[ihvike]

Põhjus - oled arvatavasti ruuteri taga. Lahendus - avada ruuteris TCP pordid 1863 ja 6891-6900.

[SKG]

File transfer:

Both incoming and outgoing TCP connections use the range of ports from 6891 to 6900. This allows up to 10 simultaneous file transfers per sender. These ports must be open on any firewall between the peers. If you open only port 6891, users will only be able to do one file transfer at a time.


Audio & video conversation:

TCP 6901 ja UDP 6901


Application and Whiteboard Sharing:

TCP 1503


Remote Assistance:

TCP 3389



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allikas: Microsoft


ps: IMO, kui tegu UPnP ruuteriga, siis ei pea neid porte avama. oleneb ruuterist.


EDIT: kasulikku veel - http://support.microsoft.com/default.aspx?scid=kb;EN-US;q278887