Bing search requrning errors

I found out what this was. Bing was blocking my IP. That seemed strange until I remembered that a few days prior to the problem arising I ran a programme that checks the position of my keywords on google.com and bing.com. It seems those repeated searches resulted in a ban from Bing. That was foolish of them because I may well have been planning to run advertising campaigns to support poorly performing keywords but being denied access meant I couldn't do that! My IP has since cleared the bad and all is working again.