Sonicwall ssl vpn client disconnects when change network code#
The version of the VPN Concentrator code.In order to resolve this problem, determine these things: Once three packets are missed, an IPSec termination point (VPN Concentrator) concludes that it has lost connectivity with its peer (VPN Client). The Internet Key Exchange (IKE) keepalive packets are sent every 10 seconds by default. The VPN Client continues to send DPD requests every five seconds until it reaches the number of seconds specified by the Peer Response Timeout value.
In order to adjust the setting, enter the number of seconds in the Peer Response Timeout field. The minimum number of seconds you can configure is 30 seconds, and the maximum is 480 seconds.
The default number of seconds to wait before the termination of a connection is 90 seconds. If the network is unusually busy or unreliable, you need to increase the number of seconds in order to wait before the VPN Client decides that the peer is no longer active. The VPN Client uses a keepalive mechanism called DPD in order to check the availability of the VPN device on the other side of an IPsec tunnel. This issue can occur because of connection that the client uses. VPN Client loses these packets means that the peer no longer responds to ACK for DPD and therefore is not reachable. The disconnections happen because of VPN client loses Dead Peer Detection (DPD), keepalives on the path.ĭPDs are used to verify if the remote peer still answers because it is unsafe to keep a connection active if the remote device is dead.