frame loss

Hello everyone. I just signed up because i have exhausted all my sources and need both help and opinions. Having issues with my programs. Ivms 4200, or Blue Iris Equipment: Hikvision DS-2CD2342WD-I (x14) Hikvision DS-2CD2T42WD-I5 (x4) HikvisionDS-2DE4220-AE (x3) Hikvision DS-2CD2542FWD-IS (x9)...

Hi all! First of all, sorry for my bad english. A few months ago I installed 3 cameras at my apartment and entryway: one 2cd2432f-iw and two 2cd2132f-is. All cams are chineese, reflashed with multilanguage 5.2.5 by the seller, records to NAS via NFS (HP Microserver with Nas4Free OS) and powered...