27" Late 2015 iMac - Wifi Radio Issue

Delete these files & restart...

~/Library/LaunchAgents/com.pia.pia_manager.plist

/Library/LaunchAgents/com.malwarebytes.mbam.frontend.agent.plist

/Library/LaunchDaemons/com.paloaltonetworks.gp.pangpsd.plist

/Library/LaunchDaemons/com.malwarebytes.mbam.rtprotection.daemon.plist

/Library/LaunchDaemons/com.fitbit.galileod.plist

~ tilde indicates your user library folder

Apple hid the Users' Library folders...

Method 1:

1 From the Finder, select the Go menu at top of the screen, and choose Go to Folder.

2 In the window that opens, enter ~/Library, and click Go.

Reset both NVRAM and SMC, then Reboot into Safe Mode, and try again.

If there are any add-on VPN client apps installed, remove all per the vendors’ instructions.

If Safe Mode and the resets does not clear this—and probably won’t—you’re headed for repair or replacement.

Please do the following:

It will help us get a good idea of what is causing your problem if you provide a report of your system, that way we do not have to play 20 questions with you. The report we are requesting does NOT provide any personal information and is extremely safe to use. Please navigate to www.Etrecheck.com and download the free version of EtreCheck. Once you have you downloaded the app and installed it, please run the report and save it. This report will help us get a good idea what has been installed on your system and help us be able to diagnose what may be wrong.

When you have your report, you can attach it when you reply to this message and we can then review it and help you determine what is needed to get your system running well again. 

For instructions on how to download your EtreCheck report and attach it to your reply to this message please click How to use the Add Text Feature When Post… - Apple Community It is helpful to us if you download the report to your Desktop.

What I meant about Little Snitch and MS Defender Endpoint Security Extension is that they are both 100% unnecessary and a very possible cause of your problem. I recommend locating the developers uninstall instructions for each, then uninstall. After successful uninstalls of both apps, restart in Safe Mode and then retest.

Restart again in Safe Mode, when you do please ensure ALL external wired peripherals (printers, External Hard Disks, modems, scanners, USB hubs, etc...) are disconnected. Please follow the information in Safe Mode to the LETTER!

This Mac is filled with what can be problematic stuff.

Profiles, multiple security add-ons, management add-ons, and a modified hosts file, etc.

Based on a quick look, Jamf, Defender, Malware Bytes, Protec, Little Snitch, a very old version of Paragon, PA globalprotect, a torrent client, PIA and Nord VPNs, etc. And that modified hosts file, too.

Torrents are among the better sources of malware for macOS too, as cracked apps have lately been targeting their own users with malware. I’ll assume there are no cracked apps here, but any that might happen to somehow exist here should go away. Whatever damage and data uploads have happened here have already happened.

I’d back up, erase this, install macOS, migrate over (just) files and documents (and not apps), and be a little more… economical about what gets installed and from where, and more economical with what gets modified.

Thank you for the report, your system is kind of a mess due to what you have installed on it. For example, please uninstall:

• LittleSnitch, outdated and totally irrelevant.

Microsoft Defender Endpoint Security Extension - version 101.97.94

I also suspect you have downloaded and installed some malware including adware. Please download the free version of malwarebytes and run it. Then restart in Safe Mode.

Finally, there is zero evidence you backup your computer. Operating any computer without a backup plan is a 100% guarantee of losing data, data that cannot be retrieved including photos, important financial info, etc. At the very least you should be using Time Machine ( Back up your Mac with Time Machine ) which will require an external HD such as an OWC Mercury Elite Pro. This should be your #1 priority as a 2015 computer is 8 years old and could fail at any time.

Also, please when posting reports such as an EtreCheck report, please save them to your Desktop. You put it out on the Internet somewhere, possibly some Cloud storage. That means we have to download it from that location which is slow.

I’m having the same trouble. Everything was working fine last week and I rearranged my room. Moved the 2015 iMac and now no networks appear in the WiFi? I tried resetting the PRAM and SMC but no dice? All other Apple devices see the network as normal. Any suggestions?

yakpaoro wrote:

I’m having the same trouble. Everything was working fine last week and I rearranged my room. Moved the 2015 iMac and now no networks appear in the WiFi? I tried resetting the PRAM and SMC but no dice? All other Apple devices see the network as normal. Any suggestions?

Please start your own thread, as this is quite possibly a different issue.

Post a link back here.

Post the EtreCheck data in the new thread.