Problem with several ports on VS-GW2120 V2

Hello.

We have a problem with VS-GW2120 V2 (Software Version:2.1.6).
After reboting device 4 ports (from 31 to 34) disappeared from web-page.



Other ports work fine. Settings on all 44 ports are the same.

"gsm show spans" shows:
GSM span 29: Power on, Provisioned, Up, Active, Standard
GSM span 30: Power on, Provisioned, Up, Active, Standard
GSM span 31: Power off, Provisioned, Down, Active, Standard
GSM span 32: Power off, Provisioned, Down, Active, Standard
GSM span 33: Power off, Provisioned, Down, Active, Standard
GSM span 34: Power off, Provisioned, Down, Active, Standard
GSM span 35: Power on, Provisioned, Up, Active, Standard
GSM span 36: Power on, Provisioned, Up, Active, Standard
GSM span 37: Power on, Provisioned, Up, Active, Standard

Please help.

Hi, sir

please try to change the module with the four ports to other slots.
and you can add my skype:[email protected] for convenient contact.

The problem was solved by power reboot.
Thanks for help.