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I am suddennly unable to connect with my ISP's email

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  • 2 have this problem
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  • Last reply by Matt

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I have previously been connecting to my ISP's email server without difficulty. Now I am unable to. My ISP has gone through the account, and has found nothing wrong--all settings ok. They can operate my account with no difficulty. My ISP is fairly sure that the problem lies in Thunderbird.

Help!

I have previously been connecting to my ISP's email server without difficulty. Now I am unable to. My ISP has gone through the account, and has found nothing wrong--all settings ok. They can operate my account with no difficulty. My ISP is fairly sure that the problem lies in Thunderbird. Help!

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If it suddenly happened and their are no account settings error I am almost certain the problem is not Thunderbird.

Try the following:

  • Restart Thunderbird with add-ons disabled (Thunderbird Safe Mode). On the Help menu, click on "Restart with Add-ons Disabled". If Thunderbird works like normal, there is an Add-on or Theme interfering with normal operations. You will need to re-enable add-ons one at a time until you locate the offender.
  • Restart the operating system in safe mode with Networking. This loads only the very basics needed to start your computer while enabling an Internet connection. Click on your operating system for instructions on how to start in safe mode: Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, OSX
If safe mode for the operating system fixes the issue, there's other software in your computer that's causing problems. Possibilities include but not limited to: AV scanning, virus/malware, background downloads such as program updates.

If that does not help. Please add the troubleshooting information to your post To find the Troubleshooting information:

  • Open Help (or click on three-line-icon and select Help)
  • Choose Troubleshooting Information
  • Use the button Copy to clipboard to select all. Do not check box "Include account names"!
  • Paste this in your post.