The DVR's are all on different ports already. Yes, we have to run trunk mode between the switches because we have multiple vLANs on each switch but the DVR that is plugged into the same switch as the computer is still losing connection. Trunking doesn't come into play there.

Jesus Ragusa said
Hi, 

can you please draw some sort of network lay or something to understand a bit better how you have this connected? have you tried what I suggested before? DVR and PC on the same switch.

Thanks

Our network has over 2200 devices on it. I have a network diagram but sending that would not help you. To troubleshoot this issue I am plugging the DVR and the laptop directly into the same Cisco 2960S Switch to rule out other network/configuration issues.

The Smart PSS software is not the issue because I have the same issue when using Internet Explorer. I tried plugging into a cheap Netgear router and the DVR works fine. But plugged into a Cisco Catalyst 2960S it will not work even if I plug the DVR and laptop directly into the same Cisco 2960S Switch. Here is the port info on the switch:

Show run:

interface FastEthernet0/10
description TC2 - DVR system
switchport access vlan 151
switchport mode access
switchport port-security maximum 6
switchport port-security
switchport port-security aging time 30
switchport port-security violation protect
switchport port-security aging type inactivity
no snmp trap link-status
spanning-tree portfast

Show int:

FastEthernet0/10 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is xxxx.xxxx.xxxx (bia xxxx.xxxx.xxxx)
Description: TC2 - DVR system
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:01, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 317
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 1000 bits/sec, 3 packets/sec
5 minute output rate 3000 bits/sec, 5 packets/sec
40815643 packets input, 38654938479 bytes, 0 no buffer
Received 2197551 broadcasts (1252 multicasts)
0 runts, 0 giants, 0 throttles
1 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 1252 multicast, 0 pause input
0 input packets with dribble condition detected
112137425 packets output, 11361971227 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out

IOS Version:

Cisco IOS Software, C2960 Software (C2960-LANBASEK9-M), Version 12.2(55)SE8, REL

I was just recently told that all these DVR's worked on the old Cisco 2950 Switches that we had but they don't work on the 2960S that we installed. I think the encryption on the new switches(Cisco changed their encapsulation) might be causing the issue but I cannot turn that off on a per port basis and the switches have to have it enabled on our network. Port Security might be an issue too but...

Before I start messing with the switch config I would like to know if there is a newer firmware we can install on the DVR's? We are currently using system version 2.610.GV00.0 firmware on the DVR and Web version 2.1.7.72. Those are about 2 years old.

Is there a firmware upgrade I can download that is compatible with the newer Cisco switches? I didn't see anything on your website for downloading updates for the DVR itself. 

Jesus Ragusa said
So basically when the recorder and your PC is connected to the netgear router you then have access to the NVR?

Yes, but that doesn't resolve my issue. I need to know how to configure the DVR to work on a corporate network that uses Cisco equipment. They worked on Cisco 2950 switches but they will not work on 2960S switches.

Will a firmware update fix the issue since these DVR's have 2 year old firmware?

There is an update firmware feature on the DVR's but your website does not have any place to download DVR firmware.

Jesus Ragusa said
So if they worked on Cisco 2950 switches but they will not work on 2960S switches then is not the DVR. It most be something in the switch causing this. Unfortunately in order to know if there is new firmware I will need a model number and firmware date and version, Also need pictures of the board front and back plate of the unit. Our hardware has change dramatically. 

When you say pictures of the board, do you mean pictures of the motherboard on the inside of the unit?

Jesus Ragusa said
Correct.

Ok, that will require taking the DVR's out of the racks to open them up so it will be more time consuming. I will update this thread once I get the pictures.