嗨，几个月前我买了一台新的戴尔 Inspriron 5501。从来没有真正用过它。但是安装 Ubuntu 20.04 后，我的互联网仍然很慢。我的下载速度只有 100KB/秒，而当我尝试使用 google speedtest 时，它应该是 6-10MB/秒（大约 100Mb/s 的速度）。它显示下载速度为 0.5Kb/秒，上传速度为 22-30 Mb/s。如果我有相同的下载速度，那就足够了。我整天都在使用笔记本电脑，我进行了所有更新和升级，并查看了所有文章和视频，但没有任何帮助。我正在用手机写这篇文章，因此对于我应该包含的任何信息，请在评论中告诉我。
输出$ dmesg | grep ath10k
[ 4.757415] ath10k_pci 0000:02:00.0: enabling device (0000 -> 0002)
[ 4.762032] ath10k_pci 0000:02:00.0: pci irq msi oper_irq_mode 2 irq_mode 0 reset_mode 0
[ 5.040354] ath10k_pci 0000:02:00.0: qca6174 hw3.2 target 0x05030000 chip_id 0x00340aff sub 1028:0310
[ 5.040360] ath10k_pci 0000:02:00.0: kconfig debug 0 debugfs 1 tracing 1 dfs 0 testmode 0
[ 5.041163] ath10k_pci 0000:02:00.0: firmware ver WLAN.RM.4.4.1-00140-QCARMSWPZ-1 api 6 features wowlan,ignore-otp,mfp crc32 29eb8ca1
[ 5.105831] ath10k_pci 0000:02:00.0: board_file api 2 bmi_id N/A crc32 4ac0889b
[ 5.200882] ath10k_pci 0000:02:00.0: htt-ver 3.60 wmi-op 4 htt-op 3 cal otp max-sta 32 raw 0 hwcrypto 1
[ 5.295343] ath10k_pci 0000:02:00.0 wlp2s0: renamed from wlan0
[ 18.008823] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 18.010108] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 24.010724] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 24.011647] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 30.009366] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 30.010640] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 36.009945] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 36.011334] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 42.011827] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 42.012971] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 48.009416] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 48.010704] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 54.011943] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 54.013351] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 60.014821] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 60.016166] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 84.011663] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 84.012795] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 90.015108] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 90.016122] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 96.011744] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 96.012943] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 102.012232] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 102.013386] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 102.178522] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 103.612775] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 108.011759] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 108.013078] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 114.011739] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 114.012901] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 120.011767] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 120.013119] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 126.011897] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 126.013112] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 132.011688] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 132.012862] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 138.009695] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 138.010798] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 144.011840] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 144.012938] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 150.113361] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 150.114693] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 162.251655] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 162.252923] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 168.271059] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 168.272461] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 174.279883] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 174.280840] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 186.092556] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 186.093811] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 192.003652] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 192.004995] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 194.532026] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 194.533303] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 203.942651] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 203.943955] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 222.000916] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 222.002124] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 222.813938] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 228.016354] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 228.017449] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 252.028275] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 252.029411] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 258.030383] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 258.031754] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 264.026714] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 264.027839] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 288.033685] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 288.034804] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 300.034578] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 300.035947] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 306.036490] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 306.037821] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 311.960399] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 311.961235] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 317.883515] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 317.884912] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 323.842546] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 323.843802] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 329.826190] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 329.827531] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 335.813916] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 335.815081] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 341.810950] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 341.812155] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 347.798763] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 347.800010] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 351.419238] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 353.788182] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 353.789394] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 359.780016] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 359.781268] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 365.773557] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 365.774799] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 371.768658] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 371.769688] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 374.309419] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 374.310855] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 377.761462] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 377.762641] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 383.758512] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 383.759648] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 389.756285] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 389.757513] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 395.752431] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 395.753400] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 401.749356] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 401.750323] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 407.745060] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 407.746214] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 413.747226] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 413.748684] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 419.752487] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 419.753930] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 425.750015] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 425.751176] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 437.753695] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 437.755005] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 443.750289] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 443.751526] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 449.749290] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 449.750455] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 455.748437] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 455.749750] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 461.749932] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 461.751324] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 467.745414] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 467.746594] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 473.743607] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 473.744741] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 485.740048] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 485.741275] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 491.742066] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 491.743320] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 497.740035] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 497.741303] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 503.737846] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 503.739056] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 509.731330] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 509.732485] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 515.730204] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 515.731434] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 521.728071] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 521.729500] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 527.728707] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 527.729909] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 533.727214] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 533.728373] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 551.726794] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 551.728254] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 557.729180] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 557.730558] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 575.730183] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 575.731451] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 587.730201] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 587.731209] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 599.732890] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 599.734112] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 605.732181] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 605.733399] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 611.728074] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 611.729264] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 641.721268] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 641.722758] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 647.719393] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 647.720532] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 653.717955] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 653.719091] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 659.716655] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 659.717839] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 671.713614] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 671.714776] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
[ 677.712905] ath10k_pci 0000:02:00.0: invalid ht params rate 1440 100kbps nss 2 mcs 7
无效 ht 参数率的错误远不止上面提到的这些，我在这里只附加了不到一半。
谢谢。