2008R2 cluster having problems reaching DCs

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i've setup new server 2008r2 fail on cluster running sql 2008r2.  have been starting see intermittent networking issues , can't figure out how fix it.  following available nics , binding order.  
lan team - 172.1.1.x/255.255.255.0
lan 0
lan 1
local area connection* 9 - 169.x.x.x/255.255.0.0
heartbeat - 192.168.x.x/255.255.255.0
san 0 - 172.1.2.x/255.255.255.0
san 1 - 172.1.2.x/255.255.255.0
san 2 - 172.1.2.x/255.255.255.0
mpio configured use san netowrk.

on active node, i'm intermittently loosing connection dc's , other lan servers.  if type nslookup command prompt, usual "dns request timed out" , dns server: unknown.  if try ping ip of dns server or other server on lan network, "destination unreachable." 

if try ping public website, works.  passive node doesn't seem have these symptoms.  have not tried failing on yet, see if issues follow passive node. 

anyone have ideas cause this?

unfortunately, after rebooting both nodes, i'm still having same issues. i'll calling microsoft probably.


Windows Server  >  High Availability (Clustering)



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