Cable Forum - View Single Post - Superhub Modem Mode

ferretuk · 09-10-2013, 08:09

The power up sequence is not relevant to the OP's issue... Turning the router on after the modem will speed reconnection up as its first DHCP request will be replied to and it won't have to back off and try again after a timeout...

Back to the OP's problem however...

Try my suggestion of testing with a PC first. Other tests you can do are:

Check the router WAN config is set to DHCP and not PPPoE or similar. Try selecting a different connection method and then reverting back to DHCP.

If you have a second PC try configuring it to be on a different subnet as you LAN and give your router WAN a static address in the same range. Set the gateway on the second PC to be the WAN address and then try pinging the second PC from a machine on your LAN.

Put the router back to DHCP on the WAN and connect the WAN port to a LAN port. Look at the router GUI and confirm that the WAN port gets an address allocated.

Finally - Have you put your router back on the stock firmware or are you still on DD-WRT? Remember you had a similar issue when you changed to DD-WRT in January...

09-10-2013, 08:09	#8
ferretuk Inactive Join Date: Dec 2006 Services: Plusnet Unlimited FTTC Posts: 501	Re: Modem Mode - Can no longer detect WAN IP The power up sequence is not relevant to the OP's issue... Turning the router on after the modem will speed reconnection up as its first DHCP request will be replied to and it won't have to back off and try again after a timeout... Back to the OP's problem however... Try my suggestion of testing with a PC first. Other tests you can do are: Check the router WAN config is set to DHCP and not PPPoE or similar. Try selecting a different connection method and then reverting back to DHCP. If you have a second PC try configuring it to be on a different subnet as you LAN and give your router WAN a static address in the same range. Set the gateway on the second PC to be the WAN address and then try pinging the second PC from a machine on your LAN. Put the router back to DHCP on the WAN and connect the WAN port to a LAN port. Look at the router GUI and confirm that the WAN port gets an address allocated. Finally - Have you put your router back on the stock firmware or are you still on DD-WRT? Remember you had a similar issue when you changed to DD-WRT in January...