I haven't paid attention to the details... but there are several threads here in TechNet which have dealt with this issue. Try a search.
Also... some of the standard things to check:
have you checked that all the updates for OS, FMS and JAVA are up-to-date. Which versions?
Your security... is it set so that the client can see all files or just those they have accounts for?
Do you have FileMaker only or External authentication?
Have you turned on the sharing privileges for the relevant accounts in the database? Does the admin console show you it as shared?
Thanks Lyndsay. The sharing is working fine for all other client computers/devices of which there are about 7 - 8 connections. This is the first Windows 8 computer attempting to connect. The security/sharing/privilege settings all appear ok, but I will check the Java and FMS version running on the server. The same user login has also been used without any problems on Windows 7 and earlier OS. I have performed a search already in Technet and couldn't find anything, but will try again and see how we go. Thanks again.
Can I suggest that you try and replace the 'Server.pem' file from your windows 8 machine with one from your other working windows 7 machines.
I am not a windows specialist, but on a recent Windows 7 installation of FMPA, I encountered exactly the same symptoms as you describe and I fixed it by replacing this file.
Where is it - I wish I could remember!
Found it! - It's in the FileMaker Pro 11 Folder within Program Files.
Sorry if this is just sending you on a wild goose chase …
Best wishes - Alan Stirling - London UK.
No... sounds like its worth a try. I recall issues with that file in the past. Thanks for the tip.
Thanks again... spot on!