Started this simple upgrade for Firepower Management Center (FMC) from version 6.2.0 to 6.2.2 and ended up with TAC case and many troubleshooting hours. It was a non-patched install of 6.2.0. Readiness Check passed but after 70% of the actual upgrade I got an error: System call to mkdir(/var/sf/sifile_download) Failed: …
Category: Troubleshooting
FirePower Management Center (FMC) crashed one day refusing GUI or SSH access. After reboot SSH was back but GUI was painfully slow. With the help from TAC discovered a well know bug in UCS BIOS which causes loss of CPU on the server after a reboot. You can check the …
Following the upgrade from ISE 2.1 to 2.3 BYOD process for Mac OS stopped working with the error “The request timed out”. It was working prior to the upgrade and the rest of endpoints (Windows, iOS, and Android) completed BYOD successfully. I could not find much useful information in ISE …
Another case of eStreamer failure after FMC upgrade. This time after upgrade from 6.2.0.2 to 6.2.0.4 it worked for a week and after reboot ceased to send longs to Splunk.The following errors can be seen in the log. firepower SF-IMS[8734]: [20144] Event Streamer:sfestreamer [INFO] Estreamer_Poll – Got Try Again while …
I was setting up a site to site VPN over MPLS link and ran into this error message: Inbound TCP connection denied from … to … flags SYN on interface… This error would generate when traffic was entering Hub ASA and was suppose to traverse VPN tunnel and reach the …