Each NW host uses the ports 7937 and 7938 (for the built-in portmapper). Make 
sure that these are available before you start nsrexecd.

NW has the intention to repeat error messages more than necessary. Some appear 
about 50..60 times/s. You can not change this.

Probably, the storage node list for the clients is not right so the media is 
expected at another (remote) SN.

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