Hi, we will be happy to look into your concerns. Could you please direct message us with the service tag of your notebook?   We will require a few more details as well.   1. The other 2 ports you are using on the dock. 2. The resolution you are running on these monitors. 3. Precision 3561 may not have enough bandwidth to run 3 displays in addition to the internal display.   I will be able to share more details, once we have the tag.
Hello! I have a Dell Precision 3561 with a Dell docking station WD19TBS. It also says Reg Type No.: K20A001 and Reg Model: K20A.  I am trying to connect three monitors. All three work for a while and then one shuts off. The one that shuts off is the one that is connected via the HDMI cable. does anybody know why this happens? Thanks!
3 Monitors