Windows Server 2012 R2 periodically unreachable yet services still available

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hello,

our shop installed dozen winserver 2012 r2 servers couple weeks ago. week, have notices odd behaviors reported our networking monitoring tool (solarwinds). @ random times of day, servers icmp unreachable. aside looking @ mt solarwinds console, try manually ping these servers , confirm cannot. yet, example, our "home drive" file server supposedly looses connectivity, yet still mapped , able browse documents; same goes desktops items.

there 1 occasion did loose our resources (home drive, desktop) when happened.

the weird issue connectivity restored after 4-7 minutes. during outage time, cannot ping or rdp servers.

we have looked @ event logs , hbss logs , nothing far reveals error caused issue.

also, not happen @ same time, they're "unreachable" 1 or 2 @ time.

this stumping me, advice appreciated.

are pinging name or address? 'destination host unreachable' have couple different meanings.

this message indicates 1 of 2 problems: either local system has no route desired destination, or remote router reports has no route destination. 2 problems can distinguished form of message. if message "destination host unreachable," there no route local system, , packets sent never put on wire. use route utility check local routing table.

if message "reply < ip address> : destination host unreachable," routing problem occurred @ remote router, address indicated "< ip address> " field. use appropriate utility or facility check ip routing table of router assigned ip address of < ip address> .

 https://technet.microsoft.com/en-us/library/cc940095.aspx

 

 

regards, dave patrick ....
microsoft certified professional
microsoft mvp [windows]

disclaimer: posting provided "as is" no warranties or guarantees , , confers no rights.



Windows Server  >  Windows Server 2012 General



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