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02:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
Subsystem: Hewlett-Packard Company Device [103c:804a]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 36
Region 0: Memory at f0c00000 (64-bit, non-prefetchable) [size=32K]
Capabilities: <access denied>
Kernel driver in use: wl

Wi-fi signal is really weak but in the same time my mac signal is really strong . So it made me wonder that there is something wrong with the driver. I'm new here and with Linux in general as I never faced such issue I am really confused now . I had a similar issue with 16.04 and when tried to fix it , I managed to completely screw it up. so I reinstalled OS to 14.04. I followed step by step here Installing Broadcom Wireless Drivers and the signal has gone weaker than before and it keeps disconnecting even more often now.

Network diagnostics results : results

Community
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Kris
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1 Answers1

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First, check the settings in the router. WPA2-AES is preferred; not any WPA and WPA2 mixed mode and certainly, absolutely not TKIP. Second, if your router is capable of N speeds, you may have better connectivity with a channel width of 20 MHz in the 2.4 GHz band instead of automatic 20/40 MHz, although it is likely to affect N speeds. I also have better luck with a fixed channel, either 1, 6 or 11, rather than automatic channel selection. Also, be certain the router is not set to use N speeds only; auto B, G and N is preferred. After making these changes, reboot the router.

Next, I recommend that your regulatory domain be set explicitly. Check yours:

sudo iw reg get

If you get 00, that is a one-size-maybe-fits-all setting. Find yours here: http://en.wikipedia.org/wiki/ISO_3166-1_alpha-2 Then set it temporarily:

sudo iw reg set IS

Of course, substitute your country code if not Iceland. Set it permanently:

gksudo gedit /etc/default/crda

Use nano or kate or leafpad if you don't have the text editor gedit.

Change the last line to read:

REGDOMAIN=IS

Proofread carefully, save and close the text editor.

Next, I'd set IPv6 to Ignore in Network Manager: http://docs.fedoraproject.org/en-US/Fedora/18/html/Installation_Guide/images/netconfig/network-connections-ipv6-ignore.png This example is for ethernet, but you want wireless.

After these things are done, reboot and test. Give us your report. If the issue is not improved, please let us have an updated wireless_script.

chili555
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