Thursday, September 10, 2009

How To Clear Connections On A Sonicwall Without Restarting


Log onto your sonicwall.  Once logged on, change the URL from http://x.x.x.x/main.html to http://x.x.x.x/diag.html

Click Internal Settings button.

Scroll to bottom and click Flush Connections button.

This happened to me after a client's Sonicwall reached the maximum number of connections.  On the System->Status page the Current Connections was 65536.  The maximum connections that this Sonicwall with this firmware can have when using GAV/IPS is 65536.

You can find out maximum connection information by navigating to System->Diagnostics.  In the Tech Support Report section check all four boxes and click Download Report.  Save the report to desktop.  Open report and search for “Max Connections when using GAV/IPS”.  Compare that number with the number Status page.

When the maximum connections have been made, the logs should have an entry stating:

The cache is full; 65536 open connection; some will be dropped.

The above was listed for me on the Status page in the Latest Alerts section.

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