Thus spake "schoie88":
> A while ago I noticed I could connect to server but got no feedback, 
> e.g. couldn't see anyone [including me] in rooms, even though the 
> server status showed them to be busy. My opponents could see me in 
> there. Quite clearly the server couldn't 'upload' to me. Other 
> connections are fine. A few plyers on the VASL forum had the same 
> problem.
> 
> After several tests I now realise this is because the ISP blocks all 
> connection to P2P sites at peak times. The VASSAL server comes back 
> when P"P software is unblocked. More and more ISP's are blocking this 
> traffic at peak times. So more and more players will be kept out of 
> VASSAL in the evenings. Is VASSAL server seen as P2P by the ISP's? Can 
> this be altered?
> 
> cheers
> David

If you're showing up for others on the server, then clearly you have no
problem getting packets through to the server. Your problem is receiving
packets coming back to you from the server. 

VASSAL uses port 5050, last I checked. Are you sure the problem is that
your ISP is blocking port 5050? (I'm dubious about this, since Yahoo
Messenger also uses 5050; I have a hard time believing that they'd block
Yahoo Messenger.) Another explanation is that your firewall is blocking
those packets, but that's also weird since (I think) the incoming packets
from the VASSAL server should be interpreted by your firewall as related
to a connection you initiated, and so let in.

Hmm. It might be worth calling your ISP about to get more information.
If it turns out that they are blocking 5050, what I would do, in order
of severity, is 1) ask them not to block that port, 2) point out that
it prevents you from getting what you pay for, 3) threaten to switch to
another ISP (even if you don't really mean it), and 4) switch to another
ISP and write them a letter explaining why.

-- 
J.

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