After sign in the eBay homepage opens and promptly freezes up.
This page?
https://www.ebay.com/
I have seen some users have problems with that page from time to time. At one point long ago Internet Explorer users could not load the page for an extended period. Some users in the UK were subjected to a pop-up ad apparently served by eBay that would not go away and made the page unusable for a while.
Bookmarking a different page can avoid that problem -- though that may not be obvious to a random user that tries to go to ebay.com and gets an error page instead. But I have no idea how many users are encountering that.
The problem may be with eBay, or with your browser, browser settings, or your cookies or cache, or the problem may be a network issue somewhere between your computer and eBay -- or a combination of several different things.
With a mobile browser, there can be issues of a mobile version of a page being redirected to a classic version or a desktop version, and back to a mobile version resulting in a redirection loop that can time out with an error. Some browsers can be vulnerable to a browser exploit that can cause redirections to another page (which may or may not load).
If the same link works in a private or incognito browser window, that is often a sign of an issue involving your cache, cookies or browser profile. If the same link works in another browser, that might point to an issue with the original browser or browser version.
