Cannot ping at differnet times of the day on my wireless network

Hi

I'm almost a CCNA and I cant answer this question or figure out what's
wrong, I'm hoping someone who had experienced this problem will have a clue
of whats causing it. I have a Linksys WRT54G with the latest firmware
installed. 5 Computers are connected to it, one is connected by ethernet. The
other 4 by wireless ofcourse. All NIC cards are up to date with the latest
drivers. I just have a really strange issue, at different times of the day I
can't ping the PC which is in the dinning room. The dinning room does have a
heavy interferance from the outside HOWEVER, the interfernce from the outside
access point does not break the connection(between the pc and my ap). If i go
over to that pc physically and ping from there, I get a response for any pc.
It's just mind-boggling, is this a bug in windows xp sp2? They're set to
recieve their IP addresses automatically, thats the only PC on the network
that has that issue. Windows firewall disabled, no third party firewalls
installed. Kaspersky antivirus is installed. I really cant figure this out
but I'm guessin that somehow the interference is doing some black voodoo...
Also at certain times, for an unknown reason, two masters browsers become
present on the network, now I would understand that would cause a problem if
I'm pinging a netbios machine name, but to not get a response when pinging
the ip address directly that's just wrong. Your help will be of GREAT
appreciation!
P.S: the pinging problem is a temporary issue that seems to go away by
itself, if i wait for about 2 - 5 min it will start responding, but being a
person who likes a rock-solid stable network this is unacceptable, especially
whent the load on the network is very mineute.

Thank you for the response frank, I did setup a constant ping to the
machinename for about 10 min. The Ping was stable at 1ms for the most part
the only peak was about 17ms which is perfectly fine. This is what's making
this issue so bizzare, I'm actually starting to wonder wether my
communication is being jammed (the military in lebanon does operate on the
2.4ghz band, there also happens to be a high powered access point on the
building facing mine, also the cordless phone is using the 2.4ghz however, my
ap is setup on channel 11 and the AP that's being seen by my pc is using
channel 3, i tried to set it as far as possible because i believe every
channel has an 11mhz spacing. Anyhow, guess this will remain a mystery..)

Thank you for the response frank.
I hope someone could find a cause to this.

"Frankster" wrote:

> Set up a constant ping (i.e. ping machinename -t). If you get widely
> varying return times over a period of time, you probably have a hardware
> problem (radio interference, wire, connector, wi-fi card, network card,
> driver issue, etc.) rather than a setup and configuration issue.
>
> -Frank
>
> "Recon" <(E-Mail Removed)> wrote in message
> news882D514-B346-4415-9A75-(E-Mail Removed)...
> > Hi
> >
> > I'm almost a CCNA and I cant answer this question or figure out what's
> > wrong, I'm hoping someone who had experienced this problem will have a
> > clue
> > of whats causing it. I have a Linksys WRT54G with the latest firmware
> > installed. 5 Computers are connected to it, one is connected by ethernet.
> > The
> > other 4 by wireless ofcourse. All NIC cards are up to date with the latest
> > drivers. I just have a really strange issue, at different times of the day
> > I
> > can't ping the PC which is in the dinning room. The dinning room does have
> > a
> > heavy interferance from the outside HOWEVER, the interfernce from the
> > outside
> > access point does not break the connection(between the pc and my ap). If i
> > go
> > over to that pc physically and ping from there, I get a response for any
> > pc.
> > It's just mind-boggling, is this a bug in windows xp sp2? They're set to
> > recieve their IP addresses automatically, thats the only PC on the network
> > that has that issue. Windows firewall disabled, no third party firewalls
> > installed. Kaspersky antivirus is installed. I really cant figure this out
> > but I'm guessin that somehow the interference is doing some black
> > voodoo...
> > Also at certain times, for an unknown reason, two masters browsers become
> > present on the network, now I would understand that would cause a problem
> > if
> > I'm pinging a netbios machine name, but to not get a response when pinging
> > the ip address directly that's just wrong. Your help will be of GREAT
> > appreciation!
> > P.S: the pinging problem is a temporary issue that seems to go away by
> > itself, if i wait for about 2 - 5 min it will start responding, but being
> > a
> > person who likes a rock-solid stable network this is unacceptable,
> > especially
> > whent the load on the network is very mineute.
>
>
>

Hi Frank,

I just thought I'd note this, even though that 1 pc will stop responding, if
I go over there, it does have internet access and I'm able to ping any PC
from it. After pinging any PC from it, if i attempt to ping it back from any
other pc IT RESPONDS! This is truely mind-boggling, the ping rate is constant
at 1ms(only jumps were very rare and at 10ms or less). I should probably
contact SMC (the manufacturer) I'm really all out of ideas.

"Recon" wrote:

> Thank you for the response frank, I did setup a constant ping to the
> machinename for about 10 min. The Ping was stable at 1ms for the most part
> the only peak was about 17ms which is perfectly fine. This is what's making
> this issue so bizzare, I'm actually starting to wonder wether my
> communication is being jammed (the military in lebanon does operate on the
> 2.4ghz band, there also happens to be a high powered access point on the
> building facing mine, also the cordless phone is using the 2.4ghz however, my
> ap is setup on channel 11 and the AP that's being seen by my pc is using
> channel 3, i tried to set it as far as possible because i believe every
> channel has an 11mhz spacing. Anyhow, guess this will remain a mystery..)
>
> Thank you for the response frank.
> I hope someone could find a cause to this.
>
> "Frankster" wrote:
>
> > Set up a constant ping (i.e. ping machinename -t). If you get widely
> > varying return times over a period of time, you probably have a hardware
> > problem (radio interference, wire, connector, wi-fi card, network card,
> > driver issue, etc.) rather than a setup and configuration issue.
> >
> > -Frank
> >
> > "Recon" <(E-Mail Removed)> wrote in message
> > news882D514-B346-4415-9A75-(E-Mail Removed)...
> > > Hi
> > >
> > > I'm almost a CCNA and I cant answer this question or figure out what's
> > > wrong, I'm hoping someone who had experienced this problem will have a
> > > clue
> > > of whats causing it. I have a Linksys WRT54G with the latest firmware
> > > installed. 5 Computers are connected to it, one is connected by ethernet.
> > > The
> > > other 4 by wireless ofcourse. All NIC cards are up to date with the latest
> > > drivers. I just have a really strange issue, at different times of the day
> > > I
> > > can't ping the PC which is in the dinning room. The dinning room does have
> > > a
> > > heavy interferance from the outside HOWEVER, the interfernce from the
> > > outside
> > > access point does not break the connection(between the pc and my ap). If i
> > > go
> > > over to that pc physically and ping from there, I get a response for any
> > > pc.
> > > It's just mind-boggling, is this a bug in windows xp sp2? They're set to
> > > recieve their IP addresses automatically, thats the only PC on the network
> > > that has that issue. Windows firewall disabled, no third party firewalls
> > > installed. Kaspersky antivirus is installed. I really cant figure this out
> > > but I'm guessin that somehow the interference is doing some black
> > > voodoo...
> > > Also at certain times, for an unknown reason, two masters browsers become
> > > present on the network, now I would understand that would cause a problem
> > > if
> > > I'm pinging a netbios machine name, but to not get a response when pinging
> > > the ip address directly that's just wrong. Your help will be of GREAT
> > > appreciation!
> > > P.S: the pinging problem is a temporary issue that seems to go away by
> > > itself, if i wait for about 2 - 5 min it will start responding, but being
> > > a
> > > person who likes a rock-solid stable network this is unacceptable,
> > > especially
> > > whent the load on the network is very mineute.
> >
> >
> >

Hate to be triple posting but I forgot to mention, when the pc doesnt respond
from any pc i thought hey try from the web-interface of the router.
Surprisingly or is it, the pc did not even respond to the WRT54G (which has
latest correct firmware installed), release/renew or "repairing" do fix this
problem but this is not the way it should be... ARGH I got a headache. I sure
hope i wont experience such utterly bizzare issues when I practice my ccna,
ill be jobless heh.

"Recon" wrote:

> Thank you for the response frank, I did setup a constant ping to the
> machinename for about 10 min. The Ping was stable at 1ms for the most part
> the only peak was about 17ms which is perfectly fine. This is what's making
> this issue so bizzare, I'm actually starting to wonder wether my
> communication is being jammed (the military in lebanon does operate on the
> 2.4ghz band, there also happens to be a high powered access point on the
> building facing mine, also the cordless phone is using the 2.4ghz however, my
> ap is setup on channel 11 and the AP that's being seen by my pc is using
> channel 3, i tried to set it as far as possible because i believe every
> channel has an 11mhz spacing. Anyhow, guess this will remain a mystery..)
>
> Thank you for the response frank.
> I hope someone could find a cause to this.
>
> "Frankster" wrote:
>
> > Set up a constant ping (i.e. ping machinename -t). If you get widely
> > varying return times over a period of time, you probably have a hardware
> > problem (radio interference, wire, connector, wi-fi card, network card,
> > driver issue, etc.) rather than a setup and configuration issue.
> >
> > -Frank
> >
> > "Recon" <(E-Mail Removed)> wrote in message
> > news882D514-B346-4415-9A75-(E-Mail Removed)...
> > > Hi
> > >
> > > I'm almost a CCNA and I cant answer this question or figure out what's
> > > wrong, I'm hoping someone who had experienced this problem will have a
> > > clue
> > > of whats causing it. I have a Linksys WRT54G with the latest firmware
> > > installed. 5 Computers are connected to it, one is connected by ethernet.
> > > The
> > > other 4 by wireless ofcourse. All NIC cards are up to date with the latest
> > > drivers. I just have a really strange issue, at different times of the day
> > > I
> > > can't ping the PC which is in the dinning room. The dinning room does have
> > > a
> > > heavy interferance from the outside HOWEVER, the interfernce from the
> > > outside
> > > access point does not break the connection(between the pc and my ap). If i
> > > go
> > > over to that pc physically and ping from there, I get a response for any
> > > pc.
> > > It's just mind-boggling, is this a bug in windows xp sp2? They're set to
> > > recieve their IP addresses automatically, thats the only PC on the network
> > > that has that issue. Windows firewall disabled, no third party firewalls
> > > installed. Kaspersky antivirus is installed. I really cant figure this out
> > > but I'm guessin that somehow the interference is doing some black
> > > voodoo...
> > > Also at certain times, for an unknown reason, two masters browsers become
> > > present on the network, now I would understand that would cause a problem
> > > if
> > > I'm pinging a netbios machine name, but to not get a response when pinging
> > > the ip address directly that's just wrong. Your help will be of GREAT
> > > appreciation!
> > > P.S: the pinging problem is a temporary issue that seems to go away by
> > > itself, if i wait for about 2 - 5 min it will start responding, but being
> > > a
> > > person who likes a rock-solid stable network this is unacceptable,
> > > especially
> > > whent the load on the network is very mineute.
> >
> >
> >