When ports do not open when a connection is made, most often the problem is with viruses on the computer. Most of the problems of this nature arise when you make certain changes to the PC settings.
Instructions
Step 1
If you experience certain problems opening ports on your Internet connection, check your operating system's firewall and other security settings. Also, check beforehand for other programs that regulate network activity on your computer.
Step 2
Make sure that there are no viruses by checking with the appropriate utilities, also remember the last programs you installed on your computer, since many of them could display a message in the settings during installation about changes to the configuration of network equipment, or this was assumed by default. These can be various programs for setting control over the viewed content and other programs with similar functions.
Step 3
Check if this is your computer user's specific problem. Create a new account and notice if the connection port opens. It is best to create a new Internet connection at the same time, without fail specifying a username and password and terminating all programs running in the background. If the ports do not open, this may also be due to the provider's equipment.
Step 4
If you have the ability to use additional network equipment, for example, a second sound card or an additional computer, test the operation on them. If you still experience problems, contact technical support by informing the operator of the problem, and specifying additional related options specific to your computer.
Step 5
Restart the computer after disconnecting it from the local network and removing the plug from the network card connector. Wait about 10 minutes and put it back in place, then reconnect. Also check if default addresses are assigned in TCP properties if you are using this protocol.
