In recent days, I kept cannot local access my home cloud. I have tried to delete the stored password, reset the wd my home cloud and many many approaches from internet, it still says my passwords is incorrect even I am very sure I input it correctly. I am frustrated from this. could anyone help with this.
2, Also in my public folder, I frequently see some suspicious .exe file is there. I tried to set port forwarding but failed. I am using Linksys AX4200 router. Could anyone can help with this. I do not want my NAS to be access so easily from public.
You are conflating several issues without revealing very much on any of them, I would suggest narrowing down to one or two and contact WD Tech support by chat or by ticket on issues that do not involve router support because there are thousands of routers in the world and no 3rd party will support each one specifically, and WD Tech explicitly stated in the KB (knowledge base) that they don’t support specific router questions.
Local access password can be reset from the webapp. It is not apparent what reset you are referring, the My Cloud Home (MCH) owner or user reset or local password reset.
It is not apparent if you have deleted the old credential for MCH access from Windows credential manager or others depending on your desktop OS.
When troubleshooting credential problems, it is often easier to try a different PC, Mac or Linux on the network using different operating systems with different file explorers and browsers, instead of just one PC which couldn’t work properly for you.
Unlike older generation of My Cloud, the MC Home has no root access by anyone, not even the owner and certainly not remotely, so there is no way to hack it remotely unless somehow physical access to the hard disk can be done (impossible remotely).
The Public folder is accessible by anyone on your local subnet (LAN side of your router). I would suggest you scan all the PCs on your network for malware.
Linksys AX4200 port forwarding (and UPnP) is often broken, it is a poor router for tech support, but that is not what your primary complaints (suspicious files and no local access) are about.
This is a Windows problem, quite often it is one of these two:
somehow the Microsoft password didn’t match the local password. Enter Settings, lock screen, cancelled the pin code, asked to unlock via a password instead and entered the Microsoft password.
search for Control Panel, Local Security Policy, Security Options, Network security: LAN Manager authentication level — then change to “Send NTLMv2 response only” A reboot is often required to see effect (or restart SMB client if you know how to restart the SMB service).