Windows 7: Multiplayer problem? (Win7 <-> XP)

Hello there, recently I installed a Windows 7 on my notebook(Toshiba a210), and everything works fine.



I have internet access trough router D-link 542, my notebook is connected by WiFi and my PC is connected by cable. I have internet on both computers and pings between computers looks fine. Only I cannot see Windows 7 on Xp, but I saw many solutions here.

And, my problem is:
I host game(LAN) on XP, and trying to connect it on Windows 7. It finds server with no problem, but when I'm trying to join it takes Loooong time and then Disconnect me Don't know what's wrong. I unblocked game on both computers but problem still shows. I also switched off firewall on Windows 7 and doesn't work.

Tried to host game on Windows 7 but sadly XP doesn't see it. Only on XP hosting works and I can see on my laptop.

Any Ideas?
Please help someone, I don't wanna back to Vista

You can access shared folders from Seven machine and reverse?

I have access to shared folders on Windows 7. But my XP doesn't see Windows 7(so no access...). I think it's 'normal' because with Vista i had the same problem and multiplayer works fine.

Do you have same workgroup?

I checked this, in my Windows 7 workgroup's name is just 'WORKGROUP', and in my xp it's called 'MSHOME'. I try to rename it and check it now.

--edit--
Changed name of workgroup, now in both machines it is 'MSHOME' and sadly problem with multiplayer still is

You can see Seven machine from xp machine now?
Share a folder on Seven machine!

Ok I can see now Seven from my Xp, trying to open but there is login and password.

--edit--
Ok I got it, now I have access to sharing folders in both ways

And game still doesn't work?
Try to play another game multiplayer and see if works!