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Intrusion Prevention Blocked Office 365 Attachments

Hi,

 

We have had our new XG310 in for about a week now, it has mostly been going ok.

Just today though, outgoing attachments from Outlook all of a sudden stopped sending. (Stayed in Outbox)

I found that all of sudden, IPS was blocking traffic to Office 365.

I removed IPS from the firewall rule and that fixed it... but obviously not ideal.

 

See screenshots, any idea why this might have happened?

We had a similar scenario with our VoIP system, IPS just decided one day that the traffic was no good and blocked it!

Thanks,

Matt



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Parents
  • We have multiple customers that this was affecting but one in particular was also being blocked from DROPBOX.

    Turning OFF the IPS has fixed BOTH DropBox and Office 365.  

    Our support had originally suggested using "lantowan_general" blocking up to level 3 (i.e. not 4/5) which has worked great until today.

Reply
  • We have multiple customers that this was affecting but one in particular was also being blocked from DROPBOX.

    Turning OFF the IPS has fixed BOTH DropBox and Office 365.  

    Our support had originally suggested using "lantowan_general" blocking up to level 3 (i.e. not 4/5) which has worked great until today.

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