Hi Keith, On 3/24/21 6:16 PM, KeithG wrote: > I have been having problems getting my broadcom based cards to > reconnect when the disconnect is caused from the router side. It used > to be a problem with NetworkManager as well as connman, but something > recently happened with NM and now it reconnects in this scenario. When > I have connman managing and a broadcom card, any disconnect from the > router side will not reconnect. NM uses iwd's autoconnect now, so the behavior should be the same between iwd-standalone and NM+iwd. I haven't really kept up with ConnMan... > > I have 3 machines that I contrast. 1 x86 laptop with an intel card, 1 > laptop with a brcmsmac card and 1 (a bunch) of raspberry pis with > brcmfmac cards. All will connect at boot time correctly. and the > laptops reconnect at resume correctly as well. > > On the 2 laptops when NetworkManager is controlling things (Intel and > brsmac with the iwd backend) and I disconnect it from the router end, > they reconnect fine. When connman is controlling it, only the laptop > with the intel card will reconnect. When I run the test on the laptop > with the connman managing the brcmsmac card, all it does is this: brcmsmac and brcmfmac are really quite different drivers. We probably would need a full iwmon trace + iwd debug log from both platforms... > > $ ./monitor-iwd > {Station} [/net/connman/iwd/0/7] State = disconnected > {Network} [/net/connman/iwd/0/7/73706733_psk] Connected = False > {Station} [/net/connman/iwd/0/7] Scanning = True What is a bit concerning is that Scanning goes to True but is never reset until after the disconnect. This seems like a minor bug on our side... > {Station} [/net/connman/iwd/0/7] State = connecting > {Station} [/net/connman/iwd/0/7] ConnectedNetwork = > /net/connman/iwd/0/7/73706733_psk So from the iwd-monitor log it looks like you connect to '73706733_psk' > {Network} [/net/connman/iwd/0/7/73706733_psk] Connected = True > {Station} [/net/connman/iwd/0/7] State = disconnected We get disconnected and presumably scan at least once and don't find any existing networks... > {Network} [/net/connman/iwd/0/7/73706733_psk] Connected = False > {Removed net.connman.iwd.Network} > [/net/connman/iwd/0/7/53756c6c6976616e2046616d696c79_psk] > {Removed net.connman.iwd.Network} > [/net/connman/iwd/0/7/415454385a7334464b33_psk] > {Removed net.connman.iwd.Network} [/net/connman/iwd/0/7/73706732_psk] > {Removed net.connman.iwd.Network} [/net/connman/iwd/0/7/4e4554474541523633_psk] > {Removed net.connman.iwd.Network} > [/net/connman/iwd/0/7/436f6e6e656374696e672e2e2e_psk] > {Removed net.connman.iwd.Network} > [/net/connman/iwd/0/7/4d4f544f524f4c412d4645304431_psk] > {Removed net.connman.iwd.Network} > [/net/connman/iwd/0/7/41545470666b766e4378_psk] > {Added net.connman.iwd.Network} [/net/connman/iwd/0/7/4e4554474541523332_psk] > Name = NETGEAR32 > Connected = False > Device = /net/connman/iwd/0/7 > Type = psk > {Station} [/net/connman/iwd/0/7] Scanning = False > Hmm, it shouldn't stop completely. In theory it should scan after 10 seconds or so. Can you try setting [Scan].MaximumPeriodicScanInterval to 15 in /etc/iwd/main.conf? > Then it stops and nothing more happens. The output from monitor-iwd > looks very similar on the RPis running the brcmfmac card. It > disconnects but then never seems to re-scan and reconnect. > Ok, we definitely need to see the logs to see what's happening. https://iwd.wiki.kernel.org/debugging Regards, -Denis