I thought that some bugs will be fixed during the time. Ok, sometimes it happens with a new KB :-).
Today I had to upgrade a 2012 R2 ConfigMgr Server to 1606 and then 1610. 1606 is not an big deal as you have the baseline ISO for that. After that you will receive the 1610 in the console. But it hangs still with the status “Downloading”.
As one solution you will find to restart the SMS_Executive. But with restartig the service you won’t still be able to install the CB 1610. Restarting the SMS_Executive restarts also the SMS_DMP_Downloader and you can follow the process using the dmpdwonloader.log under the log folder from your Primary Site server.
In that log you recognize that some cab files can’t be downloaded. All sources will be downloaded to the CM “Program Files\Microsoft Configuration Manager\EasySetupPayload” folder. The log shows you the download link of the mssing root cab file and also the used proxy server. Copy that link to your preferred browser link bar and download the cab file. Place it in the EasySetupPayload folder. – Restart SMS_Executive. The download will continue after 1-2 minutes.
In my case was ConfigMgr not able to download all the prereq tools to the “redist” folder. Some where Ok, but not all. 14 tools where still missing. If you have the same issue, navigate to \EasySetupPayload\”extractedCABName”\SMSSETUP\BIN\x64 and run setupdl.exe to download all the Prereq tools. You can directly download the contet to the \EasySetupPayload\”extractedCABName”\redist folder.
Restart the SMS_Executive Service again. The Configuration Manager 1610 Update should now switch to the status Available.
Have fun installing 1610.