Not getting an IP

[Adam Falt]

For starters this how my cable goes:

modem-ethnernet wall outlet-switch-pc*

Problem: not getting an ip 

What ive already tried:

• Reboot (ofc)
• ip config/renew and all those commands
• router-pc via cable works fine

Side notes: 

• it works perfectly for every one else on the network
• DHCP is enabled

________________

So im not geting a IP from my modem and ive finally given up and is now turning towards LTT  forum for help

 

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*yes i know the risks of runing directly form the modem 

[Volbet]

This is a really weird existential moment.... 

Science fiction movies always taught me that you shouldn't meet your alternate self, but this is not what I expected. 

It feels like being in an episode of the Twilight Zone.

 

Does your router actually recognize your PC's MAC address? If it does you can just assign it a static IP. 

[Adam Falt]

5 minutes ago, Volbet said:

This is a really weird existential moment.... 

Science fiction movies always taught me that you shouldn't meet your clone, but this is not what I expected. 

 

Does your router actually recognize your PC's MAC address? If it does you can just assign it a static IP. 

No im connected via the modem the router is not invlovled

The matrix has glitched again

[Volbet]

Just now, Adam Falt said:

No im connected via the modem the router is not invlovled 

Well, is the modem set into bridge mode? If it is it won't really deal out IP addresses. That would be the router. 

You couid also check if the modem is recognizing your PC on the network and just not assigning it an IP address.

[Adam Falt]

i have no way of checking that exept that every other pc that is direvtly connected to the modem works fine

[Donut417]

Ok is it a modem/router combo or just a modem. Because generally your ISP will only provide a single IP address. So if you have multiple computers connected via a switch connected to the modem, then you must have a modem/router combo for the other machines to be connected. That leads me to believe that there could be an issue with the DHCP server, which you will need to login to your Modem/router combo to check. My guess, is the DHCP server ran out of addresses or something. Or you could have the other devices MAC addresses white listed. 

[Adam Falt]

On 2017-05-14 at 5:03 PM, Donut417 said:

Ok is it a modem/router combo or just a modem. Because generally your ISP will only provide a single IP address. So if you have multiple computers connected via a switch connected to the modem, then you must have a modem/router combo for the other machines to be connected. That leads me to believe that there could be an issue with the DHCP server, which you will need to login to your Modem/router combo to check. My guess, is the DHCP server ran out of addresses or something. Or you could have the other devices MAC addresses white listed. 

Yeah it was late and my brain was not functioning and i figured that out, thx anyways! I feel so stupid since im a network engineer... I never thought of DHCP until i woke up the next morning. Never do stuff at midnight