Monday, July 5, 2010

Sonicwall NSA2400

One of our customers recently updated firmware on their NSA2400 and the wan connection began to die as well as the actual firewall appliance becoming unresponsive.

So i thought the unit was faulty as I put a TZ210 in it's place with same config and there were no problems.

I couldnt troubleshoot this during working hours as the customer had a lot of vpns etc. that needed to be up to run their business.So I came in on Saturday and myself and the customer turned off auto negotiate on the wan port and set it to 100Mbps full duplex.

Problem solved!! It was connecting to a Cisco router and that was causing all the fuss. A really simple fix but one that could drive you crazy!

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