Hi All 
  
First post  
  
Not sure if this is the correct section for this question, if not sorry, just let me know where and I will redo 
  
Anyway onto the question, I have a HIKVision DS-9664NI-ST 64 channel IP recorder, no issues all works great, I have 15 HIKVision cameras (DS-2CD2732F-I & DS-2CD2632F-I) and 25 TrendNET cameras (TV-IP311PI), again, no issues, however, my issues are when I try and connect a number of existing analogue cameras, large PTZ external units 
  
I brought four TrendNET TV-VS1P video servers as I had no issues with TrendNET cameras, but I cant get them to work, I then brought a Axis M7014 4 channel video server as Axis was listed as a camera type on the NVR, but only channel 1 work, the remain 3 input cannot be selected as when you try and add a second camera it say the IP address is already in use.  
  
Any ideas on how to get the TrendNET video servers working or how to get the remaining 3 channels on the Axis working, I have contacted the tech support for HIKVision but they did not help. 
  
Regards 
  
Stacey