Question : Problem: Tftp error on cisco 2500

how do I stop my router from sending this error

%Error opening tftp://255.255.255.255/network-confg (Timed out)
%Error opening tftp://255.255.255.255/cisconet.cfg (Timed out)
%Error opening tftp://255.255.255.255/routerb-confg (Timed out)
%Error opening tftp://255.255.255.255/routerb.cfg (Timed out)
%Error opening tftp://255.255.255.255/network-confg (Timed out)
%Error opening tftp://255.255.255.255/cisconet.cfg (Timed out)
%Error opening tftp://255.255.255.255/routerb-confg (Timed out)
%Error opening tftp://255.255.255.255/routerb.cfg (Timed out)

Answer : Problem: Tftp error on cisco 2500

Look at your current config - does the "service config" command exist?  If so, the router is trying
to boot from a TFTP server.  This is disabled by default, but can either be manually enabled or can
possibly be a result of problems with your NVRAM.  Any other symptoms or problems with this router?

Take a look at this:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios113ed/113ed_cr/fun_r/frprt2/frcfgfil.htm#xtocid109669