Magento 2: User cant logged in into to account page, no error showing!

Question

I have Migrated Magento 2 website from subdomain to root. after migration user cant logged into the account but admin is working fine. if user clear the cache and try to login , login works fine but when the cookies expire it wont work. Everything look perfect but dont know what can be the issue.

Answer 1

I got the solution for it, i installed the php chat plugin on the server and embed into magento 2 website. the issue was coming from the cookies that both of them was generated on the same url. when you look at the PHPSSID into the inspect element , it will show duplicate PHPSSID and one of them was conflicted with origenal one. Solution - i have created the subdomian and copy the chat code into the subdomain. that completely solve my problem.

Answer 2

It must be your cookie domain issue.

Check at core_config_data database table

run the sql query

select * from core_config_data where path like '%cookie%';

to check the setting.

Cookie domain value should be domain.

Answer 3

After the Magento upgrade, if your Magento project faces an error on the user login page, just go to the back-end of Magento(admin)>customers>all customers>(your user). Select the user and make changes from pending to approved Go on..

Answer 4

check var/session/ folder and if the session is not there then check app/etc/env.php for session storage.

Answer 5

It's very late but might be helpful for someone else. I have created this workaround to avoid cookies conflict in subdomain:

Override these 2 settings in your php.ini file:

session.cookie_domain = "subdomain.site.com"
session.name = "subdomain_PHPSESSID"

Changes the PHP session cookie name from PHPSESSID to subdomain_PHPSESSID and also sets the cookie_domain to subdomain.site.com. After this, customer login will work fine even without clearing the browser cookies.