SOURCE: How do i Reset or break in to get reset my
The resetting of the password requires the installation of a console cable to the console port.
Be sure the terminal emulator program is set to VT-100 management
using compatible, 38400 baud rate, no parity, 8 data bits and Console
connection one stop bit.
Use the included cable, or be sure that the pin-out complies with a standard null-modem cable
Once the cable is connected, reboot the switch. Type a Ctrl/C until
you enter the failsafe mode. This will be denoted with the prompt:
“CFE>”
At the prompt execute the following commands:
CFE> passwrd
CFE> reset -sysreset
At this point the password has been reset.
SOURCE: 3Com Baseline Switch 2024 - Switch - 24 ports
Is it hsappening with all the 24 ports or with some ports ?
Might be an indiacation towards the duplex mismatch.
are you getting CRC errors on the interfaces ?
SOURCE: i forgot my admin password
If it's the Power Plus (3C16475BS) model, there should be a reset button inside a small hole on the back. "10 - Recovery Button" Inserting a paperclip or similar to reset. If it's not the Power Plus model and is in fact (3C16475A), this is an unmanaged switch, with no administrative capabilities. You don't need a password.
http://www.3com.com/products/en_US/detail.jsp?tab=features&pathtype=purchase&sku=3C16475BS
SOURCE: Hub power down
Not the type of "switch" where the contacts can burn away. More likely the internal power supply board has been "blown", but result the same...... new switch.
SOURCE: I would like to find
3Com is owned by HP now.Here is the manualhttp://bizsupport2.austin.hp.com/bc/docs/support/SupportManual/c02581570/c02581570.pdf
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