Dell R710/Broadcom IP issue

neil_g

neil_g

neil_g

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really odd one this, i have a dell r710 server on 2008R2 which has a broadcom bcm5709c 4 port NIC.

the 4 ports are all teamed for load balancing and failover and have a static IPv4 set.

regularly (2-3 times a day) the team drops the statically assigned IP and picks up 192.168.10.1 from DHCP. this then for some reason causes an IP conflict message on the server and it updates DNS with the new IP.

the server can still be contacted on the correct IP but as DNS is now wrong you cannot contact it by name until you correct DNS and flush.

as this is an exchange server and it works on names its particularly annoying.

any ideas? im tearing my hair out..
 
oh and ive tried setting a reservation in DHCP for the correct IP and MAC of the team and this doesnt help.
 
Last edited:
was odd, windows thought it had 2 IP address according to the NIC status. one was the static and the other was a DHCP address (on the DHCP server it was from a MAC address that was twice normal length) .tried a couple things, updated the NIC which didnt work. in the end found an article that suggested deleting the config registry key under local machine-currentcontrolset-network which post reboot seems okay (so far).
 
well that didnt work... seems to be doing the same issue again.

it wouldnt be anything to do with exchange 2010 DAG would it?
 
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