Yes, tried all of these things, as per Apple Communities.
On Sep 29, 2014, at 10:18 AM, 'Chris Blouch' via MacVisionaries
<[email protected]> wrote:
> What have you tried so far? I assume you tried turning the wifi off and back
> on again? Did you try and renew DHCP Lease (unter the TCP/IP tab in the
> advanced settings)? Can you get the IP address, subnet mask, router and DNS
> address from one of your working devices, turn that device off and then
> manually config that on your Mac's wifi to see if that works?
>
> CB
>
> On 9/29/14, 9:27 AM, Christine Grassman wrote:
>> Hi. I've already tried the manual route; as stated, all other choices
>> beside DHCP are dimmed, and I don't know why. As for the router, the
>> documentation is not accessible, so I have no clue how to go about updating
>> the firmware. All other devices in the house are connecting just fine, and
>> the WiFi is showing on my status menu as present and on, but there is a
>> "self-assigned IP address" and it says it cannot connect to the Internet. I
>> cannot figure out how to change this IP address. I cannot erase it. I am at
>> a complete loss.
>> Christine
>>
>> On Sep 29, 2014, at 7:52 AM, Sabahattin Gucukoglu <[email protected]> wrote:
>>
>>> It sounds like there is some bad interaction between your Mac's DHCP client
>>> and your router's DHCP server since your upgrade. If your ISP already
>>> knows about it, presumably they already know about it.
>>>
>>> Do you have control over the router? If it has firmware, you should try to
>>> locate the latest version, and upgrade it. If the router is crippled by
>>> design because your ISP has control over it, my recommendation would be to
>>> buy your own router.
>>>
>>> You could try setting your IP address manually. In System Preferences,
>>> Network, you select your interface, then choose to configure IP manually;
>>> if it's not on the main screen, press Advanced and it's there on the TCP/IP
>>> tab. You've got to use an IP address and subnet mask compatible with your
>>> other devices; pick an IP not likely to be used, like near the end of your
>>> range. You could use Google DNS (8.8.8.8, 8.8.4.4) until you learn the
>>> addresses of other servers of your ISP, if desired.
>>>
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>
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>
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