Yes, including my personal wiki on another Raspberry Pi, all with 2-5ms
None of this may help, but you can use it as a checklist.
ifconfig on Pi reports the IP address you are trying to ping (wlan0) assuming wifi
Connecting Pi via ethernet, ifconfig and trying to ping then
Pinging another device from the Pi itself
The MM software updates. Clock, calendar, weather, etc?
Logically, if the only thing you can’t do is ping or connect to the Pi, then something is wrong on the software side, whether a corruption, an edit or a failed installation of the software or dependencies during the upgrade process. The answer in that case, with the most success, is a manual installation, IMHO. You can continue to troubleshoot, which could take a long time, or you can know in less than an hour. You will not lose anything in doing this.
I think its the power cable its an bad one… sometimes i see a flash on the top right
The “flash on the top right” is telling you that you have insufficient power going to the Pi. Standard power for the Pi is 5V 2.0A to 5V 2.5A. Are you using a power adapter or are you using a USB cable from a USB port?