Harry Wert wrote: > If this is addressed to the wrong Forum, please feel free to forward > same to any other Forum wherein it might be helpful. This commentary is > intended to be of help to others who may be facing similar Wireless > problems. I make no claim for originality. > > My HP Pavilion dv9012 series laptop with internal BCM94311MCG wlan > mini-PCI card has worked flawlessly with VISTA, SuSE SLED10, Dapper, and > Fiesty. When I upgraded to Gutsy, downloaded the Restricted Firmware, > and went on-line it worked immediately but Download speeds ran from > 20kbs to ~ 60kbs. This, with a DSL broadband line rated and tested for > 7Mbs. I communicated with others via this and other Forums, and also did > many Google searches attempting to resolve this problem, but to no > avail. Finally, I was able to locate the cause and corrective action > necessary to restore full 7mbs speeds by means of a systematic debug > process which worked, and is 100% repeatable. My apologies in advance to > the BCM43xx development group who were both helpful, and had the > patience to stick with me, as the problem had nothing to do with the > Firmware. > > To isolate the problem Vista was run on this dual-boot laptop, which > also contains Gutsy. The BCM94311MCG wlan mini-PCI performance was > identical to that of Gutsy. Conclusion: could be a defective BCM94311MCG > wlan mini-PCI. > > Next I used a Thinkpad Laptop (Dual-boot) running Xp and Fiesty. Results > were identical, low-speed identical to that above, but with Totally > different hardware; ie, it does not use a BCM94311MCG wlan mini-PCI > card. Conclusion: The BCM94311MCG wlan mini-PCI card and the firmware > for same is not the problem. > > Next step was to disconnect my internal Linksys router from my internal > Network, then connect directly to my DSL Modem via Ethernet cable to the > HP Laptop. Result was full DSL 7Mbs speed. Conclusion: problem must be > associated with the Linksys wireless "B" Broadband router. The Internal > Network could not be the problem as it was previously checked for up to > 100Mbs transfer rates. > > The Linksys router was next tested by bypassing the wireless part and > connected to the Laptop via Ethernet cable. Result: Full DSL 7Mbs > performance. Back to square One! > > To finally isolate where the Linksys problem was, everything was > reconnected to it's initial state, rebooted and speed retested. It was > unchanged at 20kbs to ~ 60kbs data rate. Using a wired connection to the > Linksys router was still a full 7Mbs rate. Conclusion: The Linksys > router in the wireless mode is clearly the problem. > > Finally, the Linksys router was given a Full reset. The procedure to > setup from scratch was followed to completion by re-entering all the > necessary information as necessary for operation with the DSL modem. > Result: Problem solved. Full wireless operation with my HP Pavilion > dv9012 and the BCM94311MCG wlan mini-PCI, now produces the identical > 7Mbs data rate as the DSL Modem itself. > > How the Linksys Router lost it's mind is unknown, as it is on an active > UPS system. > > Sorry for the long-winded update, but systematic thought processes are a > necessary attribute for a Physicist! After nearly two weeks of > intermittent investigation I felt compelled to tell someone!
You did a good job of analyzing the problem. As a retired physicist and a former reviewer for Phys. Rev., I have to ask "What was the model and version of the Linksys wireless router?" These consumer-grade access points sometimes lose their minds for no reason. Usually a reboot or reset is all that is needed, but I have one Linksys BEW11S4 Ver. 4 that would not connect at all. It started working when the firmware was reflashed. The strange part is that the "new" version was identical to the "old" one. Larry _______________________________________________ Bcm43xx-dev mailing list [email protected] https://lists.berlios.de/mailman/listinfo/bcm43xx-dev
