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Subject: Re: rtw88: Guaranteed system freeze with RTL8821CE with RFE 2 type
To:     rtl8821cerfe2 <rtl8821cerfe2@protonmail.com>,
        Larry Finger <Larry.Finger@lwfinger.net>,
        "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
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From:   Andreas Hartmann <andihartmann@01019freenet.de>
Message-ID: <17cc8de6-7e39-8734-260d-2336c8417da0@01019freenet.de>
Date:   Tue, 11 May 2021 21:45:58 +0200
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Hi!

I'm using probably the same device and the same modules here from
Larry's repository. They are working perfectly - much better then any
other existing modules. Absolutely stable and good throughput on even
bad radio conditions.

My device:
04:00.0 0280: 10ec:c821
        Subsystem: 1a3b:3041
        Flags: bus master, fast devsel, latency 0, IRQ 76
        I/O ports at d000 [size=256]
        Memory at f7600000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [40] Power Management version 3
        Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [70] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [148] Device Serial Number 00-e0-4c-ff-fe-c8-21-01
        Capabilities: [158] Latency Tolerance Reporting
        Capabilities: [160] L1 PM Substates
        Capabilities: [170] Precision Time Measurement
        Capabilities: [17c] Vendor Specific Information: ID=0003 Rev=1
Len=054 <?>
        Kernel driver in use: rtw_8821ce
        Kernel modules: rtw_8821ce

on Linux 5.10.27 / self build

I saw you're using network manager - I'm using just wpa_supplicant
(EAPTLS) - nothing else. Maybe that's the problem?
One more thing: I'm on 2.4 GHz / 40 MHz.


Thanks
Andreas