@SparkySwykowski 

Recommended Troubleshooting

Troubleshooting Slow Internet Speed with Deco Devices

Troubleshooting Slow Speed on Main Deco

  @SparkySwykowski 

I recommend rolling back your firmware if none of the trouble shooting steps helped.

Before rolling back your firmware to an earlier version, please open a support ticket and upload your log file following the instructions provided in the link below. This step is essential to ensure that support and senior engineers can identify any bugs in the current firmware. Thank you for your cooperation.

First submit a support ticket and upload your logfile using the infomation in the following post https://community.tp-link.com/us/home/forum/topic/694474

Once your ticket is open and your logfile has been uploaded, please follow the steps below:

1. Visit https://www.tp-link.com/us/support

2. In the search bar, enter the model number of your Deco, for example, Deco XE75 Pro.

3. On the next page, locate your Deco model from the provided list and click on the support link associated with your model number.

4. Select the hardware version of your Deco from the list. If you are unsure of your version number, you can find it on the bottom of the device.

5. Next, click on the firmware option.

6. Identify the firmware version you are currently using in the Deco app and download the version prior to the one you are currently using.

7. Once the file is downloaded, extract it to your desktop for easy access.

8. To perform the update, please access the Deco web interface by entering "tplinkdeco.net" in your browser. Then navigate to Advanced > System > Firmware Update, click on 'Browse,' select the firmware BIN file, and click on 'Upgrade.'

If you continue to encounter issues after upgrading to a previous firmware version, please repeat all the steps outlined above. However, this time, revert to an even earlier firmware version. Additionally, ensure that you open a new support ticket regarding the previous version you just installed before attempting to install an older version.

  @SparkySwykowski 

Hi, did you set Deco XE75 Pro into "WiFi Router" or "Access Point" mode under Deco APP>More>Advanced>Operation Mode?

"My network adapters operate at 2.5 GHz, and my computer is brand new with a Core Ultra 9 285K processor and 128 GB of RAM."

--Do you mean the Ethernet adapter of the computer is up to 2.5 Gigabit?

Or is the wireless network adapter connected to the 2.4GHz?(Can I have the model number of the network adapter?)

"I was baffled since I have 1200 Mbps download and 300 Mbps upload speeds."

-Is it the total network bandwidth provided by the internet service provider? Or the speed on the main desktop?

How about other mobile devices? Do they have a smooth video streaming experience?

By the way, do you use a specific software/APP for video playback on the main desktop?

Wait for your reply.

Best regards.