problem with dhcp and "stop"

chiorbol

Registered
Dear MacOs experts,
I'm a beginner, and I'm experiencing a problem with my dhcp setting.
After my MacBook is switched on, the network correctly works, via the dhcp (ethernet connection). If I put my MacBook on "stop" status, after the stop, the network does not restart. Going to "System Preferences -> Network", and then to "Ethernet", I noticed that if I click on "renew dhcp" I get a wrong ip address. I get a correct ip address only if I follow the following procedure:

- writing something (doesn't matter what, just something, also a single character is fine) in the field DHCP ID client;

- click on apply

and then I get a good IP number. If I click again on "renew dhcp" I get again a wrong IP address and my network connection does not work.

How can I solve this strange behaviour?

Thanks,
Massimiliano
 
What is the wrong IP address that you get? If it gets a 169.... address instead of 192... or what ever you have set for home, then that means that the computer can not even see the DHCP server.

Also, what do you mean by putting your macbook on "stop" status? do you mean that you flip down the monitor and put it to sleep?

Are you using Wireless or wired internet?

P.S. This actually goes in the network part of the forum.
 
Yes, I get a 169 instead of a 192. You say that the computer does not see the dhcp server, but it is not true. I try to better describe the behaviour:

If I go to "System Preferences->Network->Ethernet" and I click the button "Renew DHCP number", it gets the wrong number (169...) and the network doesn't work. If instead I write something in the box "DHCP client IP" (doesn't matter what I write, it is just to make the button "Apply" active), and then I push the button "apply", it gets the correct number and the network works. So the problem seems not to be in the network or dhcp itself, it seems to be in the "Renew dhcp number" button.


For stop status I mean the sleep, yes.

I am in a wired internet.

Thanks
 
Well, thats an intresting problem, I'll give you that. What I meant by that was 169 usually means you're unable to see the DHCP server. I'll keep on thinkin about this but in the mean time, you can make your IP address static.
 
When you click on System Preferences->Network, then in Network (in the top of the menu pane) use the pull down "Show:" and make sure it is set on Automatic. If it already on Automatic, make it something else, quit System Preferences, then re-open System Preferences->Network and make "Show:" Automatic again. This will reset the preference.

This may help.
 
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