Does each Isilon node have a static IP address?  Can each Isilon node reach each ICAP server? NANON (not all nodes on network) would produce behaviour like this...  Cheers,Matt 
Hi All,  I have a customer who is using 4 ICAP servers with his isilon ( 4 nodes ). When he run a test, only 2 servers were able to catch the virus. the ICAP configuration was setup correctly.Any help is appreciated.  Best,
ICAP Server Performance Issue