XPS 13 9360 DE - WiFi with Ubuntu not working with my router

Hi Dennis!

I was just wondering, whether you found a solution for your problem? I have the same model as you and enormous problems with unstable wifi connection...

Cheers!

b3n3

Kinda.

After a lot of troubleshooting and testing i can say that the Kernel Version of Ubuntu LTS 16.04 isn't working flawless with the wireless Module. I found that out when i tried Antergos and it worked flawless. So what i did after a lot of other testing is installing the Kubuntu(i like KDE more) 16.10 version with the new updated Kernel. I can't say for sure that it works on Ubuntu 16.10 but it should. If you have the same problem you should try this else I can't help you but my Wifi is working fine now.

Thanks for letting me know Dennis! I'll give the 16.10 kernel a go. At the moment it's not super urgent - wifi is stable about 80% of the time so I might just wait for the yakketi HWE coming to 16.04. If I don't get too frustrated before that I guess. ;)

I have similar issues. Wifi works fine for a few minutes and then stops working, sometimes recovers. Intervals vary. dmesg shows all kinds of wifi related messages.

[ 277.742946] wlp58s0: associate with e0:3f:49:40:8a:a4 (try 1/3)
[  277.747719] wlp58s0: RX AssocResp from e0:3f:49:40:8a:a4 (capab=0x411 status=0 aid=2)
[  277.751127] wlp58s0: associated
[  277.751202] IPv6: ADDRCONF(NETDEV_CHANGE): wlp58s0: link becomes ready
[  277.810369] wlp58s0: AP e0:3f:49:40:8a:a4 changed bandwidth, new config is 2412 MHz, width 2 (2422/0 MHz)
[  299.767079] mce: [Hardware Error]: Machine check events logged
[  305.830397] ath10k_pci 0000:3a:00.0: firmware crashed! (uuid 41f43cb7-ae22-4126-a6cc-ef91c11dcfef)
[  305.830429] ath10k_pci 0000:3a:00.0: qca6174 hw3.2 (0x05030000, 0x00340aff sub 1a56:1535) fw WLAN.RM.2.0-00180-QCARMSWPZ-1 fwapi 4 bdapi 2 htt-ver 3.26 wmi-op 4 htt-op 3 cal otp max-sta 32 raw 0 hwcrypto 1 features wowlan,ignore-otp,no-4addr-pad
[  305.830437] ath10k_pci 0000:3a:00.0: debug 0 debugfs 1 tracing 1 dfs 0 testmode 0
[  305.832450] ath10k_pci 0000:3a:00.0: firmware register dump:
[  305.832461] ath10k_pci 0000:3a:00.0: [00]: 0x05030000 0x000015B3 0x009860FA 0x00955B31
[  305.832466] ath10k_pci 0000:3a:00.0: [04]: 0x009860FA 0x00060730 0x00000004 0x0040E8A0
[  305.832473] ath10k_pci 0000:3a:00.0: [08]: 0x00498110 0x00955A00 0x0000000B 0x00400000
[  305.832479] ath10k_pci 0000:3a:00.0: [12]: 0x00000009 0x00000000 0x00952CD0 0x00952CE6
[  305.832484] ath10k_pci 0000:3a:00.0: [16]: 0x00952CC4 0x0091080D 0x00000000 0x0091080D
[  305.832489] ath10k_pci 0000:3a:00.0: [20]: 0x409860FA 0x0040E7E8 0x00000000 0x0041E0DC
[  305.832495] ath10k_pci 0000:3a:00.0: [24]: 0x800B5A1D 0x0040E848 0x000FFFFF 0xC09860FA
[  305.832501] ath10k_pci 0000:3a:00.0: [28]: 0x809B3230 0x0040E948 0x00000018 0x004313B8
[  305.832507] ath10k_pci 0000:3a:00.0: [32]: 0x809B2992 0x0040E998 0x0040E9BC 0x00429548
[  305.832512] ath10k_pci 0000:3a:00.0: [36]: 0x8091D252 0x0040E9B8 0x00000000 0x00000001
[  305.832519] ath10k_pci 0000:3a:00.0: [40]: 0x809FF05D 0x0040EA68 0x0043A380 0x00429C10
[  305.832525] ath10k_pci 0000:3a:00.0: [44]: 0x809FCFDB 0x0040EA88 0x0043A380 0x00000001
[  305.832530] ath10k_pci 0000:3a:00.0: [48]: 0x80911210 0x0040EAD8 0x00000010 0x004041D0
[  305.832535] ath10k_pci 0000:3a:00.0: [52]: 0x80911154 0x0040EB28 0x00400000 0x00000000
[  305.832541] ath10k_pci 0000:3a:00.0: [56]: 0x8091122D 0x0040EB48 0x00000000 0x00400600
[  305.915034] ieee80211 phy0: Hardware restart was requested
[  308.294503] ath10k_pci 0000:3a:00.0: device successfully recovered
[  322.984296] wlp58s0: deauthenticating from e0:3f:49:40:8a:a4 by local choice (Reason: 3=DEAUTH_LEAVING)
[  322.996249] cfg80211: World regulatory domain updated:
[  322.996252] cfg80211:  DFS Master region: unset
[  322.996253] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[  322.996255] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[  322.996257] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[  322.996259] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[  322.996260] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[  322.996262] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[  322.996264] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[  322.996265] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[  322.996266] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[  331.706121] wlp58s0: authenticate with e0:3f:49:40:8a:a4
[  331.752548] wlp58s0: send auth to e0:3f:49:40:8a:a4 (try 1/3)
[  331.754211] wlp58s0: authenticated
[  331.755732] wlp58s0: associate with e0:3f:49:40:8a:a4 (try 1/3)
[  331.759885] wlp58s0: RX AssocResp from e0:3f:49:40:8a:a4 (capab=0x411 status=0 aid=2)
[  331.762977] wlp58s0: associated
[  526.752707] wlp58s0: AP e0:3f:49:40:8a:a4 changed bandwidth, new config is 2412 MHz, width 1 (2412/0 MHz)

I've also had a lot of issues with WiFi - works OK when close to the access point, but then drops to basically unusable when 30 feet away.

Hoping somebody figures this out... I'll keep an eye on this thread in the hopes that someone with far more linux experience than I can sort it and help all of us!

+1 here, got my XPS 13 9360 DE yesterday. A lot of wifi issues. It works went sitting close to the router but looses the signal as soon as I move to another room (No issues with any other laptop).

Ditch Ubuntu and switch to Fedora 25. I have been using it on 9360 for two weeks. I have never experienced wifi hiccups. Everything works out of the box.

Thanks for the suggestion, but the reason why I bought a Dell laptop is that it's supposed to work on Linux out of the box, otherwise I would be running Gentoo on an HP. I do not want to spend any time in re-installing another distro so I decided to trust Ubuntu on Dell. Not as smooth as expected ;-)

I believe it is related to Linux kernel version you used in Ubuntu since I have done nothing like compiling external module in Fedora. Unless Dell is going to patch its kernel from upstream (which is unlikely), you are better off to find an alternative distro.

BTW, I don't pay Dell premium for their developer edition. It cost at least $200-$300 more for the same hardware configuration in 9630 between DE and Win10.