Last night, I noticed a firmware update was available for my Deco X60 system via the Deco app. After successfully installing the update, my internet speed dropped drastically from the usual 300 Mbps to just 3 Mbps, such connection speed is almost unusable.

I have confirmed that the issue is not with my internet connection, as I can still achieve 300 Mbps using a direct Ethernet connection.

I’ve tried several troubleshooting steps, including:

• Rebooting the Deco units.
• Power cycling (disconnecting and reconnecting power cables).
• Checking and reconnecting all Ethernet cables.

Unfortunately, none of these steps resolved the issue. It’s clear that this problem was caused by the recent firmware update.

From other forum threads, it seems a factory reset might resolve this, but that would be extremely inconvenient and disruptive.

I strongly urge TP-Link to thoroughly test firmware updates before releasing them to users. This situation has caused unnecessary frustration and inconvenience. Please advise if there’s a less disruptive fix for this issue.