Technical help needed - pulling my hair out

Found 8th Mar 2007
Hi All

I have a Linksys WAG54g wireless ADSL router that I need to connect to so I can change a couple of settings.

When I plug an ethernet cable between the NIC and the router I just get two simultaneous flashing lights on the NIC but no connection and nothing on the router.

The laptop does register a cable being plugged in because I get the usual 'network cable is unplugged message' but nothing else.

I've tried another ethernet cable, reset TCP/IP, tried 3 different driver versions and rolled my system back to when I know it was working before.

The NIC is a SIS 900 (very common) on board on an Acer Aspire 3000 laptop.

The strange thing is Wireless works perfectly which I would have thought would rule out a physical problem with the NIC.

I've had a good look for any existing threads but couldn't find anything useful.

Thought I would try here first in case anyone can come up with some more suggestions.

Personally I just want to take a large hammer to it to vent some frustration :roll:

Any help would be really appreciated. The router is configured for a mix of 802.11b/g at the moment and I need to change it back to 802.11g dedicated as my 54Mbps connection is only running at about 20% of what it should.

Greg

11 Comments

Is the NIC showing in Device Manager list? No red crosses next to it?

Start > Control Panel > System > Hardware > Device Manager

Original Poster

Thanks Bertt. Just posted over there too

Original Poster

Is the NIC showing in Device Manager list? No red crosses next to it?



Yep. I've also uninstalled it and tried three different driver versions.

The strange thing is Wireless works perfectly which I would have thought … The strange thing is Wireless works perfectly which I would have thought would rule out a physical problem with the NIC.


Er... why would it rule that out? Wired NIC and Wireless NIC are two different things.

As to wired one- check that you enabled DHCP on this one. If it is enabled but no show, take a look at IP address of your wireless conection and make static IP on your wired nic similar (but it has to be unique).
For example, if your router is 192.168.1.254 and wireless address is 192.168.1.10, then make it 192.168.1.21.
Once you've got this done, open DOS window (Start->Run->cmd) and type "ping 192.168.1.254" without quotes. Instead of 192.168.1.254 put your router address as you got it from wireless.
Post here the results.

Original Poster

Er... Think tiredness had kicked in :oops: Just realised the wireless nic is mini pci and obviously the wired nic is an on board device. :thumbsup:

I'll try your suggestion when I get home this afternoon and let you know how I get on.

Thanks K

The other thing to try is the cable - are you using the correct type (there's cross-over & straight-through; you need straight-through)? Also, is the cable faulty?

Original Poster

The other thing to try is the cable



Tried two cables, one that worked before but neither worked now

Greg,

I've had a similar problem to you which turned out to be quite widespread for WAG54G users. Over time the ports on the router go faulty, so you can only connect to them at 10 meg half duplex, rather than autonegotiation. Try to force your onboard NIC to this speed and see if it maintains a connection.

Cheers,
Matt.

Original Poster

Thanks matt - I didn't have chance to look at it again yesterday but will try again tonight. I did think of the link speed and duplex but didn't bother changing it from Auto.

Will try again tonight and let you know.

Greg

And welcome to HUKD by the way!

Original Poster

Sorted! Can't believe I can only connect to my router at 10 meg half duplex now. Really strange.

Really grateful to everyone for you help.

Greg
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