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Ended up being problematic patch cable.
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I have recently given access via SSL VPN to many of our emerency responders and every few days all SSL VPNs stop working. They act like they are connecting and then drop. They are connecting to an X550e (10.2.7) with the latest client. If I disable SSL and remove then re-add the users the issue goes away for a while but always returns. As a troubleshooting step, I have unchecked the &quot;enable TCP SYN Checking&quot; to no avail.<br />
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Any help would be much appreciated
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I have recently given access via SSL VPN to many of our emerency responders and every few days all SSL VPNs stop working. They act like they are connecting and then drop. They are connecting to an X550e (10.2.7) with the latest client. If I disable SSL and remove then re-add the users the issue goes away for a while but always returns. As a troubleshooting step, I have unchecked the "enable TCP SYN Checking" to no avail.

Any help would be much appreciated

Watchguard X550e SSL VPN drops - TCP RST packet without an associated connection

Hardware-based firewalls provide more sophisticated protection for inbound and outbound traffic than the simple Windows software firewall or the basic NAT firewalls found in routers. These devices implement techniques such as stateful packet inspection, deep packet inspection, and content filtering; and may include built-in antivirus and anti-malware protection.