The following comes from Wyoming.com web page under the heading of Acceptable user policy the issue is discussed further down the web page If I were you I would call and ask if they have started blocking or shaping P2P apps. Usually when someone looses the ability to connect suddenly it is the fact that there ISP has started blocking or shaping P2P apps.
1. Wyoming.com is a commercial organization dedicated to improving business, educational, and individual opportunities via the Internet for residents of Wyoming. Accordingly, Wyoming.com's objectives are:
a. To provide Internet access to all businesses, educational users, and individuals in Wyoming.
b. To provide data transport between Wyoming users and the rest of the Internet.
c. To allow commercial, educational, and individual users data transport among themselves.
d. To expand the data communication options within Wyoming.
Much of the content available on Wyoming.com's service is owned by others. This content is protected by copyright, trademark and other intellectual property laws. Any content that you upload or download while using Wyoming.com must be authorized.
Any content that you upload or download while using Wyoming.com must be authorized. This means you must have the legal right to upload or download the content. Making unauthorized copies of any content found on Wyoming.com can lead to the termination of your Wyoming.com account. This conduct may also subject you to further legal action. Additionally, the unauthorized submission of copyrighted materials or other proprietary content constitutes a breach of Wyoming.com's Acceptable Use Policy (AUP). This type of breach could subject the uploader to criminal prosecution as well as personal liability for damages in a civil suit. Owners of the protected material may take criminal or civil action against you. In that event, you agree to hold harmless Wyoming.com and its subsidiaries, affiliates, related companies, employees, officers, directors and agents.
http://www.wyoming.com/aup.asp