If you ever run into periodic DNS look-up or connectivity problems this script may come into use. When pairing this with www.wireshark.org you can help troubleshoot periodic packet-loss issues.
@ECHO off mode con:cols=110 lines=40 COLOR A del ns_log.txt cls echo. echo. echo ----------------------------------------------------- echo starting lookup loop echo ----------------------------------------------------- for /L %%X in (1,1,100) do ( nslookup %%X-DNS-test.mycompany.org 8.8.8.8 if "google"==^%%i (echo Fail on ^%%X) else (echo ok on ^%%X) ) echo ----------------------------------------------------- echo lookup look finished echo ----------------------------------------------------- echo. echo. echo >NUL 2>&1