I ran tests on my website at webpagetest.org and when I use IE8 on that site in Dulles VA, The website and ads load fine. I then made a test from Singapore because from other tools, it takes longer for Singapore to connect to my site. What's really strange is that adsense ads never load from the Singapore location. Instead I get red lines in the waterfall with error code 12157.
This URL shows what I mean:
Is there anything I can do from a webmaster point of view (such as modifying HTTP headers and/or HTML code) to solve this problem?
And it just gets even worse now. I made an update on my mobile site to load all site images after the ad begins loading. Various tests show successful results, however this particular test with IE8 from singapore keeps failing! In fact, right at the point where IE8 requests the ads, it stops and requests nothing more. very strange.