No wireless signals any more

Discussion in 'Cisco/Linksys Wireless Routers' started by phoenixa, Aug 5, 2005.

  1. phoenixa

    phoenixa Network Guru Member

    I have been using a WRT54G for about two months now without any problem but since a couple of days I cannot connect via the wireless network adaptor. My wireless network adaptor detects the WRT54G (with difficulty and it detects it as a PC to PC wireless connection) but it says that the wireless network is weak (1Mbps) and does not connect. Nothing has changed with the configuration of the WRT54G. the configuration is as it was before. I’m also using the WAG54G. Even the WAG54G’s signals are not strong enough to connect. The PC’s that are connected by cable have no problem communicating with each other or connecting to the Internet. Just before encountering this problem I had installed the NetStumbler 0.4.0. I uninstalled it after having this problem and restored the computer to its state prior to the installation of NetStumbler 0.4.0 but the problem is not solved. The wireless network adaptor detects other wireless networks in the area faster than detecting my WRT54G which is only three meters a was from it. I did a reset of the WRT54G to the factory defaults without any result. I tried also to change the configuration and tried every possible configuration on the WRT54G but that also didn’t solve the problem. I think it's the Netstumbler that did something to the wireless network adaptor but what? I wouldn't know.

    Does any one have an idea?

    Thanks in advance.

  2. howardp6

    howardp6 Network Guru Member

    Normally, when Netstumbler is running the Windows Zero Configuration (WZC) service is disabled. The wireless NIC sends packets with no SSID's and waits for nearby wireless networks to respond (promisous mode). When netstumbler is closed the WCZ service restarts and the computer returns to normal operation. Assuming you are renning Windows XP I would check if WZC service is running. Check the setting for your wireless NIC especially the advanced setting. Which wireless NIC do you have? Have you done and updates to the operating system? If you are running Windows XP, do you have the install of updates set automatically set to be performed without you having to okay it? What service pack are you on? What version of the driver are you using for the wireless NIC?
  3. phoenixa

    phoenixa Network Guru Member

    Hi. Thanks for your reply. I’m using Windows XP SP2. the wireless NIC is an Acer with the latest drivers installed. All the patches and updates are installed. The Wireless Zero Configuration service is running. I uninstalled the Netstumbler and restored Windows to its state before the installation of Netstumbler via System Restore so normally there should be no trace left under Windows or in the registry. I checked the settings in the Advanced part of my wireless NIC and they all match the settings of my WRT54G. The SSID, Transfer rate, AP mode, channel number etc. do you have any idea?
  4. howardp6

    howardp6 Network Guru Member

    Are you running any form of encryption? If you are using WPA-PSK, and on on the firmware version that supports WPA-2 install the hot-fix for WPA-2 on the Microsoft website. Otherwise, if you installed the hotfix and are using WEP de-install the hot-fix if you installed it previous. The hot fix is at

    The system restore should have backed out any changes.

    If you are using WPA I would enable SSID broadcast. The detection of the PC to PC connect is an indication of Ad Hoc mode and not infrastructure mode.
  5. phoenixa

    phoenixa Network Guru Member

    I'm using WEP as encryption. I don't remember whether I installed that update or not but it's possible that I installed it. I'll check it and let you know. I checked the wireless NIC configuration and on the Advanced tab I have selected Infrastructure as type of network and Wireless Station as Device Type for the wireless NIC. Since the last post, I uninstalled the wireless NIC and reinstalled it but it did not solve my problem. Thanks for your help. This problem is getting on my nerves every day more than the day before :(
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