having a bit of a problem with VM and NLB. im using VM Server and any network changes cause it to freeze up (known issue, cant find a way to resolve it), so when I went to add the server to the NLB it locked it up, now when it boots there is no network connection because its half configured. I have yet to figure out why the connection doesn’t work, but something to do with what the NLB wizard did... any idea how to resolve this so I can finish the process of adding it in? Thanks Justin Justin Rich http://jrich523.wordpress.com Please remember to mark the replies as answers if they help and unmark them if they provide no help.

1. I would recommend to resolve the first problem and then the second one 2. You have not given any specific data about the server used and the same is true about the network configuration 3. The are known problem with Broadcom NICs and I would figure out here with additional NIC settings, namely the disable the IPv4 Large Send Offload setting. 4. I have found that many problems with network did solve the vendor's NIC driver. To name one, it was vlan functionality. Check carefully what the integration tools support in virtual NIC functionality.

its a VMWare Server setup, so im forced to use the Intel e1000 NIC, which, has a known problem of locking up the VM when network changes are made in win2k8 R2. I would love to fix that problem, but I have no choice. VMware has yet to resolve it. if you have ESX you can select a different adapter but in looking for a resolution all I've found is posts on the VMware site saying its a problem, with no resolution. so as the node is remotely configured and network settings are changed the VM locks up, upon reboot there is no longer any network access (im sure due in part to the partial network config for the NLB) so, if someone knew the particular settings required in an NLB, I could probably get it back online, and then once the nodes see each other I would assume (and hope) that they try to validate and point out any issues (as I've seen it do with other issues) sorry I should have been more clear on what I was looking for. not so much a solution to the problem but more so an understanding of the network config of an NLB node. thanks for responding. Justin Rich http://jrich523.wordpress.com Please remember to mark the replies as answers if they help and unmark them if they provide no help.

Hi Justin, Thanks for posting here. You might take look the registry keys “AliveMsgPeriod” and “AliveMsgTolerance” : http://technet.microsoft.com/en-us/library/cc781392(WS.10).aspx#w2k3tr_nlb_tools_jybo for more , please refer to the introductions in the article below: How Network Load Balancing Technology Works http://technet.microsoft.com/en-us/library/cc756878(WS.10).aspx Thanks. Tiger Li Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Thanks for the direction, I'll look in to that. Justin Justin Rich http://jrich523.wordpress.com Please remember to mark the replies as answers if they help and unmark them if they provide no help.

Hi Justin, Thanks for posting here. You might take look the registry keys “AliveMsgPeriod” and “AliveMsgTolerance” : http://technet.microsoft.com/en-us/library/cc781392(WS.10).aspx#w2k3tr_nlb_tools_jybo for more , please refer to the introductions in the article below: How Network Load Balancing Technology Works http://technet.microsoft.com/en-us/library/cc756878(WS.10).aspx Thanks. Tiger Li Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.