will not download 15 from 13 says mirrors wrong

[ross]

Ubunt

ProblemType: Bug
DistroRelease: Zorin OS 10
Package: ubuntu-release-upgrader-core 1:15.04.14.1 [origin: unknown]
ProcVersionSignature: Ubuntu 3.19.0-30.33-generic 3.19.8-ckt6
Uname: Linux 3.19.0-30-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.4
Architecture: amd64
CrashDB: ubuntu
Date: Tue Feb 9 12:03:26 2016
InstallationDate: Installed on 2015-07-31 (192 days ago)
InstallationMedia: Zorin 9 trusty - Release amd64 (20140729)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to vivid on 2016-02-09 (0 days ago)
VarLogDistupgradeAptlog:
 Log time: 2016-02-09 12:02:20.306979
 Log time: 2016-02-09 12:02:27.265672
 Log time: 2016-02-09 12:02:46.123806
 Log time: 2016-02-09 12:03:32.125524
VarLogDistupgradeTermlog: