AdSense Ad unit doesn't show up! Need help!

Greetings,

My site never had any issues until couple of hours ago when AdSense stopped showing one of the Ad units on single article page. link is bloghash.com please click on any single post entry and on the top, just beneath the title, there is a 480x60 Ad unit which doesn't show up at all. The code for the same was copy/paste from AdSense without any modification. However, there is another ad unit bottom of the page 120x240 which shows up just fine.

Any help to isolate the problem is greatly appreciated.

Thank you in advance.

 

Did you just add the 480x60 ad recently? Cause new ads aren't showing up for me either, although all the other ads are fine. Weird.

 

I added it couple of hours ago. I am not sure if the ad unit is not showing up cos I also created a new channel or something else is wrong.
Thank you for responding. Feels good to know that I am not the only one with this issue.

 

I also opened a ticket with AdSense support but they will usually respond after 48 hours only. Lemme try to use an already created channel id in the ad unit code and test..

 

yeah I created a new channel as well. Try doing it without a channel, maybe it will work then?

 

Nope, that did not work with an old channel or without a channel too..! Something very strange..

 

Ok, I used adsense code of one of the already displaying 480x60 ad unit and that seems to have worked. This increases the complexity of the problem

 

I have the same prob but I just added new channels but also optimized my homepage for other keywords.