jmir1977's profile

New Poster

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1 Message

Thu, Feb 11, 2021 6:00 AM

Re: Ethernet Works But WiFi Does Not

mine is set for automatic.  Tech support says my IP address is good.  Do I need a static IP address assigned?

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flatlander3

Regular Contributor

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176 Messages

2 m ago

Just for a test, check to see if you are actually connected to wifi on the device:

 

windows --> cmd (prompt) -- type ipconfig /all

linux shell --> ifconfig

 

Does the IP address look reasonable for your internal network?  Not something strange like the default windows 169.x.x.x with no gateway or no ipaddress at all (linux).

 

If it does, try forgetting the wifi network, then rejoin.  If you reset your gateway recently, there might be a problem with a cached key mismatch and it's not really joined.  And if it's windows, when in doubt, reboot 🙂

jav6joev

Bronze Problem Solver

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2.1K Messages

2 m ago


@jmir1977 wrote:

mine is set for automatic.  Tech support says my IP address is good.  Do I need a static IP address assigned?


On your device connecting to WiFi but failing to have Internet access, you might look at its WiFi settings to see if it has DNS servers assigned. If the WiFi setting for DNS is auto, you should have 75.75.75.75 and/or 75.75.76.76 as addresses.  If the setting is manual, you have to enter DNS server addresses manually, whether you want to use the Xfinity, Google or other addresses.

Also, is there a Gateway address assigned in the WiFi settings?

Official Employee

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135 Messages

2 m ago

Hello, @jmir1977. I hope all is well. Thank you everyone as well for all your input to help jmir1977 fix this issue. If nothing worked, please feel free to send me a PM so I can look further into this for you. We are here at your convenience 24/7. Look forward to hearing from you. 🙂 

 

To send me a private message, click on my name, "ComcastKorie," and then click send a message.

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EG

Expert

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86.2K Messages

2 m ago

@jmir1977 

 

If you are using a Comcast supplied gateway device, be advised that you can't enter the DNS "manually". DNS can not be altered period.

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!tick

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