Trendnet TEW-423PI

defexer · 09-26-2008, 03:34 PM

Hello!
Today i buy the card and i put that to motherboard,so i installed drivers and now that show something.

And i trying open program,and that shows this error.

I have Windows Xp.
Card name: Trendnet Tew-423PI

There is no wireless card :( .
My english not so good.

Somebody help please!

TechDan615 · 09-27-2008, 08:24 AM

I would suggest reinstalling the software for this adapter as well as the drivers for the adapter itself. Using the disc that came with the adapter, after uninstalling the TrendNet utility, reinstall the program from the disk. After doing this, if still not resolved you'll want to reinstall the network drivers. In order to do so, you can right click the wireless adapter under the device manager, and click uninstall. Then restart the computer, allow the computer to detect the new hardware. With the disc in the drive, run the hardware setup wizard to fix the problem. If that still doesnt work, let me know. Sorry if you cant understand all of what I said, if you need better translation, just ask.

defexer · 09-28-2008, 02:04 AM

I did that what you posted and now Card work.
Thank You Dude!

csd · 09-18-2009, 01:50 PM

Hi all,

Here my story:
I bought 30 TEW-423pi adapters and I tested 3 out of the bundle.
I performed the test using both Windows Zero config (test 1) and the TrendNet client version 1.20.121.50 (test 2) with the same driver version 5.1102.1120.2007.
I used 2 different desktops with a TEW-423pi adapter: Asus P5B-VM and Compaq EVO D510
I used 2 laptops sitting on the same table next to the desktops mentioned above.
The table is at 25 feet from the access point (Cisco LAP-1142) within a open space room (no obstacles), so I am not even close of the 150 feet of the 802.11g standard.
I used Pilot with AirPcap from CACE tech to measure the signal strength as well as the utility build in the access point Cisco LAP-1142 managed by a Cisco WLC 4402 (both giving approximately the same measure +/- 5dbm).
The results:
TEW-423pi (no matter which desktop/adapter I used): between -64 to -74 dbm in avg. @ 802.11g
HP NX7400 (Intel wireless 3945ABG): between -47 to -53 dbm in avg. @ 802.11g
Toshiba Tecra A9 (Intel wireless 4965AGN): between -45 to -51 dbm in avg. @ 802.11g
The Noise is between -79 to -87 dbm

I have done the same test at the same location with the same Compaq EVO D510 BUT I replaced the TEW-423pi by a TL-WN851N from TP-LINK. I have got:
RSSI (min/max/avg): -44/-41/-42
SNR (min/max/avg): 34/53/49
Which is the normal values that we should expect at this range.

I ask TRENDNET to arrange a refund with my vendor? Since I bougth 30 TEW-423pi cards based on the assumption that the should perform within the 802.11 specification. No answer… of course.

Conclusion:
1) Most Access Point algorithms will drop (and sometime quarantine like Cisco) wireless clients that are under -70 dBm for a long period of time. Simply because such client is slowing down every wireless clients associated to the same AP. Yep! You now understand why you are losing connectivity after some minutes.
2) TEW-423pi are not able to respect the 802.11g standard range, actually they are not even close with a range of 25 feet!
3) TRENDNET knows that and they are still selling this product!
4) Do not make business with TrendNet.

09-26-2008, 03:34 PM	#1 (permalink)
defexer Registered User Join Date: Sep 2008 Posts: 2 OS: Windows xp	Trendnet TEW-423PI Hello! Today i buy the card and i put that to motherboard,so i installed drivers and now that show something. And i trying open program,and that shows this error. I have Windows Xp. Card name: Trendnet Tew-423PI There is no wireless card :( . My english not so good. Somebody help please!

09-27-2008, 08:24 AM	#2 (permalink)
TechDan615 Registered User Join Date: Sep 2008 Location: Baltimore MD Posts: 57 OS: Windows XP - SP2	Re: Trendnet TEW-423PI I would suggest reinstalling the software for this adapter as well as the drivers for the adapter itself. Using the disc that came with the adapter, after uninstalling the TrendNet utility, reinstall the program from the disk. After doing this, if still not resolved you'll want to reinstall the network drivers. In order to do so, you can right click the wireless adapter under the device manager, and click uninstall. Then restart the computer, allow the computer to detect the new hardware. With the disc in the drive, run the hardware setup wizard to fix the problem. If that still doesnt work, let me know. Sorry if you cant understand all of what I said, if you need better translation, just ask. __________________ Dan H., CCNP Comcast Cable Comm. IP Support MD/DE/VA

09-28-2008, 02:04 AM	#3 (permalink)
defexer Registered User Join Date: Sep 2008 Posts: 2 OS: Windows xp	Re: Trendnet TEW-423PI I did that what you posted and now Card work. Thank You Dude!

09-18-2009, 01:50 PM	#4 (permalink)
csd Registered User Join Date: Sep 2009 Posts: 4 OS: xp	Re: Trendnet TEW-423PI Hi all, Here my story: I bought 30 TEW-423pi adapters and I tested 3 out of the bundle. I performed the test using both Windows Zero config (test 1) and the TrendNet client version 1.20.121.50 (test 2) with the same driver version 5.1102.1120.2007. I used 2 different desktops with a TEW-423pi adapter: Asus P5B-VM and Compaq EVO D510 I used 2 laptops sitting on the same table next to the desktops mentioned above. The table is at 25 feet from the access point (Cisco LAP-1142) within a open space room (no obstacles), so I am not even close of the 150 feet of the 802.11g standard. I used Pilot with AirPcap from CACE tech to measure the signal strength as well as the utility build in the access point Cisco LAP-1142 managed by a Cisco WLC 4402 (both giving approximately the same measure +/- 5dbm). The results: TEW-423pi (no matter which desktop/adapter I used): between -64 to -74 dbm in avg. @ 802.11g HP NX7400 (Intel wireless 3945ABG): between -47 to -53 dbm in avg. @ 802.11g Toshiba Tecra A9 (Intel wireless 4965AGN): between -45 to -51 dbm in avg. @ 802.11g The Noise is between -79 to -87 dbm I have done the same test at the same location with the same Compaq EVO D510 BUT I replaced the TEW-423pi by a TL-WN851N from TP-LINK. I have got: RSSI (min/max/avg): -44/-41/-42 SNR (min/max/avg): 34/53/49 Which is the normal values that we should expect at this range. I ask TRENDNET to arrange a refund with my vendor? Since I bougth 30 TEW-423pi cards based on the assumption that the should perform within the 802.11 specification. No answer… of course. Conclusion: 1) Most Access Point algorithms will drop (and sometime quarantine like Cisco) wireless clients that are under -70 dBm for a long period of time. Simply because such client is slowing down every wireless clients associated to the same AP. Yep! You now understand why you are losing connectivity after some minutes. 2) TEW-423pi are not able to respect the 802.11g standard range, actually they are not even close with a range of 25 feet! 3) TRENDNET knows that and they are still selling this product! 4) Do not make business with TrendNet.