Wireless and wired internet drop randomly

[ggranson91]

Hi,
I recently switched over to ubuntu 12.04 from windows 7. After the switch I downloaded Broadcom Wireless STA driver from a wired connection which gave me the ability to actually get on the internet. However, although I can get on the internet it continues to drop periodically saying "Server Not Found" and a simple refresh of the page fixes the problem. Although annoying I could deal with this. But I am heavy usenet user and this makes for not being able to download things as well as any packages from the software center. I've included some information if any additional information is need let me know

@garrett:~$ lspci | grep -i net
03:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)

garrett@garrett:~$ iwconfig
lo no wireless extensions.

eth2 IEEE 802.11 Access Point: Not-Associated
Link Quality:5 Signal level:213 Noise level:199
Rx invalid nwid:0 invalid crypt:0 invalid misc:0

eth0 no wireless extensions.
(my internet was working during the above "iwconfig command)

[ggranson91]

Just trying to get this moved back up. If anyone can help me at all with this problem it would be greatly greatly appreciated!!

[chili555]

Are you using the STA driver? There is another way to get this working that may be more effective:

lsmod | grep -e wl -e b43

How is your signal strength?

sudo iwlist eth2 scan

[ggranson91]

Wired -

garrett@garrett:~$ lsmod | grep -e wl -e b43
wl 2646601 0
lib80211 14040 2 lib80211_crypt_tkip,wl
garrett@garrett:~$ sudo iwlist eth2 scan
[sudo] password for garrett:
eth2 Failed to read scan data : Invalid argument

and

garrett@garrett:~$ lsmod | grep -e wl -e b43
wl 2646601 0
lib80211 14040 2 lib80211_crypt_tkip,wl
garrett@garrett:~$ sudo iwlist eth2 scan
[sudo] password for garrett:
eth2 Failed to read scan data : Invalid argument

[ggranson91]

Wired -

garrett@garrett:~$ lsmod | grep -e wl -e b43
wl 2646601 0
lib80211 14040 2 lib80211_crypt_tkip,wl

And

garrett@garrett:~$ sudo iwlist eth2 scan
eth2 Scan completed :
Cell 01 - Address: 00:1D3:AF:3B:40
ESSID:"HOME-3B42"
Mode:Managed
Frequency:2.412 GHz (Channel 1)
Quality:5/5 Signal level:-34 dBm Noise level:-92 dBm
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD7D0050F204104A0001101044000102103B00010310470010 2880288028801880A880001DD3AF3B40102100054152524953 10230006544738363247102400065254323836301042000831 323334353637381054000800060050F2040001101100124152 52495320544738363220526F75746572100800020084103C00 0101
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Encryption keyn
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 12 Mb/s
24 Mb/s; 48 Mb/s
Cell 02 - Address: B8:E6:25E:CF1
ESSID:"2WIRE185"
Mode:Managed
Frequency:2.437 GHz (Channel 6)
Quality:1/5 Signal level:-81 dBm Noise level:-92 dBm
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Encryption keyn
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
Cell 03 - Address: 34:EF:44:43:3A1
ESSID:"Mywireless"
Mode:Managed
Frequency:2.462 GHz (Channel 11)
Quality:1/5 Signal level:-85 dBm Noise level:-92 dBm
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Encryption keyn
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s

[ggranson91]

Thanks for the help chili. During wired I was getting about 3.1 MB's down and was still having an issue with it dropping in and out. With wireless I was getting virtually 0 down and still dropping what little connection I had.

[chili555]

Let's see if we can try a different, possibly better driver. Hook up the ethernet and do:

sudo apt-get remove --purge bcmwl-kernel-source
sudo apt-get install firmware-b43-lpphy-installer

After it finishes, reboot with the ethernet detached and let us have your report.

[ggranson91]

WIreless Connection (still dropping) -


Code:

garrett@garrett:~$ lsmod | grep -e wl -e b43
b43 342643 0
mac80211 436455 1 b43
cfg80211 178679 2 b43,mac80211
bcma 25651 1 b43
ssb 50691 1 b43

Code:

garrett@garrett:~$ sudo iwlist eth2 scan
[sudo] password for garrett:
eth2 Interface doesn't support scanning.

[ggranson91]

I'm not sure how u post the little code boxes that u use. I apologize for being a rookie!

[chili555]

I suspect your wireless interface is now wlan0 or wlan-something. Check:

iwconfig
sudo iwlist wlan0 scan <--or whatever wlan you found

You can highlight text and then surround them with a code box using the # button at the top of the reply box. Please see attached.