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SumUp account connection fails or hangs during setup

Connecting a SumUp account to WooCommerce hangs or shows a website not available error.

Tier I · Proven The best-established problems.

8 public reports · first reported 28 August 2025 · last reported 26 May 2026

1 business: $19 · CSV download · All sales final

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What's going wrong

Site owners installing the SumUp WooCommerce plugin often cannot link their SumUp merchant account. The Connect Account button opens a page that hangs, or shows a website not available or page not found error, and the plugin then reports the account as not connected even though SumUp shows it linked. Some owners see PHP warnings in their logs and give up, switching to another gateway. The pattern spans many hosts and plugin versions. A tested connection checker and guided reconnect service would help merchants and agencies who depend on SumUp card readers and online checkout.

AI-assisted: written with the help of AI from the reports.

Products affected

SumUp Payment Gateway For WooCommerce.

Related problems

Who has this problem

1 business found.

Unlock them at the top of this page — $19.

All sales are final — no refunds.

Each business's name, the address it published, and the page it was published on. Paid through Stripe; you get a private page to bookmark, with a CSV download.