The IP block is used to restrict access to the device. When you fail to authenticate youself by entering the wrong credentials too many times, your IP address will be added to the list of blocked IP addresses. I see that one IP address was blocked, but you have deleted the entry. Is that your IP address? How do you delete those entries?
If your IP address is added to the list of blocked IP addresses even though you enter the correct credentials (and you are able to login), please, try to reinstall firmware via bootloader as I have mentioned before.