Cold boot FLEX200 SFP not coming online

PeterUK
PeterUK Posts: 3,461  Guru Member
100 Answers 2500 Comments Friend Collector Seventh Anniversary
in Security

USG FLEX 200 V5.37(ABUI.2)

So had a power cut that my UPS could not keep everything running then when power come back the SFP looked dead after checking which is connected to a NETGEAR GS110T things I did.

Reboot FLEX from UI no help

Reboot GS110T no help

Unplugged the power for FLEX and plugged back in SFP lights up and working

Accepted Solution

  • Zyxel_James
    Zyxel_James Posts: 663  Zyxel Employee
    Zyxel Certified Network Administrator - Security Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate 100 Answers
    Answer ✓

    During the period of SFP not working, you can collect the console log when plugging into the SFP port, it would print out logs for our investigation.
    However, you already recovered it by power cycling, we cannot check further. Anyway, you may collect them if anything happens.
    Anyway, I suspect it's affected by static electricity, SFP is sensitive to static electricity. That's why you need a power cycling.

All Replies

  • Zyxel_James
    Zyxel_James Posts: 663  Zyxel Employee
    Zyxel Certified Network Administrator - Security Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate 100 Answers
    Answer ✓

    During the period of SFP not working, you can collect the console log when plugging into the SFP port, it would print out logs for our investigation.
    However, you already recovered it by power cycling, we cannot check further. Anyway, you may collect them if anything happens.
    Anyway, I suspect it's affected by static electricity, SFP is sensitive to static electricity. That's why you need a power cycling.

  • Richard44160
    Richard44160 Posts: 2  Freshman Member
    First Comment

    Bonjour, je rencontre le même soucis, même après remplacement du module SFP.

  • Zyxel_Melen
    Zyxel_Melen Posts: 2,577  Zyxel Employee
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate

    Bonjour @Richard44160,

    Pourriez-vous partager avec nous votre modèle de pare-feu, votre modèle SFP et le modèle de périphérique de connexion ?

    Zyxel Melen


Categories

Security Highlight


Read more

Security Help Center

EnglishTiếng ViệtРусскийไทย中文（台灣）