Windows 7: 2 PC connected over lan with router

Hello,

I have 2 pc's-

Main (HOME) - windows 7 64bit professional
Secondary (HTPC) - windows 7 32bit enterprise



both connected to a TP-link TL-WR1043ND with CAT6 cable.

both getting Internet signal with no problem.

all I want to do is to share the partitions between both pc's, it seemed a simple task but its driving me crazy.

the main PC (HOME) doesnet see the HTPC at all at the 'Netwrok" folder
the HTPC see the HOME PC but cant access it! getting 0x70080035 error.

Im writing after digging all over the web, this is what I did so far without sucsses:
-enabled NETBIOS over TCP/IP at the ipv4 wims tab.
-restored router factory settings.
-gave permanent IP to each PC (pool in the router config).
- with and without "HOMEGROUP", same password and all.
-Network discovery on.
-password protected sharing off.
-"Workgroup" (windows 7 default) on both systems.
- even tried something in Control Panel\User Accounts and Family Safety\Credential Manager but I didn't know what to do there exactly, What do I need to edit there?
- I see allot "did you ping it", how do I do that?

BTW before the HOME PC was connected with a wifi dongle and everything was fine.

I tried searching before posting here.. Please help me!