Thanks for the suggestion, unfortunately ARIN-WHOIS which I had been using since 1996, does not function for me on IP searches and regardless of browser.
I use another registrar for IP searches.
Some name searches will function for me, however only if I've the correct netname.
I'm not the only one that has ARIN-WHOIS difficulties, others in this forum will express the same frustration. Until about two years ago, even subnet searches were allowed at ARIN-WHOIS with the results listing all sub-classes of a range.