Can not deassert "Physical Scrty" event

Hello,

After I unplugged two NIC-cables on GZ2600 platform the "Physical Scrty" was triggered. I dont need these phyiscal links anymore so I dont need these events asserted

I have no idea how I can deassert them. I tried manually deassert these events:

# ipmitool event "Physical Scrty" "System unplugged from LAN" deassert

Finding sensor Physical Scrty... ok

0 |  Pre-Init  |0000000000| Physical Security #0x04 | System unplugged from LAN | Deasserted

But the sensor is still alive (0x1000 <- bitmask should be zero)

# ipmitool sensor |grep 'Phy'

Physical Scrty   | 0x0        | discrete   | 0x1000| na        | na        | na        | na        | na        | na

SEL shows assert/deassert events though

Web interface for bmc is poor. I can not find corresponding button to reset the sensor there

Could you please advise me how can I get rid of this event ?

Here is my BMC info:

Thank you,