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Common problems for Connectivity Issues
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HP Recommended
HP Slimline Desktop - 290-a0045m
Microsoft Windows 10 (64-bit)

Yesterday, I posted the following. I received some instructions, followed them all and only made the situation worse. Now I cannot access computer A from either of the other two computers. Help me to simply use the printer from all the computers.  Perhaps I can eliminate credentials and any other permissions that are in the way. The network worked fine with Home group and its replacement but each update makes things more complicated.
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i have three computers. They can all see each other on Windows Explorer. Computer A is connected to the router via ethernet. The others use WiFi.
Computers A and B can access each other.
Computers B and C can access each other.
Computer A can access Computer C but C can't access computer A. This is a real problem because the printer is connected to A and can't be accessed by C.

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