Server can't ping a valid IP in the same segment while others can

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dear all,

i'm having issue,

server a: ip 192.168.0.42 /24 gw 192.168.0.1

server b: ip 192.168.0.36 /24 gw 192.168.0.1

server c: ip 192.168.0.43 /24 gw 192.168.0.1

if ping server server b  not working

if ping form server server c working fine

if ping server b server working fine

if ping server c server b working fine

windows firewall disable.

regards,

catherine 

looks mac-adress flapping. meaning same mac-adress located on 2 different ports of switch have. 

can login switch/router server linked , see if have errors in eventlog? 

is server connected single rj45 cable router? or more? 



Windows Server  >  Management



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