Accessing the web interface on my HP CP3525n

[Eric_DK]

Previously, I have been able to access the web interface from a browser via the printer's IP address.

When I try to do it now, I get a security error complaing about an old (outdated) TLS version.

This happens with the latest versions of Firefox, Chrome and Edge.

What can I do to regain access to the web interface?

Best regards  from Denmark,

Eric

[VikramTheGreat]

Hi @Eric_DK,

Welcome to HP Support Community.
 

Thank you for posting your query, I will be glad to help you.

It sounds like your HP Color LaserJet CP3525n printer’s web interface is using an outdated TLS version that modern browsers no longer support by default. This is why you're getting a security error when trying to access it.
 

To regain access, you have a few options:
 

Solution 1: Use a Browser That Supports Older TLS Versions

Some older browsers still support outdated TLS versions. Try using:
🔹 Internet Explorer (IE11) (if available)
🔹 Old versions of Firefox or Chrome (Portable versions can be found online)

If you don’t want to install an older browser, try Microsoft Edge in IE Mode:
1️. Open Edge and type edge://settings/defaultBrowser in the address bar.
2️. Under "Internet Explorer compatibility", set "Allow sites to be reloaded in Internet Explorer mode" to Enabled.
3️. Restart Edge, go to your printer’s IP address, and click Reload in IE mode.

Solution 2: Enable Older TLS Versions in Firefox

1️. Open Firefox and type about: config in the address bar.
2️. Search for security.tls.version.min and security.tls.version.enable-deprecated.
3️. Set security.tls.version.min to 1 ( allows TLS 1.0 & 1.1).
4️. Set security.tls.version.enable-deprecated to true.
5️. Restart Firefox and try accessing the printer again.

Solution 3: Enable Older TLS Versions in Chrome/Edge

Chrome and Edge removed support for older TLS versions, but you can re-enable it temporarily:
1️. Open Chrome and go to chrome://flags/#enable-legacy-tls.
2️. Enable the "Legacy TLS Versions" option.
3️. Restart Chrome and try accessing the printer again.

Solution 4: Update Printer Firmware (If Available)

If your printer has a firmware update available, it may include support for newer TLS versions:
1️. Go to HP’s support website: HP Software & Driver Downloads
2️. Search for your printer model (HP Color LaserJet CP3525n).
3️. Download and install the latest firmware update.

If you can update your printer's firmware, that’s the best long-term fix. Otherwise, enabling older TLS versions in Firefox or using an older browser should work as a temporary workaround.

Let me know which method works for you or if you need further guidance! 😊

I hope this helps.

Take care and have a good day.

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

VikramTheGreat

HP Support 

[VikramTheGreat]

Hi @Eric_DK,

Welcome to HP Support Community.
 

Thank you for posting your query, I will be glad to help you.

It sounds like your HP Color LaserJet CP3525n printer’s web interface is using an outdated TLS version that modern browsers no longer support by default. This is why you're getting a security error when trying to access it.
 

To regain access, you have a few options:
 

Solution 1: Use a Browser That Supports Older TLS Versions

Some older browsers still support outdated TLS versions. Try using:
🔹 Internet Explorer (IE11) (if available)
🔹 Old versions of Firefox or Chrome (Portable versions can be found online)

If you don’t want to install an older browser, try Microsoft Edge in IE Mode:
1️. Open Edge and type edge://settings/defaultBrowser in the address bar.
2️. Under "Internet Explorer compatibility", set "Allow sites to be reloaded in Internet Explorer mode" to Enabled.
3️. Restart Edge, go to your printer’s IP address, and click Reload in IE mode.

Solution 2: Enable Older TLS Versions in Firefox

1️. Open Firefox and type about: config in the address bar.
2️. Search for security.tls.version.min and security.tls.version.enable-deprecated.
3️. Set security.tls.version.min to 1 ( allows TLS 1.0 & 1.1).
4️. Set security.tls.version.enable-deprecated to true.
5️. Restart Firefox and try accessing the printer again.

Additional steps shared on the next post

[VikramTheGreat]

Hi @Eric_DK,

Solution 3: Enable Older TLS Versions in Chrome/Edge

Chrome and Edge removed support for older TLS versions, but you can re-enable it temporarily:
1️. Open Chrome and go to chrome://flags/#enable-legacy-tls.
2️. Enable the "Legacy TLS Versions" option.
3️. Restart Chrome and try accessing the printer again.

Solution 4: Update Printer Firmware (If Available)

If your printer has a firmware update available, it may include support for newer TLS versions:
1️. Go to HP’s support website: HP Software & Driver Downloads
2️. Search for your printer model (HP Color LaserJet CP3525n).
3️. Download and install the latest firmware update.

If you can update your printer's firmware, that’s the best long-term fix. Otherwise, enabling older TLS versions in Firefox or using an older browser should work as a temporary workaround.

Let me know which method works for you or if you need further guidance! 😊

I hope this helps.

Take care and have a good day.

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

VikramTheGreat

HP Support 

[VikramTheGreat]

Hi @Eric_DK,

I hope this message finds you well. I wanted to follow up on the technical issue that we discussed earlier and confirm that it has been successfully resolved.
 

If you encounter any further issues or have any additional questions, please do not hesitate to reach out to us. We are here to assist you and provide any necessary support.
 

I will be archiving this case for now, however, you can respond to the same thread to continue the conversation.
 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!
 

Take care and have a great day ahead!
 

VikramTheGreat

HP Support

[Eric_DK]

Hello again Vikram,

Thank you very much for your responses.

Due to circumstances beyond my control, I have not been able to test your suggestions yet.

I'll let you know, when I have tested the suggested solutions.

Best regards,

Eric

[VikramTheGreat]

Hi @Eric_DK,

You're very welcome! No worries at all—take your time, and whenever you're ready to test, feel free to reach out if you need further assistance. I'll be here whenever you need help. Best of luck! 😊

 Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!
 

Take care and have a great day ahead!
 

VikramTheGreat

HP Support

[Eric_DK]

Hello again Vikram,

Thanks for your great advice!

Solution 2 with Firefox worked.

Now I just need to figure out how to fix random 1 inch wide color streaks near either or both edges of a page.

The streaks usually appear on black & white printouts.

Best regards,

Eric

[VikramTheGreat]

Hi @Eric_DK,

Welcome to the HP Support Community.
 

Thank you for posting your query. I will be glad to help you.

Thank you so much for your kind words! I'm really happy Solution 2 helped with your earlier issue.
 

Regarding those 1-inch wide color streaks near the edges of your pages (especially on black & white prints), let’s work through some steps together to help narrow down the cause and fix it.

1. Check and Clean the Imaging Drum

• Streaking is often related to the imaging drum or toner cartridge.
• Remove each toner cartridge and gently inspect the imaging drum (the green/blue roller underneath).
• If you see toner buildup or scratches on the drum, it may need to be replaced.

 
2. Check Toner Cartridges

• Try removing and reseating the cartridges.
• If possible, swap the toner cartridge causing the streak (even if you’re printing black & white — color toner is still engaged on this model).

3. Run a Cleaning Page

• From the printer’s control panel, navigate to:
  • Administration > Clean Page
• This will help clear any loose toner or debris from the fuser and rollers.

4. Check Transfer Belt (ETB)

• If your printer has an ETB (electrostatic transfer belt), inspect it for toner smears, scratches, or wear.
• If it’s damaged or dirty, cleaning or replacement may be needed.

5. Print Diagnostic and Configuration Pages

• Go to:
  • Information > Print Configuration Page
  • Check if the streaks appear here too — if they do, it’s likely a hardware issue (toner, drum, belt, or fuser).

I hope this helps.

Take care and have a good day.

Please click “Accepted Solution” if you feel my post solved your issue, as it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

VikramTheGreat

HP Support