We have been made aware of connection issues affecting Amazon Kindle Fire devices specifically.
Our investigation found out that the latest Amazon OS update is seemingly blocking the connection port: 8000. This port needs to be open to reach Vainglory's server.
Our engineers are trying to find a way to resolve the matter, but we suspect that an Amazon OS fix may be needed. We are already coordinating with Amazon and have offered our assistance to help them resolve the issue.
Update: This issue is now resolved. If you are using one of these devices and having problems connecting, then please contact our Support Team.