fix network protocol error

Question

Level 1

9 points

fix network protocol error

Frequently i get message that pages cannot load because of "network protocol error." I'd appreciate advice on how to fix that. Thanks

Stan

MacBook Pro 15", macOS 10.14

Posted on Feb 26, 2019 3:43 PM

Reply

Answer 1

MrHoffman

Level 10

146,443 points

Feb 26, 2019 6:02 PM in response to Stan704

Please download and invoke and post the output report of EtreCheck here, and when you open up the reply here, then use the (highlighted) button that looks like a printed page to get enough room to paste the report here. EtreCheck will generate a configuration report containing the hardware and software configuration, and from that we might be able to find a cause.

Common causes of errors here can be adblockers, adware, malware, anti-virus and anti-malware and related packages, and (unsurprisingly) there can be network errors.

Reply

Answer 2

MrHoffman

Level 10

146,443 points

Feb 27, 2019 2:40 PM in response to Stan704

Anti-virus and anti-malware work by intercepting and decrypting all network connections and then re-encrypting the connections, and the tools don't always get all of that right. Other tools can cause problems, including system cleaners and performance optimizers and related, as well as add-on network-monitoring and firewall tools.

What happened when trying to paste the EtreCheck configuration report into the forums? If you didn't get to a text-input window, here's some more detail on getting to that. The printed-page box is how Apple is doing a sort-of file attachment, and that input field is usually big enough to hold the EtreCheck report.

Reply

Answer 3

Stan704 Author

Level 1

9 points

Feb 27, 2019 2:08 PM in response to MrHoffman

I was not able to copy report as per instructions. Report said major issue was several anti-virus apps running so I removed Malwarebytes--that is only one I have besides Avira. Also identified several minor issues. I will see if removing Malwarebytes solved the problem. If not I will get rescan and maybe buy pro version. Report is too long to post here so I include only a little.

EtreCheck version: 5.1 (5020)

Report generated: 2019-02-27 12:56:13

Download EtreCheck from https://etrecheck.com

Runtime: 2:30

Performance: Excellent

Sandbox: Enabled

Full drive access: Disabled

Problem: Other problem

Description:

Sometimes pages will not load and I get the message Network Protocol Error contact your administrator. I dont have an administrator, dont know what to do. Thank you.

Major Issues:

Anything that appears on this list needs immediate attention.

More than one antivirus app - This machine has multiple antivirus apps installed.

Minor Issues:

These issues do not need immediate attention but they may indicate future problems.

Unsigned files - There are unsigned software files installed. They appear to be legitimate but should be reviewed.

System modifications - There are a large number of system modifications running in the background.

32-bit Apps - This machine has 32-bits apps that may have problems in the future.

Limited drive access - More information may be available with Full Drive Access.

Reply

fix network protocol error

Similar questions