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MarcusI
MarcusI
New Member
September 24, 2019
Question

VPN , Outlook, exchange

  • September 24, 2019
  • 1 reply
  • 18128 views

Hello everyone: Let's see if you can help me, I have several computers using the Forticlient to access the company's VPN, the connection is established correctly, but as soon as you try to download the messages from Microsoft Outlook through Exchange it does so for a few minutes, then the Outlook itself puts me, after retrying it, disconnected, and does not let me work with the Outlook ... any ideas ??

 

The connection is simple, mail server (VM) -switch-fortigate-(ISP)Internet Thank you in advance.

    1 reply

    seadave
    seadave
    New Member
    February 13, 2020

    Did you figure this out?  We just migrated to 6.0.7 and we are seeing a similar problem.  See this post:

     

    https://forum.fortinet.com/tm.aspx?m=183163

     

    ede_pfau
    SuperUser
    ede_pfau
    SuperUser
    February 14, 2020

    SSLVPN or IPSec?

    There've been problems with SSL VPN in FOS v6.0.7. Upgrade to v6.0.9 to see if it helps.

    seadave
    seadave
    New Member
    February 14, 2020

    It is SSLVPN.  We have held off of 6.0.9 due to the RDP bug in SSLVPN.  We were on 6.0.5 and experienced a logging delay issue.  Logs were getting dropped or buffered for an excessive amount of time.  Moving to 6.0.7 fixed that, but now we have this issue.  Frustrating.  You think they would QC something as critical as SSLVPN more rigorously.  Release notes don't mention this type of issue so maybe we are the lucky winners of the unique bug.

     

    It is odd.  Everything else works fine, it just seems to be munging Outlook 16 connectivity to our on-Prem Exchange 2016 server.  All DNS and layer 3/Pings check out just fine.  Can still log into OWA just fine.  But the minute I connect via FortiClient VPN it starts logging connectivity issues when Outlook tries to sync.

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