ZBX_TCP_READ() timed out

[d31m0s]

Hi All,

I can not get any data from a server agent, and I receive this error:
Get value from agent failed: ZBX_TCP_READ() timed out

Zabbix Agent is installed and running on a Suse 12 and any SeLinux, SuSEfurewall2 are disabled.

Some other servers in the same subnet are working.

If I run this command from the Zabbix server:
zabbix_get -s "serverip" -p 10050 -k system.uptime
Answer:
Zabbix_get:Timeout while executing operation

On the other hand, the communication is ok if I try the connection from Zabbix server with:
nc -v -z "serverip" 10050
or
telnet "serverip" 10050

Server hostname in Zabbix frontend is the same as the server name.

Trying tcpdump the communications looks ok and packages are transmiting.
tcpdump -i any -n tcp port 10050

I don't know what else could I try. Any other ideas to find where the problem is?

Thank you very much.

[d31m0s]

Finally, we found that the problem was on the routing table.
The route to contact Zabbix frontend was different.

Just adapting the routing table to the default gateway.

[d31m0s]

Hi, I had to modify the file /etc/sysconfig/network/routes in the host and assign the correct default gateway in the route.
Otherwise when I was executing the traceroute command to zabbix frontend, it was showing diferent hops.