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XPS 13 9300 Developer Edition with very weak Wifi signal on linux
I am experiencing a very weak wifi signal with my XPS 13 9300 compared to other devices. The connection is so weak that it very frequently disconnects and then reconnects (sometimes multiple times within a minute). This renders the WIFI connection extremely unreliable.
Here's the output of "iwconfig" with the laptop just one room away from the router
$ iwconfig
lo no wireless extensions.
wlp0s20f3 IEEE 802.11 ESSID:""
Mode:Managed Frequency:5.6 GHz Access Point:
Bit Rate=468 Mb/s Tx-Power=22 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=42/70 Signal level=-68 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:8 Missed beacon:0
Another laptop shows a link quality of 57/70, signal level -53dBm with a Tx-Power of 15 dBm in the exact same location. My android phone also shows a signal level of ~-50dBm.
Is the weak signal a sign of a hardware problem?
Moritz Obermeyer
2 Posts
0
February 2nd, 2021 01:00
I'm experiencing the same problem on Ubuntu 20.04. Are there any updates on this?
Moritz Obermeyer
2 Posts
0
February 2nd, 2021 02:00
It seems that the network card in the XPS 9300 always wants to connect to the 5GHz WLAN, even if the signal is much worse than that of the 2,4GHz one.
So I just assigned different SSIDs to both networks and now connect to the 2,4GHz network, which made the performance much better!