External monitor cutting out

Hello,

I don't know how much troubleshooting you've done prior to this.

But I'd try some simple things in order to try to rule out each and every factor.

You can try to use just one of the displays at a time and switch the cables around. If the issue remains it might be an issue with the dock itself

Hello eagan113,

Can you please elaborate the issue a bit further. Does the second monitor stay black or does it sort of turn on and off rapidly when being connected to your Mac?