Question about 3Com OfficeConnect Wireless Router

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3com 3crwdr200a reboots every 30 minutes

Upgraded to official firmware v3.0.1. It reboots every 30 minutes when connected to internet. please help. any advise other than using un-official firmware?

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  • dunded May 05, 2008

    HAAi,

    1) not reboot literally. the best word to describe it is freezes/hangs. i retest it again and the same happen even when it's not connected to internet.
    2) my friend has a 3crwdr101a(earlier model, 54mbps) and it works fine
    3) don't think it's my isp.
    4) i don't have modem. this is an adsl router

    i'm thinking it's the faulty router. should i send it for RMA(repair)?

  • iori172 Sep 11, 2008

    i have the same problem whith same router; my router freez many times per day when i'm connected to internet, and i don't know what to do,please help me :(

  • Anonymous Mar 11, 2009

    Same issue here. Router hangs/stops at random. Longest it's been up is two hours. I think it's overheating. I don't know all I can tell is that after a hang it's hard to hold on to for more than a few seconds. Too hot!

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The 3com website is remarkably shoddy on this issue, and doesn't have the newest required updates. Even the KB on their site is thin on solutions.

You really need firmware 3.6.4, yet 3.0.1 is the latest on the official website. Try this page:
http://3crwdr.googlepages.com/

for the very latest firmwares, and note that it's best to clear out the router memory completely before adding the new firmware to it. This is because it sometimes doesn't like the new image files otherwise. The way I suggest:
1. Note all of your settings manually (don't save a config file, it may not read back in).
2. Hard reset and clear the memory, by holding down the reset button and powering on.
3. Connect to 192.168.1.1 with your browser - you may need to mess with the network settings on your PC to get it to connect. You will see a very bland screen, asking you for a firmware file, rather than the traditional login screen.
4. Upload the latest firmware, downloaded from the site above.
5. Allow the router to do it's business and restart.
6. Connect back to 192.168.1.1, and you will once again see the correct router software, with a new install wizard.
7. Re-enter all your settings, as noted above.

Posted on Mar 11, 2009

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Hi there!

If I were you, DO NOT use a firmware that you didn't download at 3com's site since it will void the warranty (based on experience with other manufacturer).

You're using the lates firmware of 3.0.1 (I checked it at their website).

I have some questions for you:

1. Does it reboot literally? I mean, the router turns off then on after 30 minutes?
3. Who's your internet provider?
4. DO you have a modem? If Yes, what's the brand and model?
2. Have you tried isolating the problem by trying a different router?

Posted on May 04, 2008

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Posted on Jan 02, 2017

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Configuring a 3COM 3CRWDR200A-75 router as a repeater


SETTING A ROUTER AS A REPEATER 1. Connect your computer to the repeater router's RJ45 port with a LAN cable. 2. Open a browser, then enter the router's URL configuration's IP address, This is usually something similar to 192.168.0.1 3. Enter the configuration user name and password. The router will display the various router settings. 4. Go to the page that changes the IP address of the router. Changed the IP address so that it is not the same as the main router on the network, or any other network devices. If the main router on the network is set to 192.168.1.1 then the repeater router should use a higher number (ie. 10), such as 192.168.1.10 or higher, depending on how many devices are on your network. 5. Disable the repeater router's DHCP server. This setting should be on the same page as the IP address, (this may be different depending on the make of the router). When the main router is operating normally, this server assigns an IP address to every device that is connected to your network. Because this router is used as a repeater, the main router on your network will still issue the IP addresses. 6. Also turn off the DNS server, if it is activated. This function will be taken over by the main router. 7. Disable any firewall settings on the repeater router. This is usually in the "Security" section, depending on the make and model of your router. 8. Remove all in the "Port Forwarding" section. Some routers may refer to this as "Applications and Gaming," and it allows less-restricted access to the internet. 9. Set the operating mode switch to "Gateway" or "Switch" if applicable. Also, if the repeater router is a wireless router then disable the wireless access or set it to access point only. 10. Save the settings for each page, and reboot the router. When the router boots up, the changes will allow it to act as a simple repeater. 11. Now, place the repeater router in a new location and connect both routers with a Ethernet cable in each of the router's RJ45 LAN ports, and power it up both routers.

Nov 17, 2012 | 3Com OfficeConnect® (3CRWDR200A-75) Router...

Tip

3COM 3CRWDR200A-75 Firmware Download - All Versions


Hello

If you want earlier firmware versions of 3Com 3CRWDR200A-75 then check this website:-

http://3crwdr.googlepages.com/

da4eeaf.jpg Firmware Router 3Com 3CRWDR200A-75 V.3.0.1
Firmware Router 3Com 3CRWDR200A-75 V.3.0
Firmware Router 3Com 3CRWDR200A-75 V.3.1 Beta
Firmware Router 3Com 3CRWDR200A-75 V.2.9b Beta
Firmware Router 3Com 3CRWDR200A-75 V.2.9 Beta
Firmware Router 3Com 3CRWDR200A-75 V.2.8b7 Beta
Firmware Router 3Com 3CRWDR200A-75 V.2.8b6 Beta
Firmware Router 3Com 3CRWDR200A-75 V.2.8b4 Beta
Firmware Router 3Com 3CRWDR200A-75 V.2.8b Beta
_____
Regards

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Every time my laptop powers down and reboots i connot connect to the internet unless i power cycle both router and modem? any idea ?


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Download the latest firmware of the router. Go to the manufacturer's web site and download the firmware of the router.
Open the set up page of the router and upgrade the firmware of the router. Once you upgrade the firmware of the router, reset the router.
On the router you will find a small reset button, hold it down for 30 seconds. release it. wait for 1 minute. Now unplug the power to the router and plug it back in.
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The first thing I would check would be in the configuration (point your web browser to 192.168.1.1 when you have a wired connection) panel, under:
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If the 'Wireless mode' is set to 'SuperG', this may be your problem. The SuperG setting will only work with SuperG enabled wireless adapters. First change this setting to 'Mixed 11b/11g'; if it still doesn't work switch down to '11g' then to '11b'.

Do all your wireless testing with a laptop or PC as close to the router as possible - same room at the very least.

If all other settings are correct (double check them), this is the only thing I can think of that can instantly make a difference.

If you feel the firmware may be faiilty, note that although 3.0.1 is the 'newest' on the 3com website, even in their own knowledge base they refer to newer versions. These newer versions are available at:
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You could try using one of these (at your own risk), if you feel it is the firmware itself that is causing the fault.

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