My MF634Cdw gets unreachable through wifi in 2 minutes. Printer says it's connected and signal is good, but ping gets unreachable from other machines. If I go to the printer settings and do "Ping Command" to the other host, the printer gets reachable again. Once I do that, I can print without problem, but only for 2 minutes. After 2 minutes, it gets unreachable again. I have 240 minutes for auto sleep, and wifi energy save mode is disabled.
It has similar symptom since I purchased it 5 years ago, but at first it was only once in a while I had to reboot the printer. Now I have to go to the printer and do "Ping Command" every time. Even restarting the printer doesn't help anymore.
I suspect the wifi module is broken. Is the wifi module on MF634Cdw replaceable?
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Whatever is occurring, It's likely related to your network, hardware or settings and not the printer.
Start by telling us more about your wireless network. What router brand/model are you using? Did your ISP supply it, or is it something you purchased?
Is your wireless dual band. Are you using the same SSID names for 2.4/5G networks?
Have you assigned a static IP to the printer?
What are the version and builds of the operating system(s) you are using? Windows/Mac
I'm not under the impression your network adapter is faulty at this point.
Bay Area - CA
~R5 C (220.127.116.11) ~RF Trinity, ~RF 100 Macro, ~RF 100~400, ~RF 100~500, +RF 1.4x TC, +Canon Control Ring, BG-R10~DxO PhotoLab Elite ~DaVinci Resolve ~Windows11 Pro ~ImageClass MF644Cdw ~Pixel6 ~CarePaks Are Worth It
> What router brand/model are you using? Did your ISP supply it, or is it something you purchased?
Google Nest wifi, my own.
> Is your wireless dual band. Are you using the same SSID names for 2.4/5G networks?
Same SSID for both 2.4/5G and can't separate
> Have you assigned a static IP to the printer?
> What are the version and builds of the operating system(s) you are using? Windows/Mac
Multiple devices, Linux, Chromebook, Windows10, Android phones. All can't print once the symptom appears, and everything recover once I do "Ping Command" from printer.
I have over 30 wifi devices at home including many 2.4G only devices and only MF634Cdw has this behavior.
09/26/2023: New firmware updates are available.
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07/31/2023: New firmware updates are available.
05/31/2023: New firmware updates are available.
05/18/2023: New firmware updates are available.
03/30/2023: New firmware updates are available.