My Inspiron 1545 won't connect to the internet

My laptop was working fine until I had to get a Windows Vista disc to reboot it clean. The Wi-Fi worked before, and I try searching for everything to find out. The only things I find are "Just press F2" or "Just press Fn and F2 at the same time" yet they don't work for me. I tried using the Dell drivers disc to download some of the network drivers, yet nothing will download except the Marvell Ethernet driver. I have to hook it up to Ethernet which I don't like to do. I went 1 inch in front of my router and tried without Ethernet and it still doesn't work. Can anybody tell me why without saying "Just press F2 and Fn" or "Just press F2". It's been bugging me for a very long time. If you need my System Info, here it is (the network card is the Ethernet I'm using right now):

Host Name: JACOB-PC
OS Name: Microsoftr Windows VistaT Home Premium
OS Version: 6.0.6001 Service Pack 1 Build 6001
OS Manufacturer: Microsoft Corporation
OS Configuration: Standalone Workstation
OS Build Type: Multiprocessor Free
Registered Owner: Jacob
Registered Organization:

Original Install Date: 9/7/2017, 8:50:13 PM
System Boot Time: 9/10/2017, 8:17:02 AM
System Manufacturer: Dell Inc.
System Model: Inspiron 1545
System Type: X86-based PC
Processor(s): 1 Processor(s) Installed.
[01]: x64 Family 6 Model 23 Stepping 10 GenuineIntel ~1200 Mhz
BIOS Version: Dell Inc. A08, 6/3/2009
Windows Directory: C:\Windows
System Directory: C:\Windows\system32
Boot Device: \Device\HarddiskVolume3
System Locale: en-us;English (United States)
Input Locale: en-us;English (United States)
Time Zone: (GMT-08:00) Pacific Time (US & Canada)
Total Physical Memory: 3,545 MB
Available Physical Memory: 1,983 MB
Page File: Max Size: 7,321 MB
Page File: Available: 5,967 MB
Page File: In Use: 1,354 MB
Page File Location(s): C:\pagefile.sys
Domain: WORKGROUP
Logon Server: \\JACOB-PC
Hotfix(s): 4 Hotfix(s) Installed.
[01]: 942567
[02]: KB935509
[03]: KB937287
[04]: KB938371
Network Card(s): 1 NIC(s) Installed.
[01]: Marvell Yukon 88E8040 PCI-E Fast Ethernet Controller
Connection Name: Local Area Connection
DHCP Enabled: Yes
DHCP Server: 192.168.1.1
IP address(es)
[01]: 192.168.1.224
[02]: fe80::85a9:6e2:6169:cc4e