Troubleshooting network issues

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You may be experiencing network issues if you're stuck on Bisq's initial loading screen for a while. Often this results in a screen mentioning outdated Tor files and other Tor settings. This could occur for a number of reasons.

Weak internet connection

Bisq generally needs a strong, fast connection to work properly. Tethering on mobile connections can work but is known to cause issues.

Windows antivirus software

Antivirus software is known to cause connection issues. Try turning it off to see if it helps Bisq to connect, and if it does, consider switching antivirus software or running Bisq on another operating system on which you don't need to run antivirus.

Being temporarily banned by the Tor network

Trying to open Bisq too many times in a short timeframe can result in failing to connect to the Tor network. Simple wait 30-60 minutes and then try opening Bisq again.

Tor censorship

In certain situations, Bisq may fail to start because your ISP or network provider is actively blocking Tor.

Tor is tries to fight such obstacles by providing bridges. Bridges help you connect to the Tor network through a less well-known node. If you know someone who runs a bridge, you can ask to use their bridge, or you can go to https://bridges.torproject.org/bridges to pick a bridge listed by the Tor Project.

If you're in China, this method using SStap has worked to get around the Great Firewall.

Tor bridges that don't work

Some network administrators try really hard to block all Tor activity on their network (universities are infamous for this) and will even sometimes block specific types of SSL traffic and handshakes.

In these scenarios, consider using a VPN and then running Bisq from within the VPN tunnel.

Altcoin nodes running on the same computer

Some forks of the Bitcoin repository (e.g., Litecoin, Dogecoin, etc) are known to cause issues with Bisq starting up. Bisq can sometimes recognize altcoin nodes as Bitcoin nodes, causing Bisq to try connecting to them and then failing when it finds no Bitcoin blocks.

To solve this, switch altcoin nodes off, turn Bisq on and let it load completely. Then, turn the altcoin nodes back on.