System shows there is wifi & IP but it doesn't work.

Question

Level 1

36 points

System shows there is wifi & IP but it doesn't work.

I simply relocated my older MacPro to another room in the house and now no apps recognize any internet connection even though network diagnostics show a strong wireless connection and an active IP address. I've turned wifi off and back on, quit and reopened mail and safari, and rebooted the computer a few times. I always come back with the same thing. How can the system tell me there is wifi and an active IP and none of it works? I have no idea what to do next. Thanks for any advice.

iMac (Retina 5K, 27-inch, Late 2015), OS X El Capitan (10.11.1), MPro, MBookPro iPad iPhone iMacs

Posted on Jan 7, 2016 9:42 AM

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Answer 1

lllaass

Level 10

210,519 points

Jan 7, 2016 9:45 AM in response to JG Here

What is the IP address assigned to the Mac?

have you powered off and then back on your router and modem?

Do other devices successfully connect to the network when conn3cted to this network?

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Answer 2

JG Here Author

Level 1

36 points

Jan 7, 2016 11:47 AM in response to lllaass

Thanks lllaass. I did reboot the modem. And then the computer. Other devices, like the iMac I'm on now, and my iPhone all are fine with the wireless. The MPro IP shows 192.168.10.253, and the iMac I'm on shows 192.168.1.3. Still no real connection on the MPro.

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Answer 3

lllaass

Level 10

210,519 points

Jan 7, 2016 12:28 PM in response to JG Here

Those two IP addresses are real internal IP address and assigned by a router. However, they are assigned by different routers.

Are you connecting both devices to the same network? That does not seem to be the case.

Try forgetting the network and rejoining. Make sure that you are connecting to the correct network and not one with a similar or even same name.

Also try creating a new network location

http://macs.about.com/od/networking/qt/networklocation.htm

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Answer 4

JG Here Author

Level 1

36 points

Jan 7, 2016 4:47 PM in response to lllaass

There is only one network in my home with a unique name. Both machines are recognizing the same network. Only one is getting internet service.

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Answer 5

Jan 7, 2016 6:14 PM in response to JG Here

The MPro IP shows 192.168.10.253

the iMac I'm on shows 192.168.1.3

There are possible settings that would place those on the same Network, but they are extremely unlikely.

What is the Router address showing an a Mac that is connecting?

I think one of those devices is using a Manual IP Address, and it is set to something rather different from the Router Address, placing it on a Network by itself, unable to communicate. I expect if you set it to get its Address via DHCP, all will be well very quickly.

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Answer 6

JG Here Author

Level 1

36 points

Jan 7, 2016 8:35 PM in response to Grant Bennet-Alder

Got it! I created a new network of just my one computer and then did use DCHP to get the IP. I tried the DCHP method before a few times, but this time it cooperated. Thanks for all the help.

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