[Czarcasm]

Tried it with my phones hotspot and it works, so it seems the home network is the problem. Don't know if it's the router, as we got a new one recently, or if it's Comcast being Comcast, as I've had times where my internet has gone from 35 down to 5 down.

Edit: Nevermind, it seems I just got lucky. Doesn't work with the phone either.
Edit 2: Tried Uninstalling and Reinstalling Plugin. Doesn't work either.
Edit 3: Tried Get Story URLs from web page, got actual error message:

calibre, version 2.20.0
ERROR: Unhandled exception: <b>IncompleteRead</b>:IncompleteRead(3623 bytes read, 819 more expected)

calibre 2.20 [64bit] isfrozen: True is64bit: True
Windows-7-6.1.7601-SP1 Windows ('64bit', 'WindowsPE')
('Windows', '7', '6.1.7601')
Python 2.7.9
Windows: ('7', '6.1.7601', 'SP1', 'Multiprocessor Free')
Successfully initialized third party plugins: Favourites Menu && FanFictionDownLoader && Reading List && Search The Internet && EpubSplit
Traceback (most recent call last):
File "calibre_plugins.fanfictiondownloader_plugin.ffdl_ plugin", line 450, in get_urls_from_page_menu
File "calibre_plugins.fanfictiondownloader_plugin.ffdl_ plugin", line 466, in get_urls_from_page
File "calibre_plugins.fanfictiondownloader_plugin.fanfi cdownloader.geturls", line 63, in get_urls_from_page
File "calibre_plugins.fanfictiondownloader_plugin.fanfi cdownloader.adapters.base_adapter", line 338, in _fetchUrl
IncompleteRead: IncompleteRead(3623 bytes read, 819 more expected)