Cannot Access outlook with IPSec VPN

[#1]

Hi All, Having issues in accessing the outlook when connected to IPSec VPN. I can ping the exchange server with IP and name and access other resources behind the Fortigate except this outlook issue. This was working fine before and stopped after upgrading the firmware. Any solution or workaround is appreciated.

[Phuoc_Ngo]

Yeah we can ping the exchange server with no problem. Our upgrade path is straightforward from 192 (4.0 MR1 Patch2) to 194 (4.0MR1 Patch3). Nothing out of the ordinary. Reverting back to 192, everything work.

[#3]

then sound like a firmware bug, jst check with Fortinet support team..it could be something with that..

[Phuoc_Ngo]

Thank you. That what we thought :).

[ddskier]

I' m running into the same issue. Did fortinet ever provide a fix for this?

[ddskier]

Here is the response I got from support about this issue: Dear Customer, We have a known issue with image b194, bug id 121039 - B194: When DCERPC enabled, Outlook 2003 cannot always access Exchange server through a dialup tunnel (policy mode). You have following temporarily/workaround : Option-1: Downgrade to build 185 or 192, following image have no such issue. Option-2: Create a dial-up VPN using interface/route-based mode. The issue is not affecting interface/route-based mode. Following issue will be fixed in build 266, which is not release yet. Official date is still unknown. Thanks.

[Jan_Scholten]

In which version is this fixed? I can' t find build 266, and can' t see this problem mentioned in 4.2 Release notes, which i would not want to use anyway..