet.com/support/product-downloads

Thank you.

[KeithFrench]

Hi @DarrenW66 

I have tested that router for any free VPNs that I could find at the time, but did not know that there was a free version of that one. I think that you forgot the link.

[DarrenW66]

My apologies Keith.  It is SAGECOM FAST 5364-3.T8

Here's the link to the Forticlient download page.  I'm using the free version headed 'Forticlient VPN' at the bottom of the download options, Windows version.

Thank you again, so much, for any help you can offer.

[KeithFrench]

Hi @DarrenW66 

The TalkTalk WiFi hub is not much use I am afraid description e pull up plastic panel, there is a sticker behind that which will tell you. It is probably one of these:-

• Sagemcom FAST 5364
• Sagemcom FAST 5464
• Huawei DG8041W

Do you have a link you could give me to the VPN client's support site, as those protocols are ones that applications use, rather then the one that the VPN client uses to connect to its server.

[DarrenW66]

Thanks Chris.  Updated as requested.

[DarrenW66]

Hi Keith, thank you for trying to help me with this.

I'm using the TalkTalk wifi hub.  And I think this Fortinet vpn is using either TLS1.3 or SMBv2.  I looked those up on their website as i don't know how to find this information out otherwise.  Sorry.  Grateful for any help you can give me, though.  Thank you

[Chris-TalkTalk]

Hi DarrenW66,

In addition to answering Keith's questions can you please update your community profile to include your:

• Name
• Telephone number
• Alternative contact number

We'll then look into this further. Please do not post this information on this thread. Once you've updated your profile please post in your topic to confirm it's updated.

Thanks

Chris

[KeithFrench]

Which make/model of router do you have?

Do you know which VPN protocol this VPN client uses:-

1. PPTP
2. L2TP-IPSec
3. SSTP
4. IKeV2