Help, my desktop can't connect to my new router

[max347]

Hey everyone, I got a new Asus RT56U in to replace an old G router. Unfortunately, my desktop is having problems connecting to it.

I have set it up with DHCP enabled, and the router is getting internet (the interface tells you when it has access).

My laptop and phone can now wirelessly connect fine. My netflix streamer connects fine via hardwire.

However, my desktop (with wireless card) gets no internet. On the old router, it connects flawlessly. Let me clarify- old router connected at 54Mbps, Asus now gives it a 'connection' of 150Mbps. However, it says connected to the network, no internet access.

Now the strange thing. My laptop is sitting right next to the desktop, both are getting full signal and only the laptop gets internet. My phone (sitting right here as well) also gets internet. I have tried pinging the routers ip with my desktop, and it times out.

Firewall then? Nope, disabled the firewall of the router and Windows firewall, neither did the trick.

The desktop uses a Realtek RTL8191SE 802.11n card
The Laptop uses an Intel PRO 3945ABG
The phone is a Note II

I have tried disconnecting them all in different sequences to see if it was only giving internet to the first X devices, but nope, always the desktop. The Router interface tells me the computer has been assigned an IP and should have internet (it is a very good interface).

All 3 devices work perfectly on the old router.

Any ideas/suggestions?

 

[AnonymouseUser]

EDIT >> Re-read, and apparently misunderstood originally. n/m

 

[ch33zw1z]

Are you using a different type of encryption on the new router? WPA2 instead of WPA? or AES instead of TKIP?

 

[s44]

Did it set up as a new connection in Windows? Have you tried updating to the latest drivers on Realtek's site?

 

[seepy83]

Is the wireless connection on your desktop configured to get DNS configuration from DHCP? If you had static DNS entries on the desktop, and it was pointing to your old router for DNS, and the new router has a different local IP address than the old one, then that would be your problem.

 

[max347]

Same encryption and both used AES. I used the same SSID as well. On the laptop/phone, I did not have to create a new connection. On the desktop, since it was not working I deleted the connection and tried making a new one, neither worked.

I'll try a driver update, didn't even think of that.

No static IPs on my network, however I did try assigning the desktop a static IP to see if that would make a difference- nope.

Both routers use the standard 192.168.1.1 address too

Thanks for the ideas guys, I'll try the driver update tonight and check it out.

Thanks, Max

 

[s44]

Try flushing your Windows DNS cache too.

 

[seepy83]

post the results of running ipconfig /all from a command prompt on the desktop, and on one of your laptops that is working.

 

[Danimal1209]

Try changing the address of the router. You might have the old router's MAC in the PC's ARP cache.

 

[max347]

Hey guys, changed the address and updated the driver and everything is working now.

Thank you so much!!

 

[Danimal1209]

Your PC has an ARP cache that resolves an IP address to a MAC address. So, when you had the new router with the same IP, it was looking for the MAC of the old router.