There are usually 4-5 available Quote Servers per Order Server. In case of a connection issue on either client end or DAS end, the frontend will automatically try to switch to another Quote Server. To ensure automatic Quote Server switch, the client should check “Auto Balance Quote Server” instead of specifying a particular Quote Server IP in Network Environment Config showing above. Otherwise, the client has to do so manually: go to File and select Switch Quote Server, then click on one of the available servers. The client may also switch the Quote Server manually if he feels he is receiving slow quotes during certain spiked market, although the Order Server can do auto balance.