3Com SuperStack - Answered Questions & Fixed Issues

sound like its fails the post.manual says should yellow if it fails, green if it passes. maybe hard reset unplug it from power wait a couple minutes plug back in.

Connect some text-based terminal emulator such as Hyperterm, telnet,VT100, etc to the serial port. Configure the emilator to19200 Baud 8 plus none. Switch the 4924 on and login using the user "recover" (without quotes) and password "recover" (also without quotes. The switch will go into recovery mode. It will display a count-down starting at 30 seconds. If you power thye switch off before the count is up, the default password for the main administration account "admin" will be cleared. After a few seconds, power the switch on and set a new admin password. After loigging in again, take the option "GettingStarted". Configure the ip settings (best to use a static address) and eventually you will get to the "Initialize" option. Enter yes, and after reboot it will be at factory except for its ip address.

1. Faulty power supply
2. Heat issue

See if there are any logs on the switch that you can check for errors. If you can't I suggest you call 3Com for troubleshooting.

Hi,

you can login though the console cable, switch back side conso;e port will be there, it will bw like RJ 45 port

Managed switches you can enter the default ip into a web browser, login and "manage" settings" this default IP will be vendor specific. Unmanaged you just plug in devices and that's about it. Managed switches you will pay a lot more for. Some lower end ones maybe several hundred dollars and up. If you are buying switches at Best Buy they are almost all unmanaged.

take it to the 4s garage, if you want to find out the problem by yourself,you first have some professional tool , there are some diagnostic that always can figure out the problem i can show you: www.xcardiag.com/

1. Using a Null-Modem Cable , hook up the Console port of the switch to an available COM port on a computer (cable must be able to provide serial port communication between 2 computers).
2. Set up a Hyperterminal session to that COM port (e.g.: com1), with the port settings at 9600/8/N/1/N (. When the screen comes up blank with a blinking cursor, hit [enter] once or twice to bring up a login prompt.
3. Alternative to 1 and 2 above, if there is a known assigned TCP/IP address for the switch, one can telnet to that address, hit [enter] once or twice to get the login prompt.
4. Default logins to try are admin/(no password) or security/security. One of those 2 should bring up the management menu.
5. To reset factory defaults, type SYSTEM[enter] then type INITIALIZE[enter]. This will reset everything that has been set up on the switch, with the exception of the TCP/IP address, if there is one. All other previous configurations will need to be re-entered.
6. You can type in username "3comcso" and password "RIP000". It will ask you to reinitialize the switch. This will reset all settings including passwords.

Connect the switch with a null-modem cable
In windows, hyperterminal , To enter into Password Recovery Mode:
login: recover
password: recover
Turn the power off (hard reset) within 30seconds
Re-enter the password twice.

There a great article at General Router Setup.
If you need more help post back!
Thumbs and testimonial are welcome!


There is a great article at Working with Windows Wireless Networks
If you need more help post back! Thumbs and testimonial are welcome!

I've got a Superstack II 3300 24port switch, all leds are on, and led 8 blinks.
I'll let you know if I find a solution.

Download free version of HyperTerminal for Vista : ftp://ftp.hilgraeve.com/htpe/htpe63.exe
Make a new connection :
connect using COM1 (depends of your configuration)
19 200 bits/sec
8 data bits
No parity
1 stop bit
No control of flux

And push enter twice to display a "Login:" prompt.
Connect using default user/passwords : http://support.3com.com/infodeli/tools/switches/ss3/management/ug/setup.htm#13131

Regards,

AstroMan

You forget the password for the "admin" user account and can no longer perform important management operations. Use the password recovery method outlined below to define a new password for the "admin" user account:

1. Access the Command Line Interface from the console port and enter the user name "recover" and password "recover" to place the Switch in password recovery mode. The Switch remains in password recovery mode for a maximum of 30 seconds, before it returns to the CLI login prompt.
   
   You must use the console port to recover the passsword. If you attempt the recovery method using the network, the password will be rejected.
   
   
2. Perform a hard reset on the Switch whilst it is in password recovery mode by switching it off, waiting a few seconds, and switching it on again.
   
   You cannot use a soft reset operation to reset the password of the "admin" user account. This will end the password recovery procedure and return you to the CLI login prompt.
   
   
3. When the Switch has rebooted following the hard reset enter a new password for the "admin" user account.
   

Well I think the port is bad, I had one that did something similar to your problem. I got on the 3Com website and submitted and RMA request and they upgraded my with the newest model. But if yours is still in stock they will replace with the same type. That is what I would do. Hope this helps ya.

I haven't worked with these switches but generally settings such as ip address and factory defaults can be set through the Console Interface (CLI). You will need a null-modem cable to access this and a terminal client (Windows Hyperterminal works).

Hope that helps

switch dont restart by themselves without command, first remove the switch from the network, disconnect from internet, make sure you hadn't fired anybody recently it sounds like a hack. reduce network traffic to local area only and priortise important internet traffic. now got back to the switch and troubleshoot make to check the reboot command on error or when error is found, if the problem stops when the switch is remove somebody is messing with the network.or the darn switch is faulty install a new one.

You Could check to see if it has a passowrd and username as 3com or user as username or password thats wat mine is and i forget my pass

VLAN configuration is able to do in the layer 2 swicth.

Hi,

This is the problem with power adopter. Please replace you adopter and let me know...

Rajeev

You might consider trying to upgrade the BIOS's on the affected switches

A blinking power LED means that the switch is either downloading software, or is initializing which also includes running the Power On Self Test. You may have firmware issues with the switch and/or the switch is stuck in initialization mode. You may have to contact 3com regarding a warranty issue. Hope this helps. Good luck.