There's still one difference. The logs show different certificates:
. Verifying certificate for "Egnyte, Inc." with fingerprint 01:a8:4e:23:ff:6a:a1:ea:ee:fc:cc:ba:08:58:b1:ad:bd:6b:c5:fc:fd:0d:45:ce:75:c6:b0:ef:16:b7:ec:fe and 19 failures
. Verifying certificate for "Egnyte, Inc." with fingerprint 34:5c:06:02:88:eb:ef:32:41:25:ab:7e:81:b2:fc:f4:4d:ee:8e:6f:b5:84:8b:e0:71:61:65:a0:76:85:7a:b9 and 20 failures
But the certificates are consistent between the two "Egnyte" and the two "KERS-Egnyte" logs. So it's not like the certificate is volatile. It seems like you are not actually connecting to the same server with the Windows 10 and 2012 machines. Please check with your network administrator.