Can't Access GS1900-24HP After Firmware Upgrade on the Network

I just updated to the latest firmware on a GS1900-24HP that I purchased in 2015. After resetting, the admin credentials would not authenticate and I could not login. The release notes mentioned an algorithm change, so I reset the switch (Held down the button on the front 10 seconds and the unit power cycled). Now, the switch does not come up a network as on the network. I've reset it 3 or 4 times now, and no dice. The switch still functions as a switch, but it won't come on the network as Is there any recourse? It doesn't look like this model has a COM port.

Accepted Solution

  • mMontana
    mMontana Posts: 635  Guru Member
    Answer ✓
    Did you look for a "not expected" IP address on your DHCP server?

All Replies

  • Ha! thanks, that found it. Seems so obviously after the fact.
  • mMontana
    mMontana Posts: 635  Guru Member
    It was one of the options, the Switch did not keep up the configured Ip and went into DHCP mode... :-)
  • Zyxel_Melen
    Zyxel_Melen Posts: 226  Zyxel Employee
    Hi @zyxeluser100,

    You also can use ZON to find your device.
    Here is the download link.