Can you open up CMD or Command Prompt and type these commands in.
tracert 8.8.8.8
ipconfig
Copy and paste the results here.
8.8.8.8
Tracing route to google-public-dns-a.google.com [8.8.8.8]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms dlinkrouter [192.168.0.1]
2 1 ms <1 ms 1 ms 10.255.255.10
3 1 ms 1 ms 1 ms coi-to-nat.rtr.student.pw.edu.pl [194.29.137.57]
4 1 ms 1 ms <1 ms 194.29.132.164
5 1 ms <1 ms <1 ms pw-r1-ge2-0-8-501.warman.nask.pl [148.81.253.69]
6 1 ms 1 ms 1 ms pw-gw-z-as1887.warman.nask.pl [195.187.255.52]
7 1 ms 1 ms 1 ms 195.187.255.201
8 2 ms 1 ms 1 ms google.thinx.pl [212.91.0.250]
9 1 ms 1 ms 1 ms 108.170.250.209
10 1 ms 1 ms 1 ms 108.170.233.121
11 1 ms 1 ms 1 ms google-public-dns-a.google.com [8.8.8.8]
Trace complete.
ipconfig
Windows IP Configuration
Ethernet adapter Ethernet:
Connection-specific DNS Suffix . : akademik.pw.edu.pl
Link-local IPv6 Address . . . . . : fe80::f5d8:6452:eadf:8ee4%18
IPv4 Address. . . . . . . . . . . : 192.168.0.100
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.0.1
Wireless LAN adapter Wi-Fi:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : akademik.pw.edu.pl
Wireless LAN adapter Local Area Connection* 9:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Ethernet adapter Bluetooth Network Connection:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Tunnel adapter Teredo Tunneling Pseudo-Interface:
Connection-specific DNS Suffix . :
IPv6 Address. . . . . . . . . . . : 2001:0:9d38:90d7:2ce0:3889:3f57:ff9b
Link-local IPv6 Address . . . . . : fe80::2ce0:3889:3f57:ff9b%8
Default Gateway . . . . . . . . . : ::