If you are not able to login to the customer portal in Google Chrome browser, please disable the same site cookies settings.
Please find the below steps to disable the same site cookies settings.
1. Open the Google Chrome browser and copy paste the below text in chrome address bar and hit enter key.
chrome://flags/#same-site-by-default-cookies
2. Disable the below 3 settings.
• same-site-by-default-cookies
• enable-removing-all-third-party-cookies
• cookies-without-same-site-must-be-secure
3. After disabling the settings, click on Relaunch button.
4. Browse the customer portal link and you should be able to log in.