Ok, so trying the same getURL in the basic alert manager works, but not in the advanced alert manager.... Please help!!
Running into the same issue myself. I did have one go out but all subsequent others are doing the same.
After some tinkering around, I got it to work, but I'm slightly confused how I got it right, so here is what I changed, added the config in bold to the following files, and restarted solarwinds services.
<defaultProxy enabled="false" />
Let me know if that did the trick.
OH and the config in bold should be added before </configuration> in the respective files.