TRENDnet ADSL Fast Ethernet/USB Combination Modem Router TDM-C400 (Blue)

by TRENDnet

Product Details

• Product Dimensions: 4.8 x 6.7 x 1.4 inches ; 9 ounces
• Shipping Weight: 2.4 pounds
• Shipping: Currently, item can be shipped only within the U.S.
• ASIN: B000T4H58C
• Item model number: TDM-C400
• Average Customer Review: 3.4 out of 5 stars  See all reviews (14 customer reviews)
• Amazon Best Sellers Rank: #54,619 in Electronics (See Top 100 in Electronics)
• Date first available at Amazon.com: July 4, 2007

Product Description

The TDM-C400 is ADSL/ADSL2+ customer premise equipment that provides high-speed asymmetrical data transmission on a single twisted copper pair. The DSL line interface supports various ADSL standards, up to ADSL2+. At the DTE side these CPEs provide, dual interfaces, a 10/100 Ethernet interface and one USB port for easy connection to users PC or LAN environment. TDM-C400 delivers broadband access for enterprises, telecommuters, home, and remote office workers with high-speed data transfer requirements.

Customer Reviews

Most Helpful Customer Reviews

9 of 9 people found the following review helpful:

4.0 out of 5 stars works on vista, January 13, 2010

By 

NorCal (San Francisco, CA) - See all my reviews

This review is from: TRENDnet ADSL Fast Ethernet/USB Combination Modem Router TDM-C400 (Blue) (Personal Computers)

good inexpensive option if you need a replacement dsl modem. as best I could tell, the cd rom was useless in terms of installing any drivers for Vista/Vista64. ditto for the driver zip file on the trendnet website.

thankfully, the trendnet website's OS compatibility key suggested that this unit was compatible with Vista without any driver installation. you just need to skip ahead in the instructions to the point where you enter the ISP for the modem/router in your web browser. once you do the quick configuration (entering the username/password you registered with your DSL provider) the PPP green light should come on and you're ready to go. hope this helps frustrated users who think they need to install a driver before using it!

6 of 6 people found the following review helpful:

3.0 out of 5 stars Product End of Life, Easy installation, advanced setup very difficult, April 29, 2010

By 

L. Yang "Dragon" (CA, USA) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: TRENDnet ADSL Fast Ethernet/USB Combination Modem Router TDM-C400 (Blue) (Personal Computers)

This modem/router can do a lot than most of people even thought of. But, unless you are very technical, you should limit yourself to the quick configuration level. Anything else is too complicated to set up. I had interacted with 4 tech supports. They don't let you wait and they are polite but they can not help you on advanced settings and they claim the product is End of Life. What you get is what will be like. So, I had to figure out most advance settings by myself.

MAKE SURE you don't use USB interface as the quick start guide tells you. It is not necessary and most likely the usb software CD won't install any way.

You just connect C-400 to your computer directly with Ethernet cable. After manually setting the IP address to 192.168.0.11, you can begin the setup. For simple user, the initial installation should only take 5 minutes.

But, if you want to do more, it is an entirely different story.

Important setting options:

(1) Set it as a DSL modem only: Tech support did not know how. I found a review on [...].

Under quick configuration:

Encapsulation: 1483 Bridged IP LLC
Bridge: Enabled
IGMP: Enabled
Use DHCP: Disabled
Default Route: Disabled

(2) Use it as a router but want to set parental control:

You need to enable bridge filter under service. (3 tech supports don't know this). You only can set it when the PC to be control in on line because you need to use Mac to block the internet access. C-400 allows you to set as many rules as possible while other routers mostly let you set only one.

(3) Use it as a router but want to set SNTP to get the time from internet:

Under Service, click SNTP and enter the domain name: [...]. You need to enable it (which the tech support did not instruct me so). After this, under Home, with modify: you need to select time zone (which Tech support said no).

Without STNP, every time the modem loses power, the time will not be accurate.

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I teamed up C-400 with a gigabit switch and a gigabit Ethernet wireless-n AP. The combined 3-piece solution outperformed Netgear DGND 3300 (3-in-1 solution). This issue of Netgear DGND3300 is that, although wireless-n connection claims 270mbps, the transfer between LAN and WAN is limited to 16 mbps. If you have a networked hard drive, it is better not to use this integrated solution because one bottleneck will defeat the purpose of having wireless-n. Initially, I would team up C-400 (as a dsl modem) with Neargear WNDR3700 (a 2-iece solution). But, the tech supports did not know how to set it up as a passthru modem. So, I purchased gigabit switch instead.

I upgraded my ATT DSL to 6 mbps and C-400 operates at full link speed. Now, I can stream HD movie from netflix with excellent video quality.

I recommend this product only if you just want a simple DSL modem router with no advance settings.

4 of 4 people found the following review helpful:

4.0 out of 5 stars 1/2 hour from opening the box to bridging to my router, October 10, 2009

By 

B. Ko "SirStray" (Pennsylvania, USA) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: TRENDnet ADSL Fast Ethernet/USB Combination Modem Router TDM-C400 (Blue) (Personal Computers)

The Trendnet TDM-C400 is unique in that setup can be anywhere from totally automatic to completely manual - A joy to use for noobs and geeks alike.

All I did was use the quick config to set up the bridging to my router (setting it up as a passthrough) and then set up my router to do the DSL login, disable the modem's DHCP server and that was that. The reason I bridged the modem to my router is because my network was already set up and I didn't want to have to set it up all over again, or I would've just used the DHCP server part of it, too.

The only thing keeping this product from receiving five stars from me is the interface can be confusing because of the myriad choices you can make. My advice is the same as what the manual recommends: use automatic settings where possible. It shouldn't defeat the determined noob, and it should cause waves of pleasure to wash over the experienced uber-geek.

Overall, it is a solid choice for a complete DSL/Network solution!