Several of us are having the same problem. See here:
http://community.ebay.ca/t5/Site-Issues/Can-t-get-past-the-quot-Experiencing-Technical-Difficulties-quot/m-p/246456#U246456
Same problem here. I've been trying to log in and change my password for
over a week. I positive I'm using the right login info. I've tried
multiple computers. It's frustrating because you can't even contact eBay
without being logged in. I really don...