Adhoc Wireless Connection Errors

I have connected two computers wirelessly using an ad hoc (computer-to-computer) connection. The set-up had been running fine all along until errors showed up in the wireless connection status of the host computer. the connection bogged down and the shared folder that I used to access freely from the client computer are now seemingly out of reach. I've tried switching the computers by making the host the client and the client the host, but the the original host computer that showed the errors could not connect to the new host computer.

Any ideas on how I could diagnose the computer and find the source of the errors?

Click HERE to see the errors on the wireless connection status window or just view the attached image.

The window shows a number that is steadily rising at an alarming rate and it even rises to the millions.

The host computer is an ACER with an Atheros AR5005G network adapter and the client is an HP Pavilion with Intel(R) PRO / Wireless3945BG Network Adapter.

The errors are found on the host computer. No such errors are seen on the client.

Thank you in advance.

 

You may want to post this question in the networking & wireless forum or one of the admins can move it.