Of Subdomains & funny behaviors…

The funniest thing has happened: I setup two websites on my account domain1.com (in public_html/) and domain2.in (in public_html/domain2/) using addon domains on cPanel. I also created a subdomain sub.domain2.in (at public_html/domain2/sub/) using subdomains in cPanel & setup a WP site.

It was working fine until a couple of days ago, when ONLY the _subdomain_ stopped getting resolved at MY end – and MY end only!! For some strange reason, I can access both the domains, viz. domain2.in & domain1.com – but I can’t access sub.domain2.in!

I checked it on downforeveryoneorjustme.com & it says the site is up. I can access it thru proxies like anonymouse. But I haven’t been able to access it from my home in Mumbai or Pune – so it’s not location-specific or ISP-blocking either!.

I am a few frown-lines away from tearing my hair out. I can’t figure out what’s wrong? Have I blocked myself by mistake thru some WP plugin?

Any help, support, explanation would be super-appreciated!

Thanks in advance!