MacBook WiFi stops working after a while connected to WiFi extender

[matetoes]

I set up a router (Verizon FIOS G1100) at my dorm with the upstream being the uni network (eduroam) so that I can get my Google Home Mini to work and iMazing’s automatic iPhone backups to work over WiFi (usually, the devices wouldn’t be able to discover each other since eduroam doesn’t have UPnP or something). I basically did what this Reddit comment suggested, and everything works perfectly except after ~20-30 mins or so, my MacBook’s WiFi suddenly slows to a crawl and, shortly after, stops working. It gets a bit weird: ping can’t connect to IP addresses on the LAN (or the WAN; for example, ping google.com fails) (ping 127.0.0.1 works, though), browser tabs crash, the network page in system preferences takes a while to load, and when I try to shut down, some programs (e.g., Spotify) hang and I have to force quit them. However, after rebooting, everything works for another ~20-30 mins, and then it happens again. This whole conundrum does not occur on non-extender networks (e.g., eduroam). I feel like this is a software problem because I remember having a similar issue at home (I connected my computer via Ethernet to my extender and, after some time, it too would have WiFi not working and programs freezing up) and my phone connects the whole time to the router with no issue. Any pointers on how I could go about debugging/fixing this?

Btw, I got this kernel panic by waiting some time after the WiFi stopped working and attempting to reboot (it seems to get slower and slower after the WiFi stops working until it, I assume, just kernel panics on its own, which is why it tells me it crashed overnight when I turn it on for the first time in the morning). Don’t know if it will be useful or not, but here it is:

panic(cpu 4 caller 0xffffff80163fe9fe): watchdog timeout: no checkins from watchdogd in 302 seconds (331 totalcheckins since monitoring last enabled), shutdown in progress
Backtrace (CPU 4), Frame : Return Address
0xffffffa0862f3c00 : 0xffffff801308cfdd
0xffffffa0862f3c50 : 0xffffff80131d3fd3
0xffffffa0862f3c90 : 0xffffff80131c45ca
0xffffffa0862f3ce0 : 0xffffff8013031a2f
0xffffffa0862f3d00 : 0xffffff801308c7fd
0xffffffa0862f3e20 : 0xffffff801308caf3
0xffffffa0862f3e90 : 0xffffff801389ce34
0xffffffa0862f3f00 : 0xffffff80163fe9fe
0xffffffa0862f3f20 : 0xffffff80163fe2ec
0xffffffa0862f3f50 : 0xffffff801476565f
0xffffffa0862f3fa0 : 0xffffff801303113e
      Kernel Extensions in backtrace:
         com.apple.driver.watchdog(1.0)[4CFADD2A-613E-320D-AD14-9C9379E87CB7]@0xffffff80163fc000->0xffffff80163fefff
         com.apple.driver.AppleSMC(3.1.9)[41EE0F43-5968-345F-9A44-9C865EA40A7F]@0xffffff8014756000->0xffffff801476efff
            dependency: com.apple.driver.watchdog(1)[4CFADD2A-613E-320D-AD14-9C9379E87CB7]@0xffffff80163fc000->0xffffff80163fefff
            dependency: com.apple.iokit.IOACPIFamily(1.4)[59A305C2-E322-3EA6-B8DB-475512053CDE]@0xffffff8015644000->0xffffff8015645fff
            dependency: com.apple.iokit.IOPCIFamily(2.9)[4E85D41F-6AD7-3C24-911C-A8B80B599F86]@0xffffff8015b6c000->0xffffff8015b94fff

Process name corresponding to current thread: kernel_task
Boot args: kext-dev-mode=1,amfi_get_out_of_my_way=0x1

Mac OS version:
20G165

Kernel version:
Darwin Kernel Version 20.6.0: Mon Aug 30 06:12:21 PDT 2021; root:xnu-7195.141.6~3/RELEASE_X86_64
Kernel UUID: C2591F4E-EE82-33CC-8C59-DB81D9AD80DD
KernelCache slide: 0x0000000012e00000
KernelCache base:  0xffffff8013000000
Kernel slide:      0x0000000012e10000
Kernel text base:  0xffffff8013010000
__HIB  text base: 0xffffff8012f00000
System model name: MacBookPro14,3 (Mac-551B86E5744E2388)
System shutdown begun: YES
Panic diags file available: YES (0x0)
Hibernation exit count: 0

System uptime in nanoseconds: 15521631647992
Last Sleep:           absolute           base_tsc          base_nano
  Uptime  : 0x00000e1de957401f
  Sleep   : 0x000009b38437cb7a 0x0000000088c865f1 0x0000092bece81603
  Wake    : 0x000009b390f41019 0x0000000088da98c2 0x000009b38b66bf15
last started kext at 10667459085426: >usb.cdc.acm    5.0.0 (addr 0xffffff7fadba8000, size 8192)
last stopped kext at 10831505695218: >!UAudio    405.39 (addr 0xffffff7fadbac000, size 315392)
loaded kexts:
com.google.drivefs.filesystems.dfsfuse    45.3.0
com.Cycling74.driver.Soundflower    2
com.objective-see.lulu    1.2.3
@filesystems.smbfs    3.6.1
@fileutil    20.036.15
@filesystems.autofs    3.0
>!AHIDALSService    1
>AGPM    122.1
>!APlatformEnabler    2.7.0d0
@kext.AMDFramebuffer    4.0.6
>X86PlatformShim    1.0.0
@kext.AMDRadeonX4000    4.0.6
@kext.AMDRadeonServiceManager    4.0.6
>AudioAUUC    1.70
>!AGraphicsDevicePolicy    6.3.5
>!AUpstreamUserClient    3.6.8
>!AHDA    283.15
@AGDCPluginDisplayMetrics    6.3.5
>pmtelemetry    1
|IOUserEthernet    1.0.1
>usb.!UUserHCI    1
>!A!IKBLGraphics    16.0.5
>SMCMotionSensor    3.0.4d1
>!A!IPCHPMC    2.0.1
|IO!BSerialManager    8.0.5d7
@Dont_Steal_Mac_OS_X    7.0.0
>!AHV    1
>!ADiskImages2    1
>AGDCBacklightControl    6.3.5
>!A!ISlowAdaptiveClocking    4.0.0
>!AMuxControl    6.3.5
>!AEmbeddedOSSupportHost    1
>eficheck    1
>!AGFXHDA    100.1.433
>!AMCCSControl    1.14
@kext.AMD9500!C    4.0.6
>!A!IKBLGraphicsFramebuffer    16.0.5
>!AThunderboltIP    4.0.3
>!AFileSystemDriver    3.0.1
@filesystems.tmpfs    1
@filesystems.hfs.kext    556.100.11
@BootCache    40
@!AFSCompression.!AFSCompressionTypeZlib    1.0.0
@!AFSCompression.!AFSCompressionTypeDataless    1.0.0d1
>!ATopCaseHIDEventDriver    4050.1
>AirPort.BrcmNIC    1400.1.1
@filesystems.apfs    1677.141.2
@private.KextAudit    1.0
>!ASmartBatteryManager    161.0.0
>!AACPIButtons    6.1
>!ARTC    2.0
>!ASMBIOS    2.1
>!AACPIEC    6.1
>!AAPIC    1.7
@!ASystemPolicy    2.0.0
@nke.applicationfirewall    311
|IOKitRegistryCompatibility    1
|EndpointSecurity    1
@kext.triggers    1.0
@kext.AMDRadeonX4100HWLibs    1.0
@kext.AMDRadeonX4000HWServices    4.0.6
>DspFuncLib    283.15
@kext.OSvKernDSPLib    529
|IO!BHost!CUARTTransport    8.0.5d7
|IO!BHost!CTransport    8.0.5d7
|IOAVB!F    940.4
@plugin.IOgPTPPlugin    985.2
|IOEthernetAVB!C    1.1.0
>X86PlatformPlugin    1.0.0
>IOPlatformPlugin!F    6.0.0d8
@!AGPUWrangler    6.3.5
|IOSlowAdaptiveClocking!F    1.0.0
>usb.IOUSBHostHIDDevice    1.2
>!AGraphicsControl    6.3.5
>!A!ILpssUARTv1    3.0.60
>!A!ILpssUARTCommon    3.0.60
>!AOnboardSerial    1.0
|IOSerial!F    11
>!AHDA!C    283.15
|IOHDA!F    283.15
|IOAudio!F    300.6.1
@vecLib.kext    1.2.0
>!ABacklightExpert    1.1.0
|IONDRVSupport    585.1
>!ASMBus!C    1.0.18d1
@kext.AMDSupport    4.0.6
|IOAccelerator!F2    442.9
@!AGraphicsDeviceControl    6.3.5
|IOGraphics!F    585.1
>!AThunderboltDPOutAdapter    8.1.4
>usb.cdc.ncm    5.0.0
>usb.cdc.ecm    5.0.0
>usb.!UiBridge    1.0
>usb.cdc    5.0.0
>usb.networking    5.0.0
>usb.!UHostCompositeDevice    1.2
>!AThunderboltDPInAdapter    8.1.4
>!AThunderboltDPAdapter!F    8.1.4
>!AThunderboltPCIDownAdapter    4.1.1
>!ABSDKextStarter    3
|IOSurface    290.8.1
@filesystems.hfs.encodings.kext    1
>!AActuatorDriver    4440.3
>!AHIDKeyboard    224
>!AMultitouchDriver    4440.3
>!AInputDeviceSupport    4400.35
>!AHS!BDriver    4050.1
>IO!BHIDDriver    8.0.5d7
>!AHSSPIHIDDriver    61
>!AHSSPISupport    61
|IO80211!F    1200.12.2b1
|IOSkywalk!F    1
>mDNSOffloadUserClient    1.0.1b8
>corecapture    1.0.4
>!A!ILpssSpi!C    3.0.60
>!AXsanScheme    3
|IONVMe!F    2.1.0
>!AThunderboltNHI    7.2.8
>!AHPM    3.4.4
|IOThunderbolt!F    9.3.2
>!A!ILpssI2C!C    3.0.60
>!A!ILpssDmac    3.0.60
>!A!ILpssI2C    3.0.60
>!A!ILpssGspi    3.0.60
>usb.!UXHCIPCI    1.2
>usb.!UXHCI    1.2
>usb.!UHostPacketFilter    1.0
|IOUSB!F    900.4.2
>!AEFINVRAM    2.1
>!AEFIRuntime    2.1
|IOSMBus!F    1.1
|IOHID!F    2.0.0
$!AImage4    3.0.0
|IOTimeSync!F    985.2
|IONetworking!F    3.4
>DiskImages    493.0.0
|IO!B!F    8.0.5d7
|IOReport!F    47
|IO!BPacketLogger    8.0.5d7
$quarantine    4
$sandbox    300.0
@kext.!AMatch    1.0.0d1
|CoreAnalytics!F    1
>!ASSE    1.0
>!AKeyStore    2
>!UTDM    511.141.1
|IOUSBMass!SDriver    184.140.2
|IOSCSIBlockCommandsDevice    436.140.1
|IO!S!F    2.1
|IOSCSIArchitectureModel!F    436.140.1
>!AMobileFileIntegrity    1.0.5
@kext.CoreTrust    1
>!AFDEKeyStore    28.30
>!AEffaceable!S    1.0
>!ACredentialManager    1.0
>KernelRelayHost    1
|IOUSBHost!F    1.2
>!UHostMergeProperties    1.2
>usb.!UCommon    1.0
>!ABusPower!C    1.0
>!ASEPManager    1.0.1
>IOSlaveProcessor    1
>!AACPIPlatform    6.1
>!ASMC    3.1.9
|IOPCI!F    2.9
|IOACPI!F    1.4
>watchdog    1
@kec.pthread    1
@kec.corecrypto    11.1
@kec.Libm    1

 

[matetoes]

Nevermind; somehow, I switched to a different router (still using bridge mode), and it no longer has the issue.

 

[matetoes]

Ok, actually, even with the new router, it turns out that the WiFi still eventually stops working, just at pretty random intervals instead of every 20-30 mins. Any pointers? My new router is a Linksys RE6500.