@Somnus , Yes I am able to ping IP 192.168.8.253 in fact this is the interface to access TL-SG3428, and I do can ping 192.168.14.1 or DVR IP (192.168.14.20) but after a couple minutes goes down, some...

I need help connecting (2) TL-SG3428 and creating a VLAND for the CCTV system with will be access only for 2 PCs and 3 cellphones, the CCTV system has it's own switch with is not TP Link and both...