Second Network connection issue after update to 5.12.108

Had no issues prior to upgrade to 5.12.108; we have ex4100. We have two sub networks connecting to NAS unit; after upgrade the second network doesnt work to connect while the first one still works.

Tried to reboot/shutdown but not sure where issue is as the settings were not effected and still there.

Hello,

Please refer to the following KBA article: http://support-en.wd.com/app/answers/detail/a_id/30050/