Wagon upload timing out with broken pipe after 30 seconds.

Executing a mvn release goal on a 200+ MB file to the staging deploy repository:

https://oss.sonatype.org/service/local/staging/deploy/maven2

After 30 seconds, the upload fails with a broken pipe exception. I've run this same command on multiple different machines, and they all fail after 30 seconds regardless of the total uploaded data. I've run the upload with both the httpclient and lightweight wagon providers with the same result.

I've validated authentication settings, and everything looks fine. I last ran a deploy against the same repository with a file roughly the same size on Sept 28.