Problem with broadcom 802.11g Wifi-Adapter

[Ludibubi]

I could only find this single tear down video of the Presario b1900:
https://www.youtube.com/watch?v=HnEvrWA7Vl4
At the 1:34 mark, it shows how to access the WiFi card which seems to only have one antenna connection. This could be the problem as it would give the laptop spotty range. You would have to be really close to the router for WiFi to work reliably. It might be worth your while to invest in a USB WiFi dongle,

You may be right with the antenna. But under WIN7 I had no problems to access my network anywhere. And I'm very close to my Fritzbox at the moment (0,5 - 1,0 mtrs) and can't access the networtk. But I can access the gardenrepeater which is at the roof and apprx. 6 mtrs away.

Which WIFI-dongle can Iuse?

[Minnie the Moocher]

Change the channel from "auto" to (preferably) ch.1 in router settings.

[j2mcgreg]

@Ludibubi wrote:

Which WIFI-dongle can Iuse?

Any of these should work, but scroll down the single band adaptors because your router is single band as well (and they are cheaper):
https://github.com/morrownr/USB-WiFi/bl ... el-drivers

[j2mcgreg]

Change the channel from "auto" to (preferably) ch.1 in router settings.

Some explanation of why this might work would be helpful to the OP who has stated that he / she is a rank beginner.

[Ludibubi]

Change the channel from "auto" to (preferably) ch.1 in router settings.

I've switched it to channel 1 but no change.

[Minnie the Moocher]

Some explanation ...

Just a real life example:

The built-in wifi device ( Broadcom BCM4312 802.11b/g ) of this laptop does not even see the access point (router or phone (tethering)) when it's set to auto and (as a result of that) ch. 13 is selected (when all other devices and dongle can connect with no issues).

So, though there's no problem with Windows, it may be the repeater might be using a different channel (say, ch. 6) therefore connecting without issue, but the router selects something like 13 that this device cannot work with, or so ..


Also, as to why ch.1 preferably:

https://upload.wikimedia.org/wikipedia/ ... LAN%29.svg

https://upload.wikimedia.org/wikipedia/ ... .11-en.svg

[fluxboxplus]

IMHO broadcom devices are just a mess. I know those issues as well. Maybe run modinfo on the driver (.ko) file to see the configuration parameters then try if some help - load them with modprobe driver.ko optionname=option ...

If i still had a broadcom device then i could show examples, but i don't sry.

it might have options like

Code: Select all

parm:           bad_frames_preempt:enable(1) / disable(0) Bad Frames Preemption (int)
parm:           fwpostfix:Postfix for the .fw files to load. (string)
parm:           hwpctl:Enable hardware-side power control (default off) (int)
parm:           nohwcrypt:Disable hardware encryption. (int)
parm:           hwtkip:Enable hardware tkip. (int)
parm:           qos:Enable QOS support (default on) (int)
parm:           btcoex:Enable Bluetooth coexistence (default on) (int)
parm:           verbose:Log message verbosity: 0=error, 1=warn, 2=info(default), 3=debug (int)
parm:           pio:Use PIO accesses by default: 0=DMA, 1=PIO (int)
parm:           allhwsupport:Enable support for all hardware (even it if overlaps with the brcmsmac driver) (int)

[Ludibubi]

@Ludibubi wrote:

Which WIFI-dongle can Iuse?

Any of these should work, but scroll down the single band adaptors because your router is single band as well (and they are cheaper):
https://github.com/morrownr/USB-WiFi/bl ... el-drivers

I checked those links, but these adapters are not available. I found these one:

https://www.amazon.de/s?k=panda+wireles ... _sb_noss_2

[Ludibubi]

Some explanation ...

Just a real life example:

The built-in wifi device ( Broadcom BCM4312 802.11b/g ) of this laptop does not even see the access point (router or phone (tethering)) when it's set to auto and (as a result of that) ch. 13 is selected (when all other devices and dongle can connect with no issues).

So, though there's no problem with Windows, it may be the repeater might be using a different channel (say, ch. 6) therefore connecting without issue, but the router selects something like 13 that this device cannot work with, or so ..


Also, as to why ch.1 preferably:

https://upload.wikimedia.org/wikipedia/ ... LAN%29.svg

https://upload.wikimedia.org/wikipedia/ ... .11-en.svg

I'm using a FritzBos 7590 with Mesh-Repeaters. AVM says, that the repeaters automatically use the same settings (SSID, Channel etc.) as the FritzBox. I know tried the following:

1. Box Autochannel and Repeater/s activeed
2. Box Autochannel and Repeater/s deactivated
3. Box Channel 1 and Repeater/s activated
4. Box Channel 1 and Repeater/s deactivated

No changes. The network is recognized but no connection.

By the way: I found in the net something about Ndiswrapper. I don#t know exactly how to use it, but could it be helpful?

[j2mcgreg]

@Ludibubi wrote:

I found in the net something about Ndiswrapper. I don#t know exactly how to use it, but could it be helpful?

No. Ndiswrapper is obsolete. See here:
https://en.wikipedia.org/wiki/NDISwrapper