Make sure to grab the correct grid URL.
Main URL: https://taggrid.org:8002/
Alternate URL: https://www.taggrid.org:8002/ or https://taggrid.online:8002/
Grid URL: http://beta.taggrid.org:8002/
Open your grid manager then, click Create. Then type the grid URL into the Grid URI box and click refresh Grid URLS. Followed by Apply and OK.
Open your grid manager. Then in the “Add new grid” box, type in the grid URL. Then click apply next the to box. Then apply and ok at the bottom.