# Fails to bootstrap ``` This could have several reasons. 1) It could be a conflict with installed firewall/anti-virus software. Try to disable them temporarily. 2) Maybe your ISP forces you to use a proxy. You can configure Tor to use a proxy then. 3) Maybe your ISP is blocking Tor altogether. Try bridges ( https://www.torproject.org/docs/bridges ), and, if that does not help either, the Obfsproxy bundle ( https://www.torproject.org/projects/obfsproxy.html.en ) Good luck! ```