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Using AWS on sbRIO-9651 is very slow

I've never posted to the NI forum before, but I've got an issue that's been haunting me for days, so I need the community's help!

 

When I use the Amazon AWS VIs on a window machine, they run reasonably fast. I'd like them to run faster, but I'm able to make API calls at about 2Hz, which is sufficient. When I run the exact same code on my sbRIO-9651 though, a single call can take 5 seconds or more. I've attached a screenshot here showing the exact function that's slow, it's a native HTTP function that is password protected so I can't see what's going on inside.

 

Is there something I don't understand about HTTP that would make it run mush more slowly on a cRIO than on a Windows machine? I'm connected to the same network through the same switch on both my windows machine and the sbRIO.

 

Also attached is the exact code I'm using, minus my Amazon AWS credentials. Thanks for your help!

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