Network And NVR Problems/Questions

I have had an ongoing issue of one GeoVision IP box camera running for 3-4 day's then loosing connection on network or "connection loss" on NVR since installation. This install is at my boat storage unit 100 miles south of Houston and no remote viewing hard to examine. I thought I had it fixed and I posted a reply (why are my cameras falling off line)thinking I was helping of course fix didn't as instructed by GeoVision. I needed to get video of domestic dispute for clients lawyer after wife took 100k boat.

As I started to review the recorded video the NVR software it became so corrupted machine would reboot every time I entered search mode (files were ok on drive thank God). Brought machine to office and the DVR card in machine failed on repeated start up's then power supply within minutes of each other. I pulled video card reinstall on another machine it failed so mother board was ok. I have since purchased new capture card and power supply uninstalled NVR software and reinstalled newest version. Then repaired recorded data based because I had lost IP cameras completely in drop down menu so that fixed it.

Nevertheless it was brought to my attention (network engineer) my subnet address need to all match or this could attribute to my problems. I have no router or internet connection he stated gateway mismatch would not drop signal GeoVision disagreed said third octave needs to match gateway factory setting 192.168.0.1 I need more opinions on my situation.

Network card IP on machine is: 192.168.88.100 Subnet mask: 255.255.255.0 Gateway: 192.198.88.1

I am using Avalan 5.8 MHz radios set at 192.168.88.10 and .12 for pair. I spoke with Avalan technician Tuesday before failures as we measured bandwidth signal strength, etc. I have 3-IP cameras not a problem with very good frame rates on recordings and live view. I mention this prior to failure IE or Google direct login showed live video as NVR said "no connection" .

Sunday with repaired machine I looked at both radio's and subnet mask was 255.255.0.0 on both radios never checked it. I changed it to match network card on machine.

I then checked subnet and set the gateway as 192.168.88.1 on cameras it was 192.168.0.1 despite what he said figuring it couldn't hurt. Does this have any relevance (gateway settings across the board) to my networking if not using a router and just a switch? All suggestions welcome will return after Thanksgiving on Friday to see if this theory has any merit hopefully connection stays up. Not sure what video streams other than H.264 camera is sending system says 2 Codec sreams in querry when adding cams to software. I'm guessing with corrupted software viewable on IE and not NVR there are different video streams H.264 and JPEG and if so how is that possible when the NVR says "connection loss" and still viewable through browser?

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