My 3COM router doesn't support DDNS. Can I upgrade the firmware?

Usually the upgrade routine is in the router program. Log into the router and find the option to upgrade to latest 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.

Wrong firmware. Never upgrade firmware unless recomended by the mfgr or the unit itself can upgrade automatically like most newer Netgear models.

Buy a new router, they are very inexpensive.

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

I had the same problem with the Ipod of my son.
To solve the problem, just upgrade your Firmware to the latest version. This will allow u to define the new MAC address. But the problem is that this firmware version doesn't work well, reseting the router every couple of hours. So to solve this problem, after you upgraded the FW and defined the MAC address, downgrade the firmware to you previous version, the new mac address will still there.
This workaround you need to do every time that you want to define any new MAC address

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I had the same problem since a bought it last week and I was going crazy. Install this firmware and everything will work fine:
http://booobi.googlepages.com/uperJerry_V2.8b4_Worldwide_A.rar

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