Loss of wireless network access

[smlunatick]

I am at a loss on what to check now. I have several wireless routers
which I am trying use (one at a time.) Both USB wireless adapters
that I have (Trendnet and SMC) randomly loose my wireless network
completely (no wireless network listed) in Windows Zero
Configuration. I have looked for possible cause in my Windows XP Pro
and found nothing wrong. In May 2007, my hard drive crashed so I now
have a "fresh" install of XP since then and problem still occurs.
However, I still using the "wired" part of my routers until I can get
a reliable wireless network.

I have tried the following:

Routers: SMC SMCWBR14T, Trendnet TEW-432BRP & TEW-452BRP (died.)

Wireless Adapters: SMC SMCWUSBT-G, Trendnet TEW-444UB

Each with the latest available drivers (adapters) and firmware
(routers.)

What do I need to check next?

 

[BigJim]

how many people in the neighborhood are on the same channel

 

[Bill Sharpe]

I am at a loss on what to check now. I have several wireless routers
which I am trying use (one at a time.) Both USB wireless adapters
that I have (Trendnet and SMC) randomly loose my wireless network
completely (no wireless network listed) in Windows Zero
Configuration. I have looked for possible cause in my Windows XP Pro
and found nothing wrong. In May 2007, my hard drive crashed so I now
have a "fresh" install of XP since then and problem still occurs.
However, I still using the "wired" part of my routers until I can get
a reliable wireless network.

I have tried the following:

Routers: SMC SMCWBR14T, Trendnet TEW-432BRP & TEW-452BRP (died.)

Wireless Adapters: SMC SMCWUSBT-G, Trendnet TEW-444UB

Each with the latest available drivers (adapters) and firmware
(routers.)

What do I need to check next?

Try switching your router channels. There may be interference from
wireless phones or other sources.

Bill

 

[smlunatick]

Try switching your router channels. There may be interference from
wireless phones or other sources.

Bill- Hide quoted text -

- Show quoted text -

I've tried different channels but still not a stable wireless
network. It seems that my USB adapters just "loose" the complete
wireless network signals (not just mine but sometime every wireless
signal in my area.) I suspect the USB ports, either the power USB 2
hubs or the add-on USB 2 ports, are somehow resetting the adapters
since by disconnecting the USB adapters (Safely Remove Hardware
option) and reconnecting will reset the wireless signals.

Has anyone else experienced this?

 

[Thomas Wendell]

Have you disabled the "Allow computer to turn power off.." from the "USB
Root Hubs" properties
Start->Run devmgmt.msc

I've tried different channels but still not a stable wireless
network. It seems that my USB adapters just "loose" the complete
wireless network signals (not just mine but sometime every wireless
signal in my area.) I suspect the USB ports, either the power USB 2
hubs or the add-on USB 2 ports, are somehow resetting the adapters
since by disconnecting the USB adapters (Safely Remove Hardware
option) and reconnecting will reset the wireless signals.

Has anyone else experienced this?

--
Tumppi
=================================
A lot learned from these newsgroups
Helsinki, FINLAND
(translations from/to FI not always accurate
=================================

 

[smlunatick]

Have you disabled the "Allow computer to turn power off.." from the "USB
Root Hubs" properties
Start->Run devmgmt.msc








--
Tumppi
=================================
A lot learned from these newsgroups
Helsinki, FINLAND
(translations from/to FI not always accurate
=================================- Hide quoted text -

- Show quoted text -

That was the first thing I have checked. I will check again later
this evening.

 

[smlunatick]

That was the first thing I have checked. I will check again later
this evening.- Hide quoted text -

- Show quoted text -

Weel. I have checked all the USB root hubs and de-activate the USB
power option "Allow computer to turn power off.." for every one, even
the older USB 1.1 port that the adapters never use. It seems to make
to wireless connection reliabl but now an new problem. My adapters
(TEW-444UB and SMC SMCWUSBT-G) now appear to be stuck at 54.0Mbps
transmit power instead of their published 108Mbps rates. I have check
my SMC SMCWBR14T wireless speed settings and it is supposedto be @
180Mbps also.

What sould I check next?

 

[smlunatick]

Weel. I have checked all the USB root hubs and de-activate the USB
power option "Allow computer to turn power off.." for every one, even
the older USB 1.1 port that the adapters never use. It seems to make
to wireless connection reliabl but now an new problem. My adapters
(TEW-444UB and SMC SMCWUSBT-G) now appear to be stuck at 54.0Mbps
transmit power instead of their published 108Mbps rates. I have check
my SMC SMCWBR14T wireless speed settings and it is supposedto be @
180Mbps also.

What sould I check next?

Please make that "@ 208Mbps" instead of "180Mbps."

 

[smlunatick]

Please make that "@ 208Mbps" instead of "180Mbps."- Hide quoted text -

- Show quoted text -

Boy, I'm out of it! Make that "108Mbps", not "208Mbps" nor "180Mbps."



Also, now it has be 24 hours + and I now have 108Mbps speeds. What
could have cause my problem?

 

[smlunatick]

Boy, I'm out of it! Make that "108Mbps", not "208Mbps" nor "180Mbps."

Also, now it has be 24 hours + and I now have 108Mbps speeds. What
could have cause my problem?- Hide quoted text -

- Show quoted text -

Well, my problem is "back." I am now looking at my USB 2.0 ports to
be the problem. I found an updated XP drivers for them (ALi based)
and will try these out.

 

[smlunatick]

I am at a loss on what to check now. I have several wireless routers
which I am trying use (one at a time.) Both USB wireless adapters
that I have (Trendnet and SMC) randomly loose my wireless network
completely (no wireless network listed) in Windows Zero
Configuration. I have looked for possible cause in my Windows XP Pro
and found nothing wrong. In May 2007, my hard drive crashed so I now
have a "fresh" install of XP since then and problem still occurs.
However, I still using the "wired" part of my routers until I can get
a reliable wireless network.

I have tried the following:

Routers: SMC SMCWBR14T, Trendnet TEW-432BRP & TEW-452BRP (died.)

Wireless Adapters: SMC SMCWUSBT-G, Trendnet TEW-444UB

Each with the latest available drivers (adapters) and firmware
(routers.)

What do I need to check next?

I have completely done a "reset" of my USB ports ( with a batch file
to clear out USB setting and "devcon") and it now seems to be stable.

 

[smlunatick]

I have completely done a "reset" of my USB ports ( with a batch file
to clear out USB setting and "devcon") and it now seems to be stable.- Hide quoted text -

- Show quoted text -

Update to this thread, so as to help others!

Well, it does seem that the USB ports add-on PCI adapter may be the
entire source of my problem. It seem that the hardware was cause
various hardware issues (PC refusal to boot, BIOS reset and no "POST"
at start-up) Replaced it and alls well.

 

[smlunatick]

Well, my problem is "back." I am now looking at my USB 2.0 ports to
be the problem. I found an updated XP drivers for them (ALi based)
and will try these out.- Hide quoted text -

- Show quoted text -

My final update to this post! Turned out my previous USB 2.0 PCI add-
on ports were using an "uncompatible' ALi chipset (at least for my
PC.) Replaced them with NEC based USB 2.0 PIC adapter and all seems
to be ok!

 

[x0rsist]

My final update to this post! Turned out my previous USB 2.0 PCI add-
on ports were using an "uncompatible' ALi chipset (at least for my
PC.) Replaced them with NEC based USB 2.0 PIC adapter and all seems
to be ok!

Hey smlunatick i sent you an email but i dont know if you got it. I
have the exact same problem as you. Could you send me the file you
used to reset your ports. also could you explain what you mean but Pci
add on ports? Do i just use driver cleaner to clean the usb drivers
and install updated ones or something? thanks in advance. Trendnet
have been woeful in helping so far.

 

[smlunatick]

Hey smlunatick i sent you an email but i dont know if you got it. I
have the exact same problem as you. Could you send me the file you
used to reset your ports. also could you explain what you mean but Pci
add on ports? Do i just use driver cleaner to clean the usb drivers
and install updated ones or something? thanks in advance. Trendnet
have been woeful in helping so far.- Hide quoted text -

- Show quoted text -

PCI add-on ports == Separate PCI card which connects to a white PCI
motherboard connector to add additional USB 2.0 ports.

Check: http://www.uwe-sieber.de/usbtrouble_e.html

and the section on "USB drive not working stable" (look for
http://www.robvanderwoude.com/devcon.html)