This pingback issue had been driving me crazy. For several days now, I had been troubleshooting my WordPress installation to check why I am not able to send pingbacks. I spent several hours scouring the internet for any kind of solution. Looks like a lot of people were having the same problem. 

After doing everything in my power to find a solution, I waved my white flag and succumbed to the one stop remedy to everything – a fresh install. After the infamous 5 minute installation and ‘hassle’ free set ups of the plugins, themes, et al, everything seems to be working fine. I have spammed several pingback and trackback tester pages just to check.

So, what was the issue? The culprit is either 1) the All-in-one-SEO-Pack plugin, 2) the previous theme or 3) both of them. I didn’t really test all the plugins one by one. However, one guy was able to solve the issue just by adjusting one setting in the All-in-one-SEO-Pack plugin. I figured, why not just get rid of it. As for the theme, well, I like this one better. 

So if you managed to reach this site looking for a nifty solution to this pingback problem, well, sorry, can’t advise you anything but to do that fresh install. If you do have any insights feel free to share. I sure do want to know what was causing this.