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2 "g" adapters on desktop, one sees SSID broadcast, other does not

 
 
Marc
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      10-15-2008, 12:54 AM
I have two g adapters on the same desktop running WinXP SP3, I enable #1,
with #2 disabled, and number 1 "sees"/connects to network: SSID1. I disable
#1, enable #2: #2 does not even see SSID1 (i.e., Windows does not even show
an "SSID1" on the Windows configuration, "View Wireless Networks". It does
see many other networks all over my neighborhood). I now switch routers:
turn-off router A and bring-up router B - both broadcast SSID1, same security
settings, same location, etc. Now if I repeat the same process as above,
enabling one adapter and disabling the other in turn, BOTH see SSID1 and can
connect to it (ie, can connect to router B). I have not needed to change any
configurations (except enable one adapter/disable the other) on the desktop,
either adapter will connect... A router range problem with A? I bring
router A within 5 feet of adapters; again repeating the enabling/disabling
above. Same result: adapter #1 sees it -- with adapter #2, Windows does not
even register an SSID1 on the Windows configuration, "View Wireless
Networks". I have other wireless clients (e.g., iPhone, another laptop,
etc.) that can "see" both routers A or B and can connect to either
interchangeably at same range.

Any thoughts, I am stumped. I could understand a conflict on the desktop
with two adapters, but can't understand why router B works for both adapters
on that desktop (both see SSID1 and can connect) and why router A's SSID1
broadcast is "invisible" to adapter #2 and Windows?

Thanks in advance,
 
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Marc
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      10-15-2008, 02:49 PM
Thanks much for your suggestion. ...but no luck. I turned off ZoneAlarm
firewalls from ZA console, then also tried shutting ZA off completely...
Windows reports no firewall at all on the desktop. Same results. It seems
it has to be something along the lines of what you experienced...

"smlunatick" wrote:

> On Oct 15, 1:54 am, Marc <M...@discussions.microsoft.com> wrote:
> > I have two g adapters on the same desktop running WinXP SP3, I enable #1,
> > with #2 disabled, and number 1 "sees"/connects to network: SSID1. I disable
> > #1, enable #2: #2 does not even see SSID1 (i.e., Windows does not even show
> > an "SSID1" on the Windows configuration, "View Wireless Networks". It does
> > see many other networks all over my neighborhood). I now switch routers:
> > turn-off router A and bring-up router B - both broadcast SSID1, same security
> > settings, same location, etc. Now if I repeat the same process as above,
> > enabling one adapter and disabling the other in turn, BOTH see SSID1 and can
> > connect to it (ie, can connect to router B). I have not needed to change any
> > configurations (except enable one adapter/disable the other) on the desktop,
> > either adapter will connect... A router range problem with A? I bring
> > router A within 5 feet of adapters; again repeating the enabling/disabling
> > above. Same result: adapter #1 sees it -- with adapter #2, Windows does not
> > even register an SSID1 on the Windows configuration, "View Wireless
> > Networks". I have other wireless clients (e.g., iPhone, another laptop,
> > etc.) that can "see" both routers A or B and can connect to either
> > interchangeably at same range.
> >
> > Any thoughts, I am stumped. I could understand a conflict on the desktop
> > with two adapters, but can't understand why router B works for both adapters
> > on that desktop (both see SSID1 and can connect) and why router A's SSID1
> > broadcast is "invisible" to adapter #2 and Windows?
> >
> > Thanks in advance,

>
> I had this before. Check all / any software firewall setting. On my
> PC, my Norton 360 was not trusting my SSID on my wireless adapter.
>

 
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Jack \(MVP-Networking\).
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      10-15-2008, 03:32 PM
Hi
Make sure that the Wireless Router that does not show up on one adapter has
the latest firmware and Hard reset it (aft6er hard reset you have to
configure it aging if you use none default setting).
On the computer empty all the preferred SSID list.
Jack (MS, MVP-Networking)

"Marc" <(E-Mail Removed)> wrote in message
news:ADB7B37E-2458-4FEC-BA71-(E-Mail Removed)...
>I have two g adapters on the same desktop running WinXP SP3, I enable #1,
> with #2 disabled, and number 1 "sees"/connects to network: SSID1. I
> disable
> #1, enable #2: #2 does not even see SSID1 (i.e., Windows does not even
> show
> an "SSID1" on the Windows configuration, "View Wireless Networks". It
> does
> see many other networks all over my neighborhood). I now switch routers:
> turn-off router A and bring-up router B - both broadcast SSID1, same
> security
> settings, same location, etc. Now if I repeat the same process as above,
> enabling one adapter and disabling the other in turn, BOTH see SSID1 and
> can
> connect to it (ie, can connect to router B). I have not needed to change
> any
> configurations (except enable one adapter/disable the other) on the
> desktop,
> either adapter will connect... A router range problem with A? I bring
> router A within 5 feet of adapters; again repeating the enabling/disabling
> above. Same result: adapter #1 sees it -- with adapter #2, Windows does
> not
> even register an SSID1 on the Windows configuration, "View Wireless
> Networks". I have other wireless clients (e.g., iPhone, another laptop,
> etc.) that can "see" both routers A or B and can connect to either
> interchangeably at same range.
>
> Any thoughts, I am stumped. I could understand a conflict on the desktop
> with two adapters, but can't understand why router B works for both
> adapters
> on that desktop (both see SSID1 and can connect) and why router A's SSID1
> broadcast is "invisible" to adapter #2 and Windows?
>
> Thanks in advance,


 
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Ben
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      10-16-2008, 11:37 AM
Hi Mark,

I fail to see why you need to have 2 routers with the same settings or 2
adapters in one pc. My best guess is that #2 is an earlier adapter which
does not support the security of the routers, ie, it is only able to use WEP
and earlier and the router is set on WPA or later. Other than that have you
hidden the SSID in the routers settings?

"Marc" <(E-Mail Removed)> wrote in message
news:ADB7B37E-2458-4FEC-BA71-(E-Mail Removed)...
>I have two g adapters on the same desktop running WinXP SP3, I enable #1,
> with #2 disabled, and number 1 "sees"/connects to network: SSID1. I
> disable
> #1, enable #2: #2 does not even see SSID1 (i.e., Windows does not even
> show
> an "SSID1" on the Windows configuration, "View Wireless Networks". It
> does
> see many other networks all over my neighborhood). I now switch routers:
> turn-off router A and bring-up router B - both broadcast SSID1, same
> security
> settings, same location, etc. Now if I repeat the same process as above,
> enabling one adapter and disabling the other in turn, BOTH see SSID1 and
> can
> connect to it (ie, can connect to router B). I have not needed to change
> any
> configurations (except enable one adapter/disable the other) on the
> desktop,
> either adapter will connect... A router range problem with A? I bring
> router A within 5 feet of adapters; again repeating the enabling/disabling
> above. Same result: adapter #1 sees it -- with adapter #2, Windows does
> not
> even register an SSID1 on the Windows configuration, "View Wireless
> Networks". I have other wireless clients (e.g., iPhone, another laptop,
> etc.) that can "see" both routers A or B and can connect to either
> interchangeably at same range.
>
> Any thoughts, I am stumped. I could understand a conflict on the desktop
> with two adapters, but can't understand why router B works for both
> adapters
> on that desktop (both see SSID1 and can connect) and why router A's SSID1
> broadcast is "invisible" to adapter #2 and Windows?
>
> Thanks in advance,


 
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Marc
Guest
Posts: n/a

 
      10-16-2008, 07:56 PM
OK: Problem solved. First thanks a lot to all who weighed-in on this
problem. Admittedly it is somewhat "peculiar", but two adapters/two routers
notwithstanding -- it should work! ...and it does. The reason I wanted 2
adapters and two routers was to experiment with a long-range wifi set-up. I
had one tomato-flashed Linksys (router "A") and another D-Link DIR655 (router
"B") and a Netgear (adapter 1) and eNGenius/Senao (adapter 2) to test getting
maximum range on both adaptor and router transmitters. Both set-ups used
WPA2/AES security. ("Talking" above all the noise in my neighborhood was
hard...). The verdict is the tomato-flashed Linksys with transmit power up'd
to 100mW, along with the 200 mW transmit on the enGenius was superior in
throughput at long-range, in spite of MIMO technology on the DLink and
Netgear equipment. (The DLink MIMO played havoc with wifi connections to
iPod Touch and even iPhones, FYI.) So enough background. The solution/fix to
my problem was indeed on the router side. I did go back to "vanilla"
settings on the Linksys (Router A), but the tomato settings ultimately worked
fine too. Apparently a change of the original SSID1 to SSID2 did the
trick!!! Both adaptors see SSID2 and can connect to them. How infuriatingly
simple! (I am not yet daring enough to go back to SSID1 and see what
happens...) Such is life with WiFi and XP. Again, thanks to all.

"smlunatick" wrote:

> On Oct 16, 12:37 pm, "Ben" <HopeThisHe...@nospamplease.com> wrote:
> > Hi Mark,
> >
> > I fail to see why you need to have 2 routers with the same settings or 2
> > adapters in one pc. My best guess is that #2 is an earlier adapter which
> > does not support the security of the routers, ie, it is only able to use WEP
> > and earlier and the router is set on WPA or later. Other than that have you
> > hidden the SSID in the routers settings?
> >
> > "Marc" <M...@discussions.microsoft.com> wrote in message
> >
> > news:ADB7B37E-2458-4FEC-BA71-(E-Mail Removed)...
> >
> > >I have two g adapters on the same desktop running WinXP SP3, I enable #1,
> > > with #2 disabled, and number 1 "sees"/connects to network: SSID1. I
> > > disable
> > > #1, enable #2: #2 does not even see SSID1 (i.e., Windows does not even
> > > show
> > > an "SSID1" on the Windows configuration, "View Wireless Networks". It
> > > does
> > > see many other networks all over my neighborhood). I now switch routers:
> > > turn-off router A and bring-up router B - both broadcast SSID1, same
> > > security
> > > settings, same location, etc. Now if I repeat the same process as above,
> > > enabling one adapter and disabling the other in turn, BOTH see SSID1 and
> > > can
> > > connect to it (ie, can connect to router B). I have not needed to change
> > > any
> > > configurations (except enable one adapter/disable the other) on the
> > > desktop,
> > > either adapter will connect... A router range problem with A? I bring
> > > router A within 5 feet of adapters; again repeating the enabling/disabling
> > > above. Same result: adapter #1 sees it -- with adapter #2, Windows does
> > > not
> > > even register an SSID1 on the Windows configuration, "View Wireless
> > > Networks". I have other wireless clients (e.g., iPhone, another laptop,
> > > etc.) that can "see" both routers A or B and can connect to either
> > > interchangeably at same range.

> >
> > > Any thoughts, I am stumped. I could understand a conflict on the desktop
> > > with two adapters, but can't understand why router B works for both
> > > adapters
> > > on that desktop (both see SSID1 and can connect) and why router A's SSID1
> > > broadcast is "invisible" to adapter #2 and Windows?

> >
> > > Thanks in advance,

>
> Two router set up can be used in:
>
> 1) Load balancing
>
> 2) Redundancy configuration.
>
>
> However, this will be considered an advanced network set up and most
> "home network" grade routers might not do this type of set up
> correctly.
>

 
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