Unable to RUN Blastlocal function of Bioinformatics Toolbox: DNS server not authoritative for zone

I have installed NCBI Blast Executable in my local computer running Windows 8.1. from <ftp://ftp.ncbi.nlm.nih.gov/blast/executables/blast+/LATEST/ncbi-blast-2.2.31+-win64.exe>.

I've added the executable PATH (C:\Program Files\NCBI\blast-2.2.31+\bin) in the System PATH. But when i run command like

InputdbValue = 'yeast.fasta';
blastformat('Inputdb', InputdbValue);

It show the error-

Error using blastformat (line 154)
FORMATDB produced the following error(s): DNS server not authoritative for zone.

Similarly when i try to execute blastlocal i got the similar DNS error-

data = blastlocal('inputquery', 'testSeq.fasta',...
           'database', 'yeast');

and the error is -

Error using blastlocal (line 294)
BLASTALL produced the following error(s): DNS server not authoritative for zone.

I'm using matlab version R2014b.

Now It would be very helpful for me if you kindly give any hints about the DNS problem. Thanks.