MongoDB GPG - Invalid Signatures

I'm installing MongoDB on an Ubuntu 14.04 machine, using the instructions at: https://docs.mongodb.org/manual/tutorial/install-mongodb-on-ubuntu/ So I run: sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv EA312927 And then: echo "deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.2 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.2.list Followed by: sudo apt-get update I then get the following warning at the end of the update: > W: GPG error: http://repo.mongodb.org trusty/mongodb-org/3.2 Release: > The following signatures were invalid: BADSIG D68FA50FEA312927 MongoDB > 3.2 Release Signing Key <packaging@mongodb.com> If I ignore the warning and try to run: sudo apt-get install -y mongodb-org I get: > WARNING: The following packages cannot be authenticated! > mongodb-org-shell mongodb-org-server mongodb-org-mongos > mongodb-org-tools mongodb-org E: There are problems and -y was used > without --force-yes Any ideas on how to resolve? Thanks!