Self assigned IP address

TThank you EricDY my wifi connection was driving me close to insanity! I know you posted two years ago but has helped me greatly!! Thank you

Sheer brilliance!!! Thank you so much!

This also worked for me on a work wifi system where you are not able to reboot the modum.

Good job! Thank you, worked like a charm.

This is what worked for me. Except I may have screwed things up worse. Currently a nomad roaming through Europe so I am getting lots of new wi fi connections every few days. The steps are as follows.

• Step 1: Make sure your phone is connected to the same wi fi you want your mac to be
• Step 2: Go to Network Preferences / Advanced
• Step 3: Go to the TCP/IP tab
• Step 4: Change the configure IPv4 tab to “using DHCP with manual address”
• Step 5: Copy the exact numbers from your phone onto the manual settings. Make sure that you change the last digit on the IPv4 address
• Step 6: Your wi fi needs to be switched on and off. You can do this in the network preferences tab, next to the status bar
• Step 7: You should now be connected

Hi

I tried everything several times, and nothing worked for me, restart modem, I deleted the com.apple.alf.plist file, created a new location on Networks, deleted the keychains, etc... and the only thing that worked for me was to change my wifi name and password.

Simply deleting one file - the com.apple.al.plist in Mac HD/library/pref/folder worked for me - many thanks everyone for sharing your solutions. My issue was just that my macbook pro self-assigned every time I wanted to go online - I could at least get online if I waited for around 30 seconds but it was frustrating.

Thanks Festee

Thank you Thank you 🙂 i have tp-link router N600 and i did what you sagest but without factory reset ..this work with me.

Regards

Jim_ Crawford, you're a rockstar! I tried absolutely everything on this board. Took me hours and nothing worked. I doubted this would work too ...but it did!! Thanks so much!

I had this problem on-and-off for a while.

But I have finally decided that the problem is not mine. What appears to be happening, is that the internet provider system (not my router) was going down intermittently. But Apple Mail misinterpreted that as an error in the Mail system.

But there is not problem at all. Now all the tourists have gone, and the internet provider is not overloaded, everything is fine.

R

This happens to me all the time. After fiddling with the above advised fixes for about 40 minuets and repeatedly restarting my computer something usually works but no single solution seems to work consistently or immediately. However, I have noticed a pattern to when it occurs. I only have this problem if the last wifi network I have connected to was at my apartment and then I subsequently attempt to connect to the wifi at a local coffee shop. I have found that I do not have the problem if, after working from home, I turn off the wifi and shut down the lap top completely. If I then boot my computer at the coffee shop and physically turn on the wifi I do not have the problem. I do not know what causes this problem. However, i have found that the problem does not happen if I have shut down the wifi after using it at my house. Best of luck.

Mthanks Festee,

have tried a lot and finally the TP LINK solution of just changing signal width to 20 mhz and setting channel to 11 worked.

brgds.

daniel.

I tried this but i cou find the network in my keychains

what do i do ?

"You may find that your iPhone can pick up the network. If so, check your phone under settings / WiFi right arrow on chosen network and see what IP your phone has picked up. Put the same IP into your laptop using "Manually" - just use a different last digit."

- Perfect! After all of the above failed, this worked. Thank you.

OK, This may seem a little on the "duh" side of things but, I was having the same issue of "assigned IP address" and no internet connection

and realized that days before I had turned off my fire wall. I turned it back on and problem was gone. Just check to see if your firewall is even turned on.