My wired network cannot access computers connected wirelessly

Very strange problem of networking:

Everything is Windows 7 and the network is defined as a working network.

My laptop (wireless) can see and access my desktop (wired), but my desktop computer, although it can see my laptop, cannot access.
If I connect the laptop cable, the Office can then access. I do not change anything, just plug in the cable.

If also connected to my netbook with unusual results. The netbook runs Windows 7 starter and is wireless
He can see the desktop and the laptop and access, but does not appear in its own computer network list in the Explorer.
It is visible in the desktop browser, but are not accessible from it. It does not appear on the Explorer of the laptop at all.
If I have the cables up to the netbook, the Office can then access it, but the netbook can then access the laptop if it is wireless.

Just to clarify - netbook on wireless - I can access the laptop (wireless or wired)
NetBook on cable (wireless or disable as well) I can still see the laptop, but cannot access it.

When I first put this network - a couple of years - all spoken at all. I think I lost it after an upgrade of windows, but don't know when because I rarely access the laptop from the desktop, usually the opposite.
Anyone got clues? Or how can I delete all networks and start again because I have a different network (same working group) on each PC name, but I can't change the names - windows seems to decide what to call them.

Hello

Thanks for the reply.

I would appreciate if you can help me with the following information.

1. what happens when you try to access wireless computers? You receive an error message/code?

2. don't you try to access folders to disable firewall/antivirus?

Tags: Windows

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