Kraken Exchange Is Back Online After Troublesome System Upgrade ByMarc HochsteinPRO INVESTOR Updated: 05 September 2021 DisclosureWe sometimes use affiliate links in our content, when clicking on those we might receive a commission ā at no extra cost to you. By using this website you agree to our terms and conditions and privacy policy. The cryptocurrency exchange has resumed services after a scheduled maintenance that was supposed to take two hours but instead took two days.