Ha mialem podobny problem, trzeba odpowiednie rzeczy ustawic na karcie sieciowej/w polaczeniach, zaraz sprubuje to odnalezc.
Ok mam, ogolny temat:
http://forums-en.wow-europe.com/thread.aspx?fn=wow-tech-support-en&t=202513&p=1&tmp=1#post202513
Mi pomoglo:
# Network Card Configuration
If you continue to have these problems then you will need to adjust the configuration of your network connection:
(please check with your Network Administrator before making any changes)
To access your Network configuration settings:
# Go to Start and choose Control Panel
# If in Category view, please click on Network and Internet Connections
# Open Network Connections
# Right click on your network adapter used to connect to the internet and go to Properties
# Click on Configure and go to the Advanced tab
Different network cards have different options on this screen:
Disable any option labeled Checksum Offload (RX and TX) or Hardware Checksumming
Set the option called Connection Type, Speed and Duplex Settings or Media Type to Force 100 Full Duplex
(the exact wording of this option may vary)
Note: You may need to select Force 10 Full Duplex for an older network.
Set the Optimize for option to Throughput
Click OK
Note: This may cause your Connection to disconnect temporarily: Restarting the computer will usually resolve this.
If you are still disconnected, readjust the Connection Type settings.
powodzenia.