F5 is upgrading its customer support chat feature on My.F5.com. Chat support will be unavailable from 6am-10am PST on 1/20/26. Refer to K000159584 for details.

Forum Discussion

karthickyokesh_'s avatar
karthickyokesh_
Icon for Nimbostratus rankNimbostratus
Jan 25, 2018

LTM_NODE : Could not connect.; Failed to succeed before deadline

Hi   We have a production LTM which is running on version 11.5.3, buildin 2.0.196, Hotfix HF2.   Frequently I can see some of the nodes are down due to below error.   Could someone help me...
application delivery
LTM
Ilian_Ivanov's avatar
Ilian_Ivanov
Icon for Nimbostratus rankNimbostratus
Jan 25, 2018

Hello,

 

This is a normal error showing that applied monitor failed. There could be a lot of reasons but you can check if the server is listening on the correct port and your FW rules between the F5 and the server.

 

Regards