Help! Locked out!

I recently had our client’s webhost put an SSL on their website, and now I’m locked out of the admin.

The message I get is as follows:

ERROR: We’re sorry, but this IP range has been blocked due to too many recent failed login attempts.

I’m the only admin for this site. I’ve never had this happen before and I use Login Lockdown on many of our websites.

Is there a solution for this?
Thank you!