Thanks for the heads up. I've just installed 4.9.30-2+deb9u2 to see if that resolves my issues. I had been running my 4.11.8 kernel with no issues for 25 days before upgrading to Debian's backported 4.11 kernel. Sadly, the same day I upgraded to the backported kernel, it hung! -- Matt Horan matt@matthoran.com http://matthoran.com/