Windows network access

I have Wi-Fi router with local network 192.168.1.0/24
PC #1 - Windows Server 2008 R2 connected to wired LAN interface
PC #2 – laptop with Windows 8.1 x64 connected to Wi-Fi network of this router
I created same administrator account in both computers
So, I am able to access network share of PC \\server\c$ from my laptop and not able to access network share of my laptop (\\laptop\c$) from PC with same account credentials
Windows security log on laptop shows:

«
Log Name:      Security
Source:        Microsoft-Windows-Security-Auditing
Date:          10.07.2015 11:29:22
Event ID:      4634
Task Category: Logoff
Level:         Information
Keywords:      Audit Success
User:          N/A
Computer:      Lenovo
Description:
An account was logged off.

Subject:
      Security ID:            Laptop\Admin
      Account Name:            Thinker
      Account Domain:            Laptop
      Logon ID:            0x2502771

Logon Type:                  3

This event is generated when a logon session is destroyed. It may be positively correlated with a logon event using the Logon ID value. Logon IDs are only unique between reboots on the same computer.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-Security-Auditing" Guid="{54849625-5478-4994-A5BA-3E3B0328C30D}" />
    <EventID>4634</EventID>
    <Version>0</Version>
    <Level>0</Level>
    <Task>12545</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8020000000000000</Keywords>
    <TimeCreated SystemTime="2015-07-10T08:29:22.387636500Z" />
    <EventRecordID>103489</EventRecordID>
    <Correlation />
    <Execution ProcessID="740" ThreadID="2680" />
    <Channel>Security</Channel>
    <Computer>Lenovo</Computer>
    <Security />
  </System>
  <EventData>
    <Data Name="TargetUserSid">S-1-5-21-1473180176-1683805374-2370849755-1001</Data>
    <Data Name="TargetUserName">Thinker</Data>
    <Data Name="TargetDomainName">Lenovo</Data>
    <Data Name="TargetLogonId">0x2502771</Data>
    <Data Name="LogonType">3</Data>
  </EventData>
</Event>
»

Any ideas?
Thanx in advance