I have installed Linux Mint 18.3 Cinnamon on my HP-Compaq-6710b laptop. Bluetooth is on but still wireless network is not working. It shows cable network. I had Linux Mint 17 before and it had no such problem.
Please check below reports.
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xyz@HP-Compaq-6710b ~ $ inxi -Fxz
System: Host: HP-Compaq-6710b Kernel: 4.10.0-38-generic i686 (32 bit gcc: 5.4.0)
Desktop: Cinnamon 3.6.6 (Gtk 3.18.9-1ubuntu3.3)
Distro: Linux Mint 18.3 Sylvia
Machine: System: Hewlett-Packard product: HP Compaq 6710b (GX486PA#UUF) v: F.20
Mobo: Hewlett-Packard model: 30C0 v: KBC Version 71.2E
Bios: Hewlett-Packard v: 68DDU Ver. F.20 date: 12/01/2011
CPU: Dual core Intel Core2 Duo T7100 (-MCP-) cache: 2048 KB
flags: (lm nx pae sse sse2 sse3 ssse3 vmx) bmips: 7181
clock speeds: max: 1800 MHz 1: 1200 MHz 2: 1200 MHz
Graphics: Card: Intel Mobile GM965/GL960 Integrated Graphics Controller (primary)
bus-ID: 00:02.0
Display Server: X.Org 1.18.4 drivers: intel (unloaded: fbdev,vesa)
Resolution: 1280x800@60.01hz
GLX Renderer: Mesa DRI Intel 965GM x86/MMX/SSE2
GLX Version: 2.1 Mesa 17.0.7 Direct Rendering: Yes
Audio: Card Intel 82801H (ICH8 Family) HD Audio Controller
driver: snd_hda_intel bus-ID: 00:1b.0
Sound: Advanced Linux Sound Architecture v: k4.10.0-38-generic
Network: Card-1: Broadcom BCM4311 802.11a/b/g
driver: b43-pci-bridge bus-ID: 10:00.0
IF: N/A state: N/A mac: N/A
Card-2: Broadcom NetLink BCM5787M Gigabit Ethernet PCI Express
driver: tg3 v: 3.137 bus-ID: 18:00.0
IF: ens1 state: down mac: <filter>
Drives: HDD Total Size: 80.0GB (10.4% used)
ID-1: /dev/sda model: Hitachi_HTS54258 size: 80.0GB temp: 41C
Partition: ID-1: / size: 27G used: 5.1G (20%) fs: ext4 dev: /dev/sda4
ID-2: swap-1 size: 3.07GB used: 0.00GB (0%) fs: swap dev: /dev/sda1
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 42.0C mobo: 20.0C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 179 Uptime: 1:07 Memory: 447.6/2004.4MB
Init: systemd runlevel: 5 Gcc sys: 5.4.0
Client: Shell (bash 4.3.481) inxi: 2.2.35
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xyz@HP-Compaq-6710b ~ $ rfkill list all
1: hp-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no
2: hp-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
3: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
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xyz@HP-Compaq-6710b ~ $ iwconfig
ens1 no wireless extensions.
lo no wireless extensions.
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xyz@HP-Compaq-6710b ~ $ sudo apt-get install firmware-b43-installer
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
b43-fwcutter
The following NEW packages will be installed:
b43-fwcutter firmware-b43-installer
0 upgraded, 2 newly installed, 0 to remove and 1 not upgraded.
Need to get 27.2 kB of archives.
After this operation, 147 kB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Err:1 http://archive.ubuntu.com/ubuntu xenial/main i386 b43-fwcutter i386 1:019-2
Temporary failure resolving 'archive.ubuntu.com'
Err:2 http://archive.ubuntu.com/ubuntu xenial/multiverse i386 firmware-b43-installer all 1:019-2
Temporary failure resolving 'archive.ubuntu.com'
E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/b/b43-fwcutter/b43-fwcutter_019-2_i386.deb Temporary failure resolving 'archive.ubuntu.com'
E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/multiverse/b/b43-fwcutter/firmware-b43-installer_019-2_all.deb Temporary failure resolving 'archive.ubuntu.com'
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?