Hi. I just found the following error in the output from dmesg.
[ 4023.460058] iwlwifi 0000:02:00.0: Microcode SW error detected. Restarting 0x0. [ 4023.460178] iwlwifi 0000:02:00.0: Start IWL Error Log Dump: [ 4023.460179] iwlwifi 0000:02:00.0: Status: 0x00000080, count: 6 [ 4023.460180] iwlwifi 0000:02:00.0: Loaded firmware version: 46.93e59cf4.0 [ 4023.460181] iwlwifi 0000:02:00.0: 0x000022CE | ADVANCED_SYSASSERT [ 4023.460182] iwlwifi 0000:02:00.0: 0x0590A2F0 | trm_hw_status0 [ 4023.460182] iwlwifi 0000:02:00.0: 0x00000000 | trm_hw_status1 [ 4023.460183] iwlwifi 0000:02:00.0: 0x00488472 | branchlink2 [ 4023.460183] iwlwifi 0000:02:00.0: 0x00479392 | interruptlink1 [ 4023.460184] iwlwifi 0000:02:00.0: 0x00000000 | interruptlink2 [ 4023.460184] iwlwifi 0000:02:00.0: 0x0000012C | data1 [ 4023.460185] iwlwifi 0000:02:00.0: 0x00000000 | data2 [ 4023.460186] iwlwifi 0000:02:00.0: 0x04000000 | data3 [ 4023.460186] iwlwifi 0000:02:00.0: 0x42001A44 | beacon time [ 4023.460187] iwlwifi 0000:02:00.0: 0x4E9F05CD | tsf low [ 4023.460187] iwlwifi 0000:02:00.0: 0x000000D8 | tsf hi [ 4023.460188] iwlwifi 0000:02:00.0: 0x00000000 | time gp1 [ 4023.460188] iwlwifi 0000:02:00.0: 0xEF55F6D0 | time gp2 [ 4023.460189] iwlwifi 0000:02:00.0: 0x00000001 | uCode revision type [ 4023.460190] iwlwifi 0000:02:00.0: 0x0000002E | uCode version major [ 4023.460190] iwlwifi 0000:02:00.0: 0x93E59CF4 | uCode version minor [ 4023.460191] iwlwifi 0000:02:00.0: 0x00000321 | hw version [ 4023.460191] iwlwifi 0000:02:00.0: 0x00C89004 | board version [ 4023.460192] iwlwifi 0000:02:00.0: 0x0A05001C | hcmd [ 4023.460192] iwlwifi 0000:02:00.0: 0xA2F93802 | isr0 [ 4023.460193] iwlwifi 0000:02:00.0: 0x00040000 | isr1 [ 4023.460193] iwlwifi 0000:02:00.0: 0x00001802 | isr2 [ 4023.460194] iwlwifi 0000:02:00.0: 0x40417DCD | isr3 [ 4023.460195] iwlwifi 0000:02:00.0: 0x00000000 | isr4 [ 4023.460195] iwlwifi 0000:02:00.0: 0x0A04001C | last cmd Id [ 4023.460196] iwlwifi 0000:02:00.0: 0x00018802 | wait_event [ 4023.460196] iwlwifi 0000:02:00.0: 0x00004A88 | l2p_control [ 4023.460197] iwlwifi 0000:02:00.0: 0x00000020 | l2p_duration [ 4023.460197] iwlwifi 0000:02:00.0: 0x000003BF | l2p_mhvalid [ 4023.460198] iwlwifi 0000:02:00.0: 0x000000EF | l2p_addr_match [ 4023.460198] iwlwifi 0000:02:00.0: 0x0000000D | lmpm_pmg_sel [ 4023.460199] iwlwifi 0000:02:00.0: 0x19071250 | timestamp [ 4023.460199] iwlwifi 0000:02:00.0: 0x14C0E8E8 | flow_handler [ 4023.460257] iwlwifi 0000:02:00.0: 0x00000000 | ADVANCED_SYSASSERT [ 4023.460257] iwlwifi 0000:02:00.0: 0x00000000 | umac branchlink1 [ 4023.460258] iwlwifi 0000:02:00.0: 0x00000000 | umac branchlink2 [ 4023.460258] iwlwifi 0000:02:00.0: 0x00000000 | umac interruptlink1 [ 4023.460259] iwlwifi 0000:02:00.0: 0x00000000 | umac interruptlink2 [ 4023.460260] iwlwifi 0000:02:00.0: 0x00000000 | umac data1 [ 4023.460260] iwlwifi 0000:02:00.0: 0x00000000 | umac data2 [ 4023.460261] iwlwifi 0000:02:00.0: 0x00000000 | umac data3 [ 4023.460261] iwlwifi 0000:02:00.0: 0x00000000 | umac major [ 4023.460262] iwlwifi 0000:02:00.0: 0x00000000 | umac minor [ 4023.460262] iwlwifi 0000:02:00.0: 0x00000000 | frame pointer [ 4023.460263] iwlwifi 0000:02:00.0: 0x00000000 | stack pointer [ 4023.460263] iwlwifi 0000:02:00.0: 0x00000000 | last host cmd [ 4023.460264] iwlwifi 0000:02:00.0: 0x00000000 | isr status reg [ 4023.460278] iwlwifi 0000:02:00.0: Fseq Registers: [ 4023.460282] iwlwifi 0000:02:00.0: 0x0568FC22 | FSEQ_ERROR_CODE [ 4023.460289] iwlwifi 0000:02:00.0: 0x00000000 | FSEQ_TOP_INIT_VERSION [ 4023.460297] iwlwifi 0000:02:00.0: 0xDFFC324F | FSEQ_CNVIO_INIT_VERSION [ 4023.460304] iwlwifi 0000:02:00.0: 0x0000A371 | FSEQ_OTP_VERSION [ 4023.460312] iwlwifi 0000:02:00.0: 0xC338B29A | FSEQ_TOP_CONTENT_VERSION [ 4023.460319] iwlwifi 0000:02:00.0: 0xD9E91E16 | FSEQ_ALIVE_TOKEN [ 4023.460327] iwlwifi 0000:02:00.0: 0xAC99E6BF | FSEQ_CNVI_ID [ 4023.460334] iwlwifi 0000:02:00.0: 0x07665623 | FSEQ_CNVR_ID [ 4023.460342] iwlwifi 0000:02:00.0: 0x01000200 | CNVI_AUX_MISC_CHIP [ 4023.460349] iwlwifi 0000:02:00.0: 0x01300202 | CNVR_AUX_MISC_CHIP [ 4023.460357] iwlwifi 0000:02:00.0: 0x0000485B | CNVR_SCU_SD_REGS_SD_REG_DIG_DCDC_VTRIM [ 4023.460413] iwlwifi 0000:02:00.0: 0x0BADCAFE | CNVR_SCU_SD_REGS_SD_REG_ACTIVE_VDIG_MIRROR [ 4023.460421] iwlwifi 0000:02:00.0: Collecting data: trigger 2 fired. [ 4023.460424] ieee80211 phy0: Hardware restart was requested [ 4024.639366] iwlwifi 0000:02:00.0: Applying debug destination EXTERNAL_DRAM [ 4024.753171] iwlwifi 0000:02:00.0: Applying debug destination EXTERNAL_DRAM [ 4024.817999] iwlwifi 0000:02:00.0: FW already configured (0) - re-configuring [ 4024.829374] iwlwifi 0000:02:00.0: BIOS contains WGDS but no WRDS The output messages from the driver when the system starts are: [ 3.667365] iwlwifi 0000:02:00.0: enabling device (0000 -> 0002) [ 3.670357] iwlwifi 0000:02:00.0: Found debug destination: EXTERNAL_DRAM [ 3.670360] iwlwifi 0000:02:00.0: Found debug configuration: 0 [ 3.670525] iwlwifi 0000:02:00.0: loaded firmware version 46.93e59cf4.0 op_mode iwlmvm [ 3.723845] iwlwifi 0000:02:00.0: Detected Intel(R) Wireless-AC 9260 160MHz, REV=0x324 [ 3.735117] iwlwifi 0000:02:00.0: Applying debug destination EXTERNAL_DRAM [ 3.735250] iwlwifi 0000:02:00.0: Allocated 0x00400000 bytes for firmware monitor. [ 3.780700] iwlwifi 0000:02:00.0: base HW address: a4:c3:f0:6d:9f:7a [ 7.919068] iwlwifi 0000:02:00.0: Applying debug destination EXTERNAL_DRAM [ 8.037667] iwlwifi 0000:02:00.0: Applying debug destination EXTERNAL_DRAM [ 8.104305] iwlwifi 0000:02:00.0: FW already configured (0) - re-configuring [ 8.119477] iwlwifi 0000:02:00.0: BIOS contains WGDS but no WRDS Happy to provide more diagnostics if necessary and to test any fixes, but please cc me as I'm not subscribed. Chris
