"ext Krischan Keitsch" <krischan.keitsch at alumni.tu-berlin.de> writes: >> >> It's a shame that there are so many broken APs on the market. I see >> lots of them when dealing with bug reports :( I guess WLAN Power Save >> Mode was really rare earlier, but fortunately nowadays it's getting >> more popular and AP manufactures have noticed the problem. > > Hi Kalle, > I had a similar problem with my Siemens sx541 wlan dsl router using dhcp. The > n800 keeps sending dhcp requests. That caused up to 20 - 30% cpu usage and > drains the battery really fast. > > (See Bug 1627 & Bug 1646) > > Switching to a fixed ip solved that problem for me. Yeah, if applications send lots of data, naturally that will increase power consumption dramatically. For these cases it would helpful if you could install tcpdump to the device and take a dump of traffic. You could do it like this: tcpdump -i wlan -w dhcp-1.cap And then attach dhcp-1.cap to the bug report. That would help a lot. -- Kalle Valo
