Sysmantec Endpoint Encryption on SSD

I am having problem with WesternDigital 128GB SSD and Sysmantec Endpoint Encryption. I use Sysmantec Endpoint Encryption to encrypt the hard drive of the laptop which is Western Digital 128GB SSD. The SSDs only last for about few weeks and it quits. I went through a dozen of SSD and it keeps happening. I wonder if anyone else has the same problem or idea what’s happening. Thank you