modem to router connection problem?

i`ve recently moved and changed my internet provider. now i`m using a cable-link (coaxial) thomson modem. it has a utp cable to connect it to my pc. i`m trying to connect the modem to a wireless adsl router that i`ve used in my previous location, a digicom 8e4253 model.
the problem is that i`m not able to configure the router and a conflict appears.
i need to use the adsl wireless router as a regular router
this is the setup that works:
---internet prov.(coaxial)-->[thomson modem]----(utp)-->[PC]
this is the setup that i need to configure:
---internet prov.(coaxial)-->[thomson modem]----(utp)-->[digicom adsl modem])))))))))wifi))))[PC]

note that the router has 1 phoneline-in slot and a 4 utp slots

Phoenix2010-08-29T02:55:10Z

Let me guess. You plugged in your PC directly to the modem without thinking of the consequences and rushing to try out the service. I really should not help you but I will because most others don't even know the solution. Get the modem disconnected from the router and PC. Then use the button on the back and reset the modem. Now connect the router and set it to DHCP and everything will be set.

What happened:
The moment you connected the PC to the modem the modem locked in to the MAC address of the NIC card on your PC. Since MAC addresses are hard wired and supposed to be unique your router's MAC address did not match and the modem refused to communicate to it. Clearing the modem with a reset wipes the existing lock so that it will make a new lock to the next NIC card that connects to it..

nike2u20002010-08-29T08:45:56Z

Hmm... I think the solution for this might be a: "tronky" subset of investigations. Query google on that, without the quotation marks, and it might help you...

Another way out of this, is to try to manually reset both your modem and adsl router in the same time and then have a QuickStart setup on your adsl router and find a way to clone your modem's mac, giving the router your modem's mac.

All the best

Greyolddave2010-08-29T11:32:44Z

Short answer: You cannot use the ADSL modem/router combo with a cable modem. It only works as a DSL unit from the phone line. Get a regular router.

chamers2016-10-19T06:41:26Z

it particularly is probable brought about by potential of a IP (internet Protocol) conflict. The modem and router are the two attempting to set the IP handle that would desire to reason confusion between the two and your community no longer working wisely. the reason you haven't any longer had this concern interior the previous is because of the fact up till now they have the two been on line and engaged on a similar time. although if one is going offline and the different continues to be on line it motives confusion whilst the only comes decrease back on line as to who might desire to now set the IP handle. (This explains why you need to use your modem promptly related to the pc.) usually to repair this on my own community I even have all of my community aspects working (modem, routers, switches, computers etc.) and related after which run the community setup wizard on all of the computers. although you may reset the community gadgets and see if that helps. Failing all that i could advise calling a consultant till now procuring a clean router as they are able to be costly and could final, in case you're no longer abusive to them, for numerous years.

Fratzz2010-08-29T03:20:20Z

There should be this option where you can set your router as a "Router" or as a "Gateway" mode

you need to set your cable modem in router mode (with DHCP disabled) ( where ur cable modem converts from cable protocol to ethernet protocol)

and

you need to set your dsl router in a gateway mode (with DHCP enabled) all your pcs should connect to this device.

Above is the concept. ive never tried it. you have to study both your devices to see where this actual function is.

Please do your own research on this topic. Typically i have 4 routers that i constantly flash with DDWRT, Tomato, OpenWrt etc. but i still have not got around to configuring them as gateways in my home network. Lazy to put of the DSL!!