Just tried again, same person, same session, just reloaded the page and now I get:
<?xml version="1.0"?>
<RateResponse><Package ID="0"><Service>EXPRESS</Service><ZipOrigination>91403</ZipOrigination><ZipDestination>94582</ZipDestination><Pounds>0</Pounds><Ounces>2</Ounces><Container>None</Container><Size>REGULAR</Size><Machinable>FALSE</Machinable><Zone>4</Zone><Postage>17.45</Postage></Package><Package ID="1"><Service>FIRST CLASS</Service><ZipOrigination>91403</ZipOrigination><ZipDestination>94582</ZipDestination><Pounds>0</Pounds><Ounces>2</Ounces><Container>None</Container><Size>REGULAR</Size><Machinable>FALSE</Machinable><Zone>4</Zone><Postage>1.34</Postage></Package><Package ID="2"><Service>PRIORITY</Service><ZipOrigination>91403</ZipOrigination><ZipDestination>94582</ZipDestination><Pounds>0</Pounds><Ounces>2</Ounces><Container>None</Container><Size>REGULAR</Size><Machinable>FALSE</Machinable><Zone>4</Zone><Postage>4.80</Postage></Package><Package ID="3"><Service>PARCEL</Service><ZipOrigination>91403</ZipOrigination><ZipDestination>94582</ZipDestination><Pounds>0</Pounds><Ounces>2</Ounces><Container>None</Container><Size>REGULAR</Size><Machinable>FALSE</Machinable><Zone>4</Zone><Postage>8.25</Postage></Package></RateResponse>
Does anyone have an idea why this is occuring, is it USPS? I know what the 500 error indicates, but why does this continue to happen?