If you are experiencing issues with the SD or micro SD ports on your hub or dock, try the following troubleshooting steps. 

• Firstly, try using a different laptop to see if the issue persists. 
• If the problem continues, ensure that you have fully inserted the card and try a different card.
• Lastly, confirm that the hub's LED light is on when connected to a laptop and try a different hub to determine if the card is working correctly.

If the microSD card is readable but not writable, please try the following troubleshooting steps at this link: What-should-I-do-if-the-microSD-card-is-readable-but-not-writable-through-the-card-reader-hub-dock

If the SD card is readable but not writable, please try the following troubleshooting steps at this link:
What-should-I-do-if-my-SD-card-is-readable-but-not-writable-when-connected-to-the-card-reader-hub-dock

If none of the above steps help to identify and resolve the problem, contact us for further assistance. Mention the steps you have already taken for a quicker solution.