What you need to do is disconnect from the modem and try reconnecting about a minute later. If disconnecting and reconnecting the modem doesn't resolve the issue, you will need to contact your ISP and request a new IP address.
Also, you need to make sure that you are not using a VPN to mask the IP address
(for Browsers issue) Maybe you will need to update your browser to Firefox or Internet Explorer. Chrome and Safari have been known to cause issues with updated information.
If the issue persists:
Unfortunately, we don't have the account access available to research this particular issue for you, so you will need to contact PayPal Customer Service for better assistance. The PayPal Customer Service team is specially trained to address this type of account inquiry.
Please let them know the following information:
IP address (merchants can find their IP address by visiting www.whatismyip.com) Reference number received in the error message Account email address