Firmware update for 3Com 2952 - 3Com Baseline Plus 2952 52 Port Gigabit Switch (3CRBSG5293UK)

The keyword to look for is "HP 1910-48G Switch"
2952 SFP 3CRBSG5293 Firmware

Hi, I think you may have to buy a new unit.It is essential that a firmware update completes uninterrupted as it is modifying the unit's operating system. This applies to anything, not just routers. If the update does not compelete then the operating system is not complete and the unit will not work any more.

The downloaded file is "corrupt", and thus it fails the "verification" process.

Download the firmware again, and compare the two files.

Or, use a different computer to download the firmware, and to do the firmware-update.

The 1.3 update is listed on this 3Com link:

http://www.3com.com/products/en_US/result.jsp?selected=all&sku=3C13700&sort=effdt&order=desc

Click on this link or copy and paste the complete link into your browser.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it and give a testimonial for my response

Thanks, Joe

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

Check and see with there is a firmware update for the router and follow the instructions EXACTLY when doing a firmware upgrade.
http://h17007.www1.hp.com/us/en/products/wireless/index.aspx

The default IP address of the device, depends on the status of the network where the device resides, but if the device is not connected to the network, or no DHCP server exists in the subnet where the device resides, you can get the default IP address of the device on the label on the right of the device rear panel.

If you also have a standard copper cable (or a second fibre cable) connecting the two switches (for resilience perhaps?), this issue is probably being caused by something called Spanning Tree. This is implemented on switches as a 'loop avoidance' system, and can look like you have described with one end 'ip' and the other end no lights.

On the Cisco switch, get to a telnet/ssh/console session, log in and enter show spanning-tree and press enter.

have a look to see if the fibre interface has a status (sts column) of BLK. If it has, then this is called 'blocking' and will remain like that until you remove the second link to the other switch.

Hope that this has helped!

3com used to be good things back in the old days. But this hardware is probably self destructing in some way (the problem is widespread, the manufacturer claims it is an old product and gives no solution). Do NOT buy network products from 3com (HP today). Correct me if I am wrong..

try the manufaturer website first, but if it is Senau ECB -xxxx models, tough luck, they write the worst firmware, lots of it has java errors and is unusable.

Are you able to login to the router? If you can reset the router to factory defaults..If you can't login to the router...Is there an external reset button on the router you could try to reset. with a paperclip? Otherwise, I had this happen on a linksys router/switch. New router time. You should just return it where you purchased the product. There was already something seemingly going wrong if it was rebooting. 3 weeks? just return it. don't even mention the firmware update. Here is the site info for 3com: http://knowledgebase.3com.com/ OfficeConnect - Firmware upgrade fails with incorrect user interface image Problem: Incorrect user interface image Problem: Firmware upgrade fails Problem: Error when upgrading firmware Problem: Incorrect firmware Problem: Wrong firmware Fact: Firmware Fact: Download Fact: Update Fact: Upgrade Cause: The downloaded .exe has not been extracted Fix: The downloaded .exe needs to be extracted by double clicking on it. When performing the firmware update use the extracted files that were obtained from the "exe" file. e.g You will obtain a "bin" or "dlf" type of file which is the firmware required for your upgrade. Let me know what happens. Good Luck, Tim