FortiGate
FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
nprakash
Staff
Staff
Article Id 335681
Description This article describes the error message 'Write I2C bus:3 addr:0xe2 reg:0x00 data:0x00 ret:-121' noticed in the console on FG40X-F models.
Scope FortiGate 40X-F.
BIOS version 06000100.
Solution It has been noticed that FortiGate 40X-F models with BIOS version 06000100 print the below error during the boot-up process:

FortiGate-401F
Ver:06000100
Serial number:FG4H1FTXXXXXXXXXX
RAM activation
......
Initializing firewall...
System is starting...
Write I2C bus:3 addr:0xe2 reg:0x00 data:0x00 ret:-121.
Write I2C bus:3 addr:0xe4 reg:0x00 data:0x00 ret:-121.

 

FortiGate will not be able to get the transceiver status/info due to this issue. Collect the console log which shows this error and the output of the below-listed command from FortiGate CLI.

FGT-A # get sys status | grep -i  bios
….
BIOS version: 06000100

Open a ticket with FortiGate TAC with the logs collected for further troubleshooting on this issue.