Workgroup Problem, Please HELP

[Richard]

I have three PC's on one workgroup and wireless router.
Two of the units are wired to the router and can see the
network and other PC's. One laptop is wireless on the
same workgroup, same router, also can see the other pc's
when I click the workgroup.
The problem is, when I click on one of the workgroup PC's
I get the error
""\\workgroup name is not accessible. You might not have
permission to use this network resource. Contact the
administrator of this server to find out if you have
access permissions.""
I have set
NetBios over tcp/ip is enabled on all units.
the browser service is running on all units.
There are no firewalls.
I am logged into all machines as myself and I am on the
admin list
I have guest profiles enabled.

 

[Richard]

Thank you for your response..
I have narrowed my workgroup now to two units.
desktop and laptop. net view \\laptop I get
system error 53 has occurred
when I do this on the laptop to the desktop, I get the
same thing.
when I do this to each unit to themself, I get a finding.

when I type