Event Viewer - Error ID: 1002&1014 DHCP&DNS Servers

Hello everyone. Thank you opened this topic. I got a problems thats isn't criticals, but sometimes my internet is dropping and that's make me cry. First error(DHCP) happening when Windows starting, second usually by 20min after start.
General:

The IP address lease 192.168.1.2 for the Network Card with network address 0x50465DA0F22B has been denied by the DHCP server 192.168.1.1 (The DHCP Server sent a DHCPNACK message).

Details:

- System

- Provider

[ Name] Microsoft-Windows-Dhcp-Client
[ Guid] {15A7A4F8-0072-4EAB-ABAD-F98A4D666AED}

EventID 1002

Version 0

Level 2

Task 3

Opcode 76

Keywords 0x4000000000000000

- TimeCreated

[ SystemTime] 2015-04-08T20:20:45.484017500Z

EventRecordID 236

Correlation

- Execution

[ ProcessID] 848
[ ThreadID] 1052

Channel Microsoft-Windows-Dhcp-Client/Admin

Computer McDuck-PC

- Security

[ UserID] S-1-5-19


- EventData

Address1 33663168
HWLength 6
HWAddress 50465DA0F22B
Address2 16885952

Second trouble
General:

Name resolution for the name invalid.cab timed out after none of the configured DNS servers responded.

Details:

- System

- Provider

[ Name] Microsoft-Windows-DNS-Client
[ Guid] {1C95126E-7EEA-49A9-A3FE-A378B03DDB4D}

EventID 1014

Version 0

Level 3

Task 0

Opcode 0

Keywords 0x4000000000000000

- TimeCreated

[ SystemTime] 2015-04-08T20:28:06.725129900Z

EventRecordID 292373

Correlation

- Execution

[ ProcessID] 940
[ ThreadID] 6004

Channel System

Computer McDuck-PC

- Security

[ UserID] S-1-5-20


- EventData

QueryName invalid.cab
AddressLength 16
Address 02000035C3F576050000000000000000

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