All of a sudden I have lost connectivity to the internet (ie on the external link) when I try to access through any of the wired ports. LAN access is fine (I am using it to type this).
So I know that my modem is ok, my adsl link is ok, my network setup is ok.
I can access (over the wired links) the barricade control panel, and through it, to the modem control panel - but no further.
I can communicate between PCs linked to the barricade.
Just happened suddenly last night - came back from a meeting to find the external connectivity had just died.
Any help will be a life-saver! Thanks.
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Re: Lost connection over wired LAN - wireless OK
A common fix is to re-set the modem. Just unplug the power to the modem for 30 seconds, then re-connect it.
You could also bypass the router momentarily to see if the modem is working. Just connect one of the computers directly to the modem to verify connectivity.
Your control panel should also have a utility to renew the IP address.
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Are you using LAN? You can only access Administration if you reset the device through LAN (pressing reset button). You cannot access Admin config after reset through wireless... If your already using LAN, try turning your firewall off. And oh, your LAN should be plugged in to one of the LAN ports and not in the WAN port...
Assuming you would have checked your LAN port. Try using a USB LAN port device and see if it picks up. Else you can test connecting the modem via Ethernet cable to another machine. Does it work,? If it does then its your machine.
DO any of these error conditions show up on the front panel display?
Front-Panel Lights and Error Conditions
Light Turns Off During Startup If:
RECEIVE The downstream receive channel cannot be acquired
SEND The upstream send channel cannot be acquired
ONLINE IP registration is unsuccessful
POWER The SBG900 is not properly plugged into the
Light Turns Off During Normal Operation If:
RECEIVE The downstream channel is lost
SEND The upstream channel is lost
ONLINE IP registration is lost
POWER The SBG900 is unplugged
If you rent or lease your SBG900 Contact your cable service provider.
If you own your SBG900 Call 1-877-466-8646 for technical and warranty support. Support is available
24 hours a day, seven days a week.
Try turning off the router for 30 secs, then power it up again.
Then try connecting a LAN cable from the computer to the router and see if you can connect to the Internet.
If you can connect to the Internet then -
With the LAN cable open a browser and type in the configuration URL and check the Wireless settings, then check and/or the wireless card settings (it should have the router's SSID and encryption settings etc.)
Also install the latest wireless card driver.
Then test the wireless and Internet connection. If this doesn't work -
Next connect the computer with a LAN cable to the cable or DSL modem to see if you can connect to the Internet.
If you cannot get an Internet connection with the LAN cable, contact your ISP and get them to test the connection to your modem.
If the modem and Internet is OK and you still cannot get a wireless connection then the problem could be a faulty wireless router.
Go to the Device Manager and check Wireless Network Adapter properties. Is the Wireless adapter installed, working properly and enabled? If not then reinstall the wireless LAN driver.
If it is OK then go to the Control Panel and click on Network Connections and right click on the wireless connection anf then click on Repair. This will make the wireless router issue a new IP address to the wireless LAN card and you whould now get access to the Internet & your network.
If this doesn't work power down your wireless router wait 1/2 minute, power up and boot up your laptop after all the normal LEDs on the wireless are on.
Let me know if you still have problems plus all error messages.
typically at home you don't need any proxy settings configured within internet explorer. often in a work environment proxy settings can be applied.
if you think thar you have access to modify the settings do the following;
right click the IE7 (same for IE6) icon on your desktop select properties and select internet properties on the dropdown list.
left click the "Connections" tab
left click the LAN Settings button
deselect all of the ticks (most importantly the Proxy server part)
left click OK
left click OK
then open up IE normally and see if this has worked.
note of caution though; if as you suspect group policy is pushing the settings, next time you logon to the company LAN your changes may be lost and you will need to remove the ticks again.
also if you still get no joy try leaving the Automatically detect settings ticked with the proxy part unticked.