Plex Version Update not working in Netgear R9000

//Plex Version Update
Enable Automatic Plex New Version Update
Current Plex version: 1.9.2.4285-9f65b88ae Sep 25, 2017
New Plex version: 1.10.1.4602-f54242b6b Dec 13, 2017
“Check size fail.”//

//A new Plex version is available. Do you want to update? Update Now//

The enable Automatic Update is unchecked and I manually update it by checking “Update Now”.

After a few seconds the error message appears: “Check size fail”

Anyone know how to fix this update manually??

Automatic update doesn’t work either…Thanks.