Hi there,
I have a Pixel 3 and my laptop randomly disconnects from the wifi hotspot, when I am moving through areas with high wireless congestion. I used a Redmi Note 4 with LineageOS before and did not have that problem. It only happens when I am on the train and I also see lots of messages like this in the logs of the laptop:
wlp2s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-38 noise=9999 txrate=650000
And especially this one:
wlp2s0: CTRL-EVENT-CHANNEL-SWITCH freq=5200 ht_enabled=1 ch_offset=-1 ch_width=80 MHz cf1=5210 cf2=0
wlp2s0: CTRL-EVENT-CHANNEL-SWITCH freq=2457 ht_enabled=1 ch_offset=0 ch_width=20 MHz cf1=2457 cf2=0
Often times, the laptop seems to be able to follow the channel changes, but sometimes it doesn't. I continuously ping the ip of the Pixel 3 (which, btw. switches, every time I activate the hotspot, within the 192.168.43 subnet, I had 192.168.43.81, 192.168.43.35, 192.168.43.60, ...). The laptop still shows it's connected, but the ping to the phone fails.
Those frequency changes even jumps bands. Initially I would be in the 5Ghz band, but the Pixel 3 would switch to the 2.4Ghz band during operation. Presumably, because the 5Ghz band is too busy. I believe the disconnects (which aren't really detected by the network manager of the laptop) are connected to the channel changes, since I usually see a message for a channel change in the logs around the time I lose connectivity.
The options in the hotspot dialogue are very limited. Thus I was able to try all combinations, except for turning off encryption.
I am currently using Android 9 Pie, since we are getting 10 Q soon, maybe it will be better.
The laptop is running Debian GNU/Linux 10, but the wifi chip is fairly old (Intel Corporation Wireless 7265) and well supported, so I don't expect that to be the issue. I am also thinking about filing a bug with network-manager for failing to detect the loss of connectivity, but since I did not have the issue with the Redmi Note, I am also looking at the Pixel 3 as a potential way to fix this issue for me.
Are there more options hidden or other accessible, such as turning off the channel switches
I have a Pixel 3 and my laptop randomly disconnects from the wifi hotspot, when I am moving through areas with high wireless congestion. I used a Redmi Note 4 with LineageOS before and did not have that problem. It only happens when I am on the train and I also see lots of messages like this in the logs of the laptop:
wlp2s0: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=-38 noise=9999 txrate=650000
And especially this one:
wlp2s0: CTRL-EVENT-CHANNEL-SWITCH freq=5200 ht_enabled=1 ch_offset=-1 ch_width=80 MHz cf1=5210 cf2=0
wlp2s0: CTRL-EVENT-CHANNEL-SWITCH freq=2457 ht_enabled=1 ch_offset=0 ch_width=20 MHz cf1=2457 cf2=0
Often times, the laptop seems to be able to follow the channel changes, but sometimes it doesn't. I continuously ping the ip of the Pixel 3 (which, btw. switches, every time I activate the hotspot, within the 192.168.43 subnet, I had 192.168.43.81, 192.168.43.35, 192.168.43.60, ...). The laptop still shows it's connected, but the ping to the phone fails.
Those frequency changes even jumps bands. Initially I would be in the 5Ghz band, but the Pixel 3 would switch to the 2.4Ghz band during operation. Presumably, because the 5Ghz band is too busy. I believe the disconnects (which aren't really detected by the network manager of the laptop) are connected to the channel changes, since I usually see a message for a channel change in the logs around the time I lose connectivity.
The options in the hotspot dialogue are very limited. Thus I was able to try all combinations, except for turning off encryption.
I am currently using Android 9 Pie, since we are getting 10 Q soon, maybe it will be better.
The laptop is running Debian GNU/Linux 10, but the wifi chip is fairly old (Intel Corporation Wireless 7265) and well supported, so I don't expect that to be the issue. I am also thinking about filing a bug with network-manager for failing to detect the loss of connectivity, but since I did not have the issue with the Redmi Note, I am also looking at the Pixel 3 as a potential way to fix this issue for me.
Are there more options hidden or other accessible, such as turning off the channel switches
