Agent communication

[wow-66]

Hi,

Kindly advise on the matter below. We have some of the instance that have installed mcafee agents on it but we could not use the wake up call or the ping buttons to work. Screenshots below. We have open the port 8081 from epo to client server but to no avail. Done a netstat -an and found that the port is open as per below.

Trellix ePolicy Orchestrator 

20201007093327 I #08756 NAIMSERV Wake up agent on NetBIOS name <hostame>...
20201007093336 E #08756 NAIMSERV naSPIPE.cpp(320): Failed to find IP address for <hostame>.
20201007093336 I #08756 NAIMSERV Wake up agent on DNS name <hostame>....
20201007093345 E #08756 NAIMSERV naSPIPE.cpp(320): Failed to find IP address for <hostame>.
20201007093345 I #08756 NAIMSERV Wake up agent on IP address <ip>...
20201007093406 E #08756 NAIMSERV naSPIPE.cpp(338): Failed to connect to <ip>:8081, network error was 10060
20201007093427 E #08756 NAIMSERV naSPIPE.cpp(338): Failed to connect to <ip>:8081, network error was 10060
20201007093448 E #08756 NAIMSERV naSPIPE.cpp(338): Failed to connect to <ip>:8081, network error was 10060
20201007093448 E #08756 NAIMSERV AgentWakeup.cpp(206): Server failed to wake up <ip>, detailed error = -999
20201007093452 I #03576 EPODAL Label cache cleaned; oldsize=2, newsize=

netstat -an | grep 8081
tcp 0 0 0.0.0.0:8081 0.0.0.0:* LISTEN

[Hem]

Hi,

Good morning,

The issue seems with DNS. Are you able to resolve IP address to FQDN of client machine?

20201007093336 E #08756 NAIMSERV naSPIPE.cpp(320): Failed to find IP address for <hostame>.
20201007093336 I #08756 NAIMSERV Wake up agent on DNS name <hostame>....

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[wow-66]

here it is

>>>>>>nslookup <ip>
Server: <ad hostname>
Address: <ad ip>

*** <ad hostname> can't find <ip>: Non-existent domain

[Hem · Accepted solution]

As a workaround, we can update machine details we are waking up to ePO host file (C:\Windows\System32\drivers\etc).

It should be like 

IP address  machine name (1.1.1.1 test.test.com), save the file, flush dns out (ipconfig /flushdns) then try to wakeup agent.

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If this information was helpful in any way or answered your question, will you please select Accept as Solution in my reply and together we can help other members?