Rozwiazywanie problemów z laczeniem sie z siecia

Troubleshooting Network Connectivity Issues

Please follow the steps below to diagnose network connectivity issues within Steam:

1. Router
   Before trying anything else, try bypassing your router by connecting your computer directly to your modem.
   
   If the issue disappears after bypassing your router, please refer to the Using a Router with Steam topic for instructions on configuring your router.
   
   Note: running your router in DMZ mode is not supported by Steam and may result in connection issues.
   
   Also, wireless connections are not recommended for online gaming.
   
   To ensure reliability, make sure you are using a wired connection to the internet.
2. Firewall
   See the Using a Firewall with Steam topic for instructions to properly configure your firewall
   for Steam.
   
   Note: If you are installing Steam for the first time or Steam has recently been updated, a
   firewall may be preventing Steam from connecting to the Steam Network - even if Steam
   worked correctly before the update was applied.
3. Launch Steam using TCP
   Start Steam with the -tcp launch option. Please see the Setting Steam Launch Options topic for instructions.
4. Background Applications
   Review the Programs Which Interfere with Steam and reconfigure, disable or uninstall any
   programs which may be preventing Steam and Valve games from connecting.
5. Viruses, Trojans, Adware and Spyware
   If issues persist, scan your computer for Spyware, Adware, and Viruses Interfering with Steam
6. Power cycle your network hardware
   If you continue to experience issues, unplug your modem and router, wait a few seconds, then plug them back in. Sometimes, these devices simply need to be refreshed.

Required Ports for Steam

Your network must be configured to allow Steam access to the following ports:

Steam Client

• UDP 27000 to 27020 inclusive
• TCP 27020 to 27050 inclusive

Dedicated or Listen Servers

• TCP 27015 (SRCDS Rcon port)

Known issues with Internet Service Providers (ISP's)

There are several ISP's which interfere with Steam traffic:

• Dutch Telecom (Steam traffic blocked)
• ISPFree (Steam traffic blocked)
• TalkTalk (bandwidth throttling reduces download speeds)
• Bluewin (Firewall blocks Steam from provider side - must be disabled through provider's service portal)
• 012.net (Reported to have connection trouble with downloading game updates and connecting to game servers)

There are connection issues with certain ISPs that can be avoided depending on what type of cable/DSL modem and router you have.

Please follow the guide for Client dropped by server and Warning: Connection Problem issues if this is the error you are experiencing.