Windows server 2008 R2 64 bit, Using two LANs one for the domain and the other for a VLAN connection. The VLAN connection is having the problem. The VLAN is being used for a security camera network where the camera images are stored on the server. There is a large amount of streaming to the server where the number of packets received is quite large. The problem is that the VLAN network adapter stops receiving packets after a time frame between 8 to 11 hours of up time. After a period of days observing I found that about when the adapter stopped there was a receive packet count around 450 billion to 510 billion. When I look at the status when the packets are not receiving I see the count to 0 from the last count of 400 billion. To get the adapter working I disable the network adapter and then enable and the adapter starts working again. I am wondering if there is something in the O/S that only allows so much traffic.

First of all I recommend some analysis with Performance tools. If you find problem with queues on network interdace, CPU or disk, then you should do some hardware adaptation. It is pretty a lot of data. If the NIC queue is longer, then use either faster NIC or connect more NICs into team. If the storage is an issue, then faster disk controller, faster disks, large RAID cache and larger RAM is solution. Similar reasoning is for queue on CPU - solution is more cores... Check the case that the problem is on the camera side (does the camera send packets without any pause) Consider taking images only when there is something moving in the scene, if the system is for security. If nothing helps from the above, then reconsider the system and buy a special one, that is designed for this purpose and has appropriate throughput.

Hi, Have you checked the Power Saving options on this network adapter in Device Management? They can produce such problems sometimes... T.