Wifi speed slow on iMac but fast on iPad

Thanks but that didn't help much. However, connecting my iPhone hotspot to my iMac increases my speed from 3.2 Mbs to 57 Mbps. Does this make any sense. Does this indicate a software problem on the iMac?

EtreCheck version: 4.3.2 (4D034)

Report generated: 2018-07-02 12:39:02

Download EtreCheck from https://etrecheck.com

Runtime: 2:58

Performance: Excellent

Problem: Computer is too slow

Description:

WiFi connection is very slow

Major Issues:

Anything that appears on this list needs immediate attention.

Old operating system - Old operating system versions no longer receive security updates.

Minor Issues:

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

Upgradeable RAM - This machine has upgradeable RAM that would help its performance.

Clean up - There are orphan files that could be removed.

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

Vintage hardware - This machine may be considered vintage.

Insufficient permissions - EtreCheck running under a standard user. Diagnostic information may not be available.

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

Abnormal shutdown - Your machine shut down abnormally.

Hardware Information:

iMac (21.5-inch, Mid 2010) - Vintage!

iMac Model: iMac11,2

1 3.2 GHz Intel Core i3 (i3) CPU: 2-core

4 GB RAM - Upgradeable

BANK 0/DIMM0 - Empty

BANK 1/DIMM0 - Empty

BANK 0/DIMM1 - 2 GB DDR3 1333 ok

BANK 1/DIMM1 - 2 GB DDR3 1333 ok

Video Information:

ATI Radeon HD 5670 - VRAM: 512 MB

iMac 1920 x 1080

Drives:

disk0 - APPLE HDD HUA722010CLA330 1.00 TB (Mechanical)

Internal SATA 3 Gigabit Serial ATA

disk0s1 - Macintosh HD (Journaled HFS+) 1.00 TB

disk1 - WD Elements 10B8 Media 2.00 TB

External USB

disk1s1 - E******s (Journaled HFS+) 2.00 TB

disk2 - WD 2.00 TB

External FireWire

disk2s1 - A***e [Partition Map] 32 KB

disk2s3 - M*****k (Journaled HFS+) 2.00 TB

Mounted Volumes:

disk0s1 - Macintosh HD 1.00 TB (806.86 GB free)

Journaled HFS+

Mount point: /

disk1s1 - E******s 2.00 TB (1.34 TB free)

Journaled HFS+

Mount point: /Volumes/E******s

disk2s3 - M*****k 2.00 TB (253.86 GB free)

Journaled HFS+

Mount point: /Volumes/M*****k

Network:

Interface Bluetooth-Modem: Bluetooth DUN

Interface en0: Ethernet

Interface fw0: FireWire

Interface en1: Wi-Fi

802.11 a/b/g/n

One IPv4 address

2 IPv6 addresses

Interface en2: Bluetooth PAN

System Software:

OS X Yosemite 10.10.5 (14F2511)

Time since boot: About 2 days

System Load: 1.20 (1 min ago) 1.38 (5 min ago) 1.19 (15 min ago)

Security:

Unsigned Files:

Launchd: ~/Library/LaunchAgents/grower.economy.deface.resize.plist

Executable: ~/Library/Application Support/unquote.hummus/unlivable a7e62IktiVSHoXgQuydSYhC9mvirSew45thaKpsQZVJHvZr4q0HoJ/ODQjCKEmFSXoKI7LoUp2e0lEA lji0v

Launchd: /Library/LaunchDaemons/com.rogueamoeba.hermes.plist

Executable: /usr/local/hermes/bin/hermesctl update

Details: Exact match found in the whitelist - probably OK

Launchd: ~/Library/LaunchAgents/com.jdibackup.ZipCloud.notify.plist

Executable: /Applications/ZipCloud.app/Contents/Resources/Utility.app /Applications/ZipCloud.app/Contents/Resources/Utility.app --args 7 1

Launchd: ~/Library/LaunchAgents/com.jdibackup.ZipCloud.autostart.plist

Executable: /Applications/ZipCloud.app/Contents/Resources/Utility.app /Applications/ZipCloud.app/Contents/Resources/Utility.app -n --args 9 -l

Launchd: ~/Library/LaunchAgents/com.apple.FolderActions.folders.plist

Executable: /usr/bin/osascript

Launchd: ~/Library/LaunchAgents/com.apple.SafariBookmarksSyncer.plist

Executable: /Applications/Safari.app/Contents/SafariSyncClient.app/Contents/MacOS/SafariSyn cClient --sync com.apple.Safari --entitynames com.apple.bookmarks.Bookmark,com.apple.bookmarks.Folder

Details: Exact match found in the whitelist - probably OK

32-bit Applications:

42 32-bit apps

Kernel Extensions:

/System/Library/Extensions

[Loaded] Soundflower.kext (1.6.6 - SDK 10.6)

[Loaded] HermesAudio.kext (3.0.2)

Startup Items:

HP IO Path: /Library/StartupItems/HP IO

System Launch Agents:

System Launch Daemons:

Launch Daemons:

User Launch Agents:

User Login Items:

HP Scheduler Application (? - installed 2010-11-09)

(/Library/Application Support/Hewlett-Packard/Software Update/HP Scheduler.app)

Internet Plug-ins:

Default Browser: 600 (installed 2015-07-16)

Flip4Mac WMV Plugin: 3.2.0.16 (installed 2014-03-09)

OfficeLiveBrowserPlugin: 12.3.6 (installed 2013-07-13)

AdobePDFViewerNPAPI: 11.0.07 (installed 2014-08-23)

FlashPlayer-10.6: 30.0.0.113 (installed 2018-06-07)

Silverlight: 5.1.10411.0 (installed 2012-05-28)

QuickTime Plugin: 7.7.3 (installed 2017-08-13)

Flash Player: 30.0.0.113 (installed 2018-06-07)

PepperFlashPlayer: 30.0.0.113 (installed 2018-06-07)

iPhotoPhotocast: 7.0 (installed 2013-04-21)

AdobePDFViewer: 11.0.07 (installed 2014-08-23)

EPPEX Plugin: 10.0 (installed 2013-09-25)

User Internet Plug-ins:

BrowserPlus_2.9.8: 2.9.8 (installed 2013-03-04)

fbplugin_1_0_3: (installed 2010-02-26)

Google Earth Web Plug-in: 7.1 (installed 2013-10-07)

Safari Extensions:

3rd Party Preference Panes:

AppTrap (installed 2008-02-11)

BrowserPlus (installed 2013-03-04)

Flash Player (installed 2018-06-01)

Flip4Mac WMV (installed 2013-03-29)

Launchpad-Control (installed 2011-08-22)

Perian (installed 2011-07-23)

Time Machine:

Skip System Files: No

Mobile backups: No

Auto backup: Yes

Volumes being backed up:

Macintosh HD: Disk size: 1.00 TB - Disk used: 193.35 GB

E******s: Disk size: 2.00 TB - Disk used: 660.36 GB

Destinations:

M*****k [Local] (Last used)

Total size: 2.00 TB

Total number of backups: 176

Oldest backup: 2015-03-07 23:49:14

Last backup: 2018-07-02 11:52:53

Top Processes by CPU:

Top Processes by Memory:

Top Processes by Energy Use:

Virtual Memory Information:

Software Installs (past 30 days):

Clean up:

~/Library/LaunchAgents/com.adobe.ARM.***.plist

/Applications/Adobe Reader.app/Contents/MacOS/Updater/Adobe Reader Updater Helper.app/Contents/MacOS/Adobe Reader Updater Helper

Executable not found

~/Library/LaunchAgents/com.apple.MobileMeSyncClientAgent.plist

/System/Library/PrivateFrameworks/DotMacSyncManager.framework/Resources/mobileme syncclient

Executable not found

Diagnostics Information (past 7 days):

2018-07-02 10:11:23 Safari.app Crash

/Applications/Safari.app

2018-06-30 10:14:28 Last Shutdown Cause: 0 - Power loss

Directory /Library/Logs/DiagnosticReports is not accessible.

Here's the report. Thanks in advance.

Run as an administrator account to see more information.

End of report

Thanks Eric, but it made no difference. Obviously the problem must be caused by a software issue because the speed increases when I tether the iMac to my phone. I even turned off the data function on the phone to make sure that it was getting the data from my router.

Any other suggestions?

Thanks again

Hi Eric, I tried both Safe mode and using my Admin account and the speed results wee the same, between 2 and 3Mbs.

This is a real mystery. I have thought about upgrading to Help them Sierra, however my computer only has 4 GB of ram and I'm afraid that upgrading will just slow down the computer.

Thanks for all your help.

That was my original thought also except my iPod sitting right next to the computer shows download speeds of 7.37 MPs on my old iPad and 15.4 on my iPhone with the cellular data turned off.

I thought about connecting an Ethernet cable but I would have to disconnect the iMac, move it to the living room, run the test and then return it. Even if the speeds were the same or better than just tethering the computer to the phone to download a file, I'm not running a cable to the bedroom, so what's the point?

Thanks for for the idea, but the problem still exists.

Thanks for the suggestion, but I'm not going to buy an Ethernet cable 18 ft. long Just for a test. The direct distance between the router and the computer is about 10 or 12 ft. My entire apartment is only 1650 sq. ft. And I can pick up the wifi signal on my iPad out in the street. This issue has only been a problem for about six to ten months and the speed was easily restored after a reboot. Now a reboot makes no difference. I might reload the operating system because something might have gotten corrupted from Time Machine.

I can't understand why the wifi speed is so much faster connected to my iPhone than through my router? Or why the speed from the router to either my iPad or iPhone is so much higher when sitting right next to the computer?

the only time the slow speed is a problem is when downloading a large file. Just tethering it to the phone when I need to download a large file might be the easiest workaroun.

Thanks, but I would never run the Internet on that computer via Ethernet so it really wouldn't matter. The fact that the same receiver on the iMac gets two completely different speeds is the issue based on receiving the data through the iPhone or directly from the modem. I have rebooted the modem which also made no difference.

Any ny other ideas would be gratefully appreciated.

Thanks for your reply. Wifi diagnosis shows that everything is normal. If I turn off Bluetooth I can't connect my keyboard. My router is generating a 5 GHz signal.