Network error help needed

[FDM]

Last night received this popup on my desktop pc: "Network Error- Another computer on this network has the same IP address as this computer. Contact your network administrator for help resolving this issue. More details are available in the Windows System event log."Contacted Comcast support and was told this is a Microsoft operating system error and to contact Microsoft? - if so why would the error popup tell me to contact Comcast?
Has someone hacked into my account or network and if so what can be done?
Any suggestions or advice would be appreciated.
Frank

 

[mrjimphelps]

Please don't post twice about the exact same issue. I put some suggestions for addressing this situation on your other post. Please delete this post.

 

[FDM]

Sorry about posting to two different areas of the forums - won't happen again. Had thought that members may not look in different areas.

 

[mrjimphelps]

If you click on "Unanswered" or "New Posts" at the top of the screen, you see everything that comes in, regardless of which sub-forum it is posted in.

 

[FDM]

Thanks was unaware of that option