A：Please check to see if FSR202 is currently in the process of auto rebuilding.
If it is, please wait for rebuilding to finish for full performance. If not, then please follow the below instruction to find out possible root causes:
1. Examine if connected SATA cables are too long or outside of standard spec. for connector type and quality.
2. If cables are within standard, please turn off the computer, remove both hard drives from FSR202 and connect them directly to computer to check if they read / write data normally.
Bad sectors on hard drive will affect performance and prevent proper reading / writing of data.