Wireless router LAN problems

Hi,
I have a office with 2 x 8port DLINK ethernet switches connected to
each other. All the PCs connect to these two dlink switches. We are
able to use the LAN network across all the PCs without any problems.

There is also a Linksys wrtg54g wireless router connected to a free
port on this Dlink switch. The purpose is to access the office LAN
through my laptop having intel pro b/g wireless chipset. However from
time to time, I lose access to my LAN over the wireless connection.
However, there is good wireless connectivity & I'm able to ping the
router successfully. Also, the activity light on the router blinks to
indicate activity over the LAN cable connected to the dlink switch. The
connection works for a few minutes after powering the linksys off and
on and then stops working. I've tried a new wireless router without any
success. I know the laptop is fine because I'm able to use it at my
home without any problems.

Please help.

- Naveen

(E-Mail Removed) hath wroth:

>Hi,
>I have a office with 2 x 8port DLINK ethernet switches connected to
>each other. All the PCs connect to these two dlink switches. We are
>able to use the LAN network across all the PCs without any problems.
>
>There is also a Linksys wrtg54g wireless router connected to a free
>port on this Dlink switch. The purpose is to access the office LAN
>through my laptop having intel pro b/g wireless chipset. However from
>time to time, I lose access to my LAN over the wireless connection.
>However, there is good wireless connectivity & I'm able to ping the
>router successfully. Also, the activity light on the router blinks to
>indicate activity over the LAN cable connected to the dlink switch. The
>connection works for a few minutes after powering the linksys off and
>on and then stops working. I've tried a new wireless router without any
>success. I know the laptop is fine because I'm able to use it at my
>home without any problems.

If it's not the wireless router, and the wireless client computer
appears to be functional, that leaves RF interfence. Each source has
its own characteristic pattern. Reading between your lines, it sounds
like microwave oven or cordless phone interference. However, I'm
guessing. Can you supply a better description of the pattern? How
long do you stay diconnected and how often?

Checklist of possible interference sources:
Microwave oven
2.4Ghz video or security camera link (X10).
Municipal wireless networks.
Bluetooth devices (mouse, phone, PDA, headset, cell phone, etc)
Portable wireless TV camera used at sports events.
Frequency hopping cordless phones (Panasonic Gigarange)
802.11b/g wireless keyboards, PDA's, and cell phones.
2.4GHz game pads and controllers.
RF Excited Lighting (Fusion Lighting).
2.4GHz baby monitors.
2.4GHz ham radio operation.
WISP (wireless internet service providers) which may be using
non-802.11 type of modulation (i.e. WiMax).
Breezecom/Alvarion/Symbol/Raylink frequency hopping networks.
Western Multiplex or Proxim non-802.11 wireless links. (e.g Lynx).
HomeRF frequency hopping network.
Zigbee 802.15.4 sensor wireless network.
Microwave fruit drying oven, plastic mold preheater.
Unstable high power wi-fi power amplifier spraying garbage.

--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

Hi Jeff,
Certainly it cannot be the interference as the cordless phone I use
operates at 900Mhz and there is no possibility of other sources in the
office. I can also say this is not the case as I'm able to ping the
Linksys successfully each time and I'm always able to login into its
admin page through my laptop successfully.

Naveen.

(E-Mail Removed) hath wroth:

>Hi Jeff,
>Certainly it cannot be the interference as the cordless phone I use
>operates at 900Mhz and there is no possibility of other sources in the
>office. I can also say this is not the case as I'm able to ping the
>Linksys successfully each time and I'm always able to login into its
>admin page through my laptop successfully.

If you're able to login to your admin page successfully in the router
via wireless, but cannot connect to the internet, then there's
something wrong on the WAN (internet) side of the puzzle. It's not a
wireless problem. This will need to be handled by whomever does your
office IT. If you have a DSL or cable modem, watch the "sync" or
"WAN" lights when it goes comatose to see if you're losing the
connection. Also, try one of the free ping monitor programs to ping
the gateway IP address at your ISP (first connection on the way to the
internet) from a desktop PC. That will identify if you're losing your
internet connection.
http://www.tools4ever.com/products/free/freeping/

--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558