Question about 3Com SuperStack 3 3300 TM Networking Switch

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3com 3300 TM - all Ethernet port not working, power led flashing

All Ethernet port isn't working, the power led keep flashing. All ethernet port is dead. thank's (sorry for my poor english)

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Re: 3com 3300 TM - all Ethernet port not working, power...

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.

Posted on Jun 21, 2007

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Firmware update for 3Com 2952

Don't let the switch name fool you, HP calls it the HP 1910.
HP 1910 48G Switch Fixed Port Web Managed Ethernet Switches HP JE009A ABA
Technical Notes:
"The HP 1910-48G Switch (JE009A) was formerly sold as the 3Com Baseline Plus 2952 (3CRBSG5293) and may ship with this product labeling.SFP ports and copper ports work simultaneously, independent of each other to give a total of 52 Gigabit-capable ports."

Firmware download from HP:
My Networking HP Official Site

Jan 14, 2013 | 3Com Baseline Plus 2952 52 Port Gigabit...

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Port LEDs keep flashing in sequence.

The ethernet switch maybe scanning the ports for connected computers.

Nov 05, 2012 | Linksys SD208 8-Port Ethernet Switch

1 Answer

My problem is i have all yellow ports flashing in 10 3com 3300 switches in the same time. please help me

  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.

Jul 15, 2011 | 3Com SuperStack 3 3300 XM 24-Port Ethernet...

1 Answer

3Com 4500 Gigabit ethernet switch hangs after 3 minutes. Has to be rebooted.

yes reboot and than it will run properly may be some load issue on your switch

Dec 14, 2010 | 3Com 4500G 24-Port Gigabit Ethernet Switch...

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My 3com 4200 28 ports is restarting by itself many

Base from the description of your problem its only showing that some of the port on of your Ethernet switch is already getting bad and this usually happen on switch like this and eventually all port will go bad and will lead to the replacement of the device. With this type of problem you can first try to adjust the speed of your network card to 10 half duplex and check if that will correct the connectivity problem and if it does its just a sign that sooner or later the device is already getting bad and since its only a switch there's no firmware that we can load to it or even a reset button to bring the device back to its default settings.

Jan 27, 2010 | 3Com 4200 24-Port Ethernet Switch

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3Com 3c17304 port 25 up not connecting

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.

Feb 25, 2009 | 3Com SuperStack 3 4228G 24-Port Ethernet...

1 Answer

Doesn't POST

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.

Dec 09, 2008 | 3Com SuperStack 3 3300 TM Networking...

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