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anybody seeing issues with XG17 causing Outlook desktop client losing "sync" with Office365.

wpajack

We've starting seeing issues in the last month or so with Outlook desktop client losing sync with Office365 when it will just stop syncing the cached mailbox.  no errors and it will say all folders up to date.  It takes restarting Outlook for it to get back in sync and it will stay synced for a random period of time at which time it will stop syncing again.

 

I'm thinking the issue is linked with the upgrade from XG16 to XG17 that happened around the same time.  i waited until MR3 to upgrade to XG17.  I did the MR5 upgrade to see it that would help but it doesn't appear so.



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  • 0

    We have seen this issue randomly as well after upgrading from 16.5 to 17.3 and then to 17.5. Seemed to make the issue not happen as often but we still get a couple of reports a week. We were using load balancing on the FW rule. When we changed it to use one ISP connection we noticed outlook quit syncing until we restarted outlook.

     

    Anyone else using load balancing that is seeing this issue?

  • 0 in reply to Michael Jones1

    Hi,

    Try this:

    Open cli and choose option 4

    Execute the command:

    set routing wan-load-balancing session-persistant source-only ip-family all

  • 0 in reply to Rodrigo Pereira

    Hey Rodrigo,

    Were you having a similar issue and this resolve it? The command binds the session to the wan port it started on I assume? I am fairly new to sophos firewalls.

  • 0 in reply to Rodrigo Pereira

    Rodrigo Pereira said:

    Hi,

    Try this:

    Open cli and choose option 4

    Execute the command:

    set routing wan-load-balancing session-persistant source-only ip-family all

     

    hmm, so is the idea that as the WAN address changes due to load-balancing, that it messes up the sync between Outlook and Office365?

     

    I do have dual-WAN connections that i am doing load-balancing, but it isn't done at the Sophos level.  I only have one WAN connection into the Sophos Firewall .  there is an upstream Velocloud unit that deals with the load-balancing/failover along with the corporate SD-WAN. 

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  • 0 in reply to Rodrigo Pereira

    Rodrigo Pereira said:

    Hi,

    Try this:

    Open cli and choose option 4

    Execute the command:

    set routing wan-load-balancing session-persistant source-only ip-family all

     

    hmm, so is the idea that as the WAN address changes due to load-balancing, that it messes up the sync between Outlook and Office365?

     

    I do have dual-WAN connections that i am doing load-balancing, but it isn't done at the Sophos level.  I only have one WAN connection into the Sophos Firewall .  there is an upstream Velocloud unit that deals with the load-balancing/failover along with the corporate SD-WAN. 

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