Slow upload speed on ZyWALL 310

vladimire
vladimire Posts: 8  Freshman Member
First Comment
edited April 2021 in Security
I have an issue with a slow upload speed on a ZyWALL 310. I have gigabit fiber and when testing the speed I get over 900 mbps download, but only about 100 mbps upload. When connected directly with my PC to the FIOS modem, the upload speed is over 900 mbps.The firmware on the router is 4.31. Does anybody have an idea how to improve that?

Thank you

«1

All Replies

  • PeterUK
    PeterUK Posts: 3,503  Guru Member
    100 Answers 2500 Comments Friend Collector Seventh Anniversary
    Try disabling BWM.

    Maybe a cable between PC to ZyWALL 310 or ZyWALL 310 to FIOS modem is bad.
  • vladimire
    vladimire Posts: 8  Freshman Member
    First Comment
    BMW was not enabled to begin with... I tested with a different cable and the result was the same.
    Thank you for the suggestions.
  • Jeremylin
    Jeremylin Posts: 166  Master Member
    First Answer First Comment Third Anniversary
    Do you enable any UTM feature?
    The firmware version your are using is quite old, you may check with firmware v4.38.
  • vladimire
    vladimire Posts: 8  Freshman Member
    First Comment
    No UTM is being implemented. I will find a suitable time to update the firmware and retest.
    Thnk you for taking the time to look at this.
  • vladimire
    vladimire Posts: 8  Freshman Member
    First Comment
    Just upgraded the firmware, same upload speed as before, no change.
  • PeterUK
    PeterUK Posts: 3,503  Guru Member
    100 Answers 2500 Comments Friend Collector Seventh Anniversary
    Maybe see if its the given MAC your PC has thats getting a higher speed by using clone by host option in the ZyWALL 310 on the WAN port.
  • PeterUK
    PeterUK Posts: 3,503  Guru Member
    100 Answers 2500 Comments Friend Collector Seventh Anniversary
    also try
    https://businessforum.zyxel.com/discussion/4494/tip-for-getting-faster-throughput-on-usg-vpn-zywall#latest
  • vladimire
    vladimire Posts: 8  Freshman Member
    First Comment
    Peter, neither had any impact on the speed... I really appreciate your effort to help.
    Thank you!
  • PeterUK
    PeterUK Posts: 3,503  Guru Member
    100 Answers 2500 Comments Friend Collector Seventh Anniversary
    Did you try putting the PC MAC in the ZyWALL 310 wan port?
  • vladimire
    vladimire Posts: 8  Freshman Member
    First Comment
    Yes, i did. No difference.

Categories

Security Help Center

EnglishTiếng ViệtРусскийไทย中文（台灣）