ReadyNas not responding to ping or rsync from a single host

ReadyNas 2304 rackmount with 4x1TB

I was unable to reach the ReadyNas unit from a host by ping, ssh or rsync.  Other hosts worked fine.  No diagnostic messages.  I wasn't getting a 'connection refused' message, or permission errors.  Just no response.  Checked IP addresses, connectivity with other hosts etc.  All OK.  

I suspected a routing issue.  The ReadyNas is on two LANs.  I decided to ssh into the ReadyNas.  I ran route -n and saw a route table entry from my non-working host, which is on LAN1, to 192.168.1.1, which is the gateway on LAN2.

I  rebooted the Nas and rechecked the routing table, but it didn't flush the entry.  I manually deleted the route using route del.  Success: The host started working.

Not sure how that entry got in there, guessing by route advertisement from another router.  

Possibly something I did while modifying another router...  If it happens again I will go looking but for now problem solved.  

I am new with this particular unit, but I had been using a ReadyNas Duo for years without any issues.  Originally started out here looking for an answer but wound up solving this on my own.  I thought I would document my effort here in case someone else experiences a similar problem.