Instructions for enabling JavaSript can be found
by some Internet Security programs.
Again the bidding client will tell you if this is the case.
The bidding client will tell you if it is being blocked by a firewall.
The Windows firewall and most home firewalls do not block this traffic.
Some routers can contain a firewall that can block this traffic.
Such restrictive firewalls are often found in secure offices like banks etc.
Usually the easiest solution is to avoid the firewall altogether.
You might try bidding on your smart phone or connecting using mobile broadband
or by using a mobile phone as a hotspot.
If you can change the firewall, the settings required are.
The program uses WebSockets on TCP port 8443 to communicate to the auction server.
The auction server is at IP address 188.8.131.52.
It is normally possible to allow traffic on port 8443 to just the
auction server and so not open the port up to anyone else.
If you have trouble running the Java version of the bidding client,
then the recommended thing to do is simply to use the new (HTML5) version.
Information on installing Java can be found
Java may be installed but not enabled, information on enabling Java can be found
Information on running Java on Windows 10 can be found
If Java is installed and running and the Java bidding client just shows "Connecting Connecting"
then it is being blocked by a firewall and you should use the other version of the bidding client.
The auction webcast program runs well over Dialup, ADSL, Cable, GPRS and mobile broadband,
however people using the Internet via satellite may experience unworkable delays, dropouts
or simply not be able to connect at all.
Unfortunately the transmission delays on some satellite Internet systems can make live bidding impractical.