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Sophos is blocking whatsapp even though there is no webfilter or application filter is applied

Alumco SAL

We just upgraded our hardware device from Cyberoam to Sophos XG 106(SFOS 18.0.3 MR-3), everything seems to work except that Sophos is blocking Whatsapp. I tried everything from disabling https scanning & disabling pharming protection. I even created a custom rule to allow Whatsapp based on URL and IP address but still no success. The log viewer doesn't show any blocked traffic because i enabled all the traffic. The website opens without issue but the QR code keeps loading and the desktop version doesn't work.



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  • 0 in reply to Alumco SAL

    Hi Alumco,

    please create a firewalll at the top of your firewall list

    source LAN, network any, destination WAN, network any, service any, allow, log, web use proxy also all application allow all.

    This assumes you have only 1 NAT rule at that is the default?

    Then connect to the application and review the logviewer files for web, application, IPS as well as the firewall tab?

    Then please post a copy of the error the users are receiving when attempting to connect.

    Ian

  • 0 in reply to rfcat_vk

    Hello,

    I created the rule as you requested, everything is working except whatsapp. The log doesnt show any denied traffic all green.

    Time Log comp Log subtype Firewall rule NAT rule Message Message ID Rule type Live PCAP Src IP Src port Dst IP Dst port In interface  Out interface  Protocol Username IPS policy ID Application
    04/12/2020 9:44 Firewall Rule Allowed 10 2 1 1 Open PCAP 192.168.10.191  64136 157.240.196.60 443 Port1 TCP salim.zeidan@alumcogroup.com 0 WhatsApp Web
    04/12/2020 9:44 Firewall Rule Allowed 10 2 1 1 Open PCAP 192.168.10.191  64135 157.240.196.60 443 Port1 TCP salim.zeidan@alumcogroup.com 0 WhatsApp Web
    04/12/2020 9:44 Firewall Rule Allowed 10 2 1 1 Open PCAP 192.168.10.191  64133 157.240.196.60 443 Port1 TCP salim.zeidan@alumcogroup.com 0 WhatsApp Web
  • 0 in reply to Alumco SAL

    Hi,

    what about the web and application logs. Does the GUI ips show any values?
    ian

    sounds to me more like you are using dpi instead of the web proxy?

  • 0 in reply to rfcat_vk

    Hi,

    The IPS doesnt' show any value, the web land the application logs doesnt show any denied traffic either.