Why Does Mac Mail Download So Slow

I was helping my friend again with his Mac he complained his internet speed is not as advertised. I went ahead and tested my internet speed via Ethernet and I resulted 250 Mbps from fast.com When testing his Apple iMac Pro I only resulted in 50 Mbps via Ethernet. I was baffled, I went ahead changed/checked the following:

Why Does Mac Mail Download So Slow Version

  • Changed the MTU. No improvement
  • Manually set IP. No improvement
  • Changed Ethernet cable to a fancy CAT-7 cable. No improvement
  • Checked to see if there was any malware or viruses. None.
  • Nothing was downloading.
  • Checked if there was any issue with the writing speed on the SSD. Writing speed was good.

The breakthrough was when I decided to ping to google.com on my Windows laptop. What I realized was that I was getting IPv6 from google.com instead of IPv4.

So I decided to go back into the Ethernet settings and enable IPV6 since it was not enabled

Steps to enable IPv6:

  1. Apple menu
  2. System Preferences
  3. Network
  4. Choose your connection type. For me it was Ethernet
  5. Advanced Button
  6. Select the TCP/IP
  7. Change the Configure IPv6 drop-down box from Off to Automatically.
Slow

May 03, 2019 The manual checkbox is still ticked, but Apple Mail still goes ahead and auto checks mail every 10 minutes or so and dings to distract me. I need my Mail app open so I can refer to information in emails – but when I’m working I don’t want to be distracted by new messages coming in.

After enabling IPV6, I speed test the iMac and to my surprise it was finally getting 200+ Mbps. I decided to turn off IPv4 and use IPv6 alone, but unfortunately that did not work. So I left IPv4 on. Most likely when he configured his network, he accidentally enabled IPv6. At the same time I’m pretty baffled on why IPv4 is slower than IPv6.Almost 4x as slow. Maybe he configured his network wrong and so the IPv4 takes a longer route to respond? Or maybe IPv6 once enabled has a higher priority than IPv4? I decided to leave it as is since he was happy the internet was finally up to its advertised speed. Hopefully, this post becomes helpful for someone with a similar issue.

Windows 10 is much similar to operating systems that are used in smartphones. You don’t need to install updates manually, it automatically synchronizes your data to other devices, no need to worry about installing newer drivers. But with great features comes great bandwidth usage. Windows 10 constantly needs to keep up-to-date through frequent Windows Update patches. Also, the applications use a great chunk of bandwidth.

How to Fix Slow Download/Upload Speed on Windows 10:

I have mentioned the usual culprits behind the Internet slowdown. Perform these steps until your problem gets resolved. Also run a Speedtest each time you perform a step.

[box type=”info” ]The Internet Guru once said, “Restarting the WiFi Router fixes 99% of your Internet issues”.[/box]

1. Turn off Windows Update Delivery

Windows 10 turns your PC into a file sharing server. When it is idle, it automatically starts sending Windows updates files to people around you through P2P File sharing like uTorrent. So disable Windows Update Delivery over Internet.

Why Does Mac Mail Download So Slow Internet Explorer

2. Install proper WiFi Adapter Driver(s)

Although Windows 10 automatically installs the suitable driver for your WiFi adapter. But sometimes these drivers can’t utilize the full potential of your hardware. So, download appropriate drivers directly the hardware manufacturer’s website for better WiFi reception.

3. Turn off Windows Updates

Temporarily turn off Windows Updates as might be downloading necessary files in the background.

4. Uninstall Optimization Software

You might have accidentally installed malicious software that promises you to Boost Ping, WiFi or optimize your Internet. They also use names like Windows Tweaks/Cleaners utilities. It is better to get rid of them.

Mac

There is a good trusted program for this purpose, its called Piriform CCLeaner. It removes trash, temporary files and browser history so they don’t eat up your hard drive space.

5. Check Background Applications

It is the most common reason for Internet slowdown. Exit/close unnecessary programs from your task bar as they are usually downloading something from Internet.

Why

These programs include:

  • Steam (gaming client)
  • Nvidia GeForce Experience (Video card driver application)
  • uTorrent, Vuze (P2p File sharing)
  • Anti-virus update (Security software)
  • Adobe Reader begging for update.
  • EA Origin (gaming client)
  • Cloud sharing apps like Dropbox, Google Drive (file backup software)

6. Disable Firewalls

Why Mail Does Not Work

Check if Windows Firewall or any 3rd party firewall is blocking or slowing down your internet connection. You can do so by disabling them temporarily.

Why Is Mail So Slow

in qld Australia we recently got put onto NBN broadband which covers all of aust. there have been innumerable problems with this new Wi-Fi system also the over the top cost of $50mill. but since we’ve been on it we had problems with slow downloading web sites So I don’t know what the solution is. Every time I ring up Telstra I get some person in india or Malaysia trying to helpbut to no avail. I’d love to be able to go back to windows 7 but I need a pass key