Problem with Internal and External IP-addresses

[conger]

Hello.
I have a WL-500G with original 1.9.2.7 firmware from Asus.
My problem is that my router some times updates DynDns with the internal IP-address of the router instead of my external address from the ISP. When this happens, I can’t get out to the Internet either. I have to restart my router, another thing is that the new address always is 198.168.1.33, but I have set my IP-range from 198.168.1.1 to 198.168.1.10.
Is there someone who could help me with my problem?

Thanks

[Oleg]

Looks like you've connected WAN and LAN ports together using hub. This is not allowed if use wl500g in the router or home gateway mode.

[conger]

Thanks for a quick answer.
I don’t exactly understand what you mean with “connected WAN and LAN ports together using hub” but I have a cable modem who are connected to my WAN port in my router. The LAN port is connected to my Ethernet card. I use the router in gateway mode. Because of problem with VPN at work, I had to change the internal Address from 192.X.X to 198.X.X. I have used my router for 3 months, this problem have occurred maybe four or five times.

[barsju]

The ddns script in the router can only see the ip on its wan port. You can find a solution in this thread:
http://wl500g.info/showthread.php?t=1229

Sjur