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Ez-B V4 Wifi Question

I can see the EZ-B v4 but no connections : below report from Windows I have Win 7 64.

List of visible networks: 2 item(s) total, 2 item(s) displayed BSS Type PHY Security Signal(RSSI) Compatible SSID

Infra g No 99 Yes EZ-B v4 2F11 List of preferred networks: 2 item(s) Profile: EZ-B v4 2F11 SSID: EZ-B v4 2F11 SSID length: 12 Connection mode: Infra Security: No Set by group policy: No Connect even if network is not broadcasting: No Connectable: No Reason: 0x00028001 Profile: DO_122455 SSID: DO_122455 SSID length: 9 Connection mode: Infra Security: Yes Set by group policy: No Connect even if network is not broadcasting: No Connectable: No Reason: 0x00028002 Information for Connection ID 2 Connection started at: 2015-01-02 14:51:37-362 Auto Configuration ID: 2 Profile: EZ-B v4 2F11 SSID: EZ-B v4 2F11 SSID length: 12 Connection mode: Infra Security: No Pre-Association and Association Connectivity settings provided by hardware manufacturer (IHV): No Security settings provided by hardware manufacturer (IHV): No Profile matches network requirements: Success Pre-association status: Success Association status: Fail 0x00038002 Association reason code: 0x00000001

Regards Antoni


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Sony Vaio (big Quad processor and small) and HP as well as Nexus 7

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with Intel(R) Centrino(R) Advanced-N 6200 AGN - wifi network adaptor

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All works, but there is warning: If you have many wireless gadgets : cordless phone, Wifi modem, 3 laptops, 2 cells connected to your modem and 2 tablets connected as well, wifi printer, video streaming and the EZ-B v4 in the middle, it will not work.


Antek12, I see from the email you sent me, you are running Avast anti-virus. There is a known issue with Avast that is included in the tutorial I linked.


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I have over 30 devices connected to my network now. I also have cordless phones, RF devices throughout the house, bluetooth devices throughout the house, speakers everywhere... basically a higher than average level of electromagnetic radiation and the network has a lot of traffic 24/7.

I have no issues connecting EZ-Bs to the network.



Do you have access to the router that handles your network? If possible assign your EZB to it's own static IP number in the router. If this router cant assign static IP's you may need a newer router. Please read this thread for more info: How I resloved my Connection issues

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Its sorted. For programing I use my other laptop, For play I use Nexus 7 and for connection from outside I use m server (with windows home server 2012). It may look complicated but it works.

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Correction my server is with Windows Home Server 2011 Vail ( I am planning to replace it with Windows Server 2012 R2 Essentials)


Even with setting static IP's (actually, I think made worse) there is a problem with the EZ-B in client mode. It is not disabling (or fully disabling) the DHCP Server when switching from AP to Client mode, so if you have more than one EZ-B, or if you have other 2.4ghz WiFi devices (802.11n or 802.11g) when they request an IP address from the network, all currently running EZ-B's will send a DHCP offer, along with your router.

This can absolutely cause an issue. Other devices may not gain internet access and the EZ-B's that start after the first one may not get the IP address you are expecting.

(I have confirmed this with Wireshark captures. Whenever a device on the 802.11n network requests an IP address, all of the EZ-B's respond with offers. This is very bad for a network, and could explain all the strange symptoms people have reported with network problems, particularly when there are multiple EZ-B's except for the known HP/Compaq issue in AP mode, and the Avast issue in all modes).