Topaz Photo AI download and install not completing

Win 11 reports “internet connectivity error” after several files are downloaded, and then after hanging for a moment.

Steps to reproduce issue:

  1. Step 1 - choose to download latest version of Topaz Photo AI
  2. Step 2 - open download file TopazPhotoAI-1.5.4.msi
  3. Step 3 - installer attempts to install and then hangs for a few moments before Win 11 reports an “Internet connectivity error”

Topaz Photo AI [v1.x.x] on [Windows/Mac]

Resolved. The problem was with my ethernet adapter, which was not acknowledging received packets in the upload direction. Reset adapter and the problem is now resolved, and Topaz installed correctly.