We've got a client with LAN using a NETGEAR WG614v7 router via VIRGIN internet. When I called to repair a PC I noticed a new HP VISTA laptop lying with a NETGEAR w/l adaptor plugged in so was intrigued as to why it was in use when the laptop has an active WLAN card installed?
I found that the adaptor/conn. was secured with WEP encryption on the VISTA laptop so suggested upgrading it to WPA for security reasons. I set about this and it turned out that I knocked the LAN off & cannot got it back on working properly?
I reset the router & used WPA (TKIP) to secure it & set the latop up to use it. I then set the w/l 360 up which was fine but the laptop then lost conn? since then nothing will work & I've just heard tonight that even though I set the 360 up on WPA it's been dropping it's connection so the client reverted to a cable.
The client maintains that the WEP LAN worked fine via the NETGEAR WG111v2 adaptor but anyone with any knowledge of VISTA will tell you that VISTA doesn't accept WEP as it's unsecure where as VISTA is very secure & demands the same.
I think the client has either been accessing the net via a misconfiguration of ICS or a neighbours LAN via VISTA's option to use another LAN if the preferred LAN is unavailable but I could be wrong. We've tried to set the laptop up on our own LAN via WEP as well as other VISTA laptops without success all day.
My CCNA certified associate & I have put all we know into this today & so far have come up with the fact that the 360's are using w/l controllers which use frequency 2.4 that has been proven to interfere with LAN's using 802.11b &g suggestions seems to point to using w/ band A but the router only supports B & G so that option is a no goer. I also use the same router & tried mine but still nothing so their router is fine.
I just CANNOT fathom as to how they've got away with 128mb WEP on a VISTA laptop using an adaptor, LOL I also wish I'd not been so helpful & left it alone :/
We're going to the premises tomorrow to try & sort it out once & for all so any ideas are welcome. I'm going to suggest moving the modem & router closer to the computers (all in one room) then try cabling the two 360's & DT PC to the router then giving the laptop access via WPA-PSK AES. This to me would be the best solution but if I can set it up quickly without doing this I'd love an answer?
I'm looking for a very experienced 360 user or network expert here, we're both MCP trained and do realise it's an issue with the 360's constant output signal of 2.4khz input to switch it on & we think this is interferring with the w/l signal to the laptop.