Unresponsive error on site in certain geographical locations

My organization’s site is freezing up on all pages and showing an Unresponsive error with code: RESULT_CODE_HUNG for visitors in certain locations in the world including most of the United States and Brazil. What could be some potential causes of this issue? There are other regions where it is not happening at all, such as India.

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I am experiencing this as well. I ended up removing the proxy to see if it would help. Did you happen to find anything more about this issue?