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Salty_Matzaballs
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Tuesday, September 17th, 2024 3:30 PM

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Thunderbird Localhost error

I installed Thunderbird in an attempt to get away from the dreadful 'new outlook'. It worked great for a few days, then I started getting this error:

Unable to connect

An error occurred during a connection to localhost.

    The site could be temporarily unavailable or too busy. Try again in a few moments.
    If you are unable to load any pages, check your computer’s network connection.
    If your computer or network is protected by a firewall or proxy, make sure that Thunderbird is permitted to access the web.

I have wasted way too much time trying to fix this issue. I tried disabling the firewall and changing all the settings I can find, but nothing works. getting quite annoyed.

Please help.

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2 months ago

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Accepted Solution

BruceW

Gold Problem Solver

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26K Messages

2 months ago

... Server Name: imap.comcast.net ... Authentication method   OAuth2 ...

To use Thunderbird to access Xfinity email, you can't use Oauth2. Their email systems do not support it. You have to use Normal Password.

Why is Thunderbird pointed to localhost?

Please be aware that there are 2 kinds of responses in this Forum: Replies and Comments. When you Comment on a post by scrolling down to "Comment on this post here...", I am notified of your response. But if you select Reply, I am NOT notified and may not be aware of your response.

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Again

Expert

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31K Messages

2 months ago

@Salty_Matzaballs 

I installed Thunderbird in an attempt to get away from the dreadful 'new outlook'. It worked great for a few days, then I started getting this error:

Unable to connect

An error occurred during a connection to localhost.

    The site could be temporarily unavailable or too busy. Try again in a few moments.
    If you are unable to load any pages, check your computer’s network connection.
    If your computer or network is protected by a firewall or proxy, make sure that Thunderbird is permitted to access the web.

I have wasted way too much time trying to fix this issue. I tried disabling the firewall and changing all the settings I can find, but nothing works. getting quite annoyed.

Please help.

What are your server settings for incoming and outgoing?

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Salty_Matzaballs

Visitor

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4 Messages

Incoming is:

Server Name: imap.comcast.net     Port: 993 

Connection Security    SSL/TSL

Authentication method   OAuth2

Outgoing:

STMP.comcast.net  Port: 465

Authentication method   OAuth2

Connection Security    SSL/TSL

Is it possible that windows 11 is part of the problem?

(edited)

2 months ago

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Salty_Matzaballs

Visitor

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4 Messages

2 months ago

Thank YOU!!!  I changed the authentication method to regular password, and Thunderbird connected right away. I honestly have no idea about localhost. It must be a default setting.

Thank you so much.

1

XfinityAdrienne

Official Employee

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911 Messages

Hey there, @Salty_Matzaballs! Thank you so much for taking the time to reach out to us here on the Xfinity Forums! I am happy you were able to resolve the error in the 3rd party client with the suggestions from @BruceW and @Again! Please let us know if you have any other questions/concerns, we are happy to help! 

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick

2 months ago

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