Issue with Homegroup and WPA2 security

Hi all have an issue with WPA2 security.

I have always run my wireless network using WEP security and never had any issue at all.
I recently changed the profile to WPA2 Personal as I was told this would improve network security. Updated the settings on all network items (PS3, Wii, 2 x XP laptops, a linux netbook and my sons PC running W7), and all worked fine.

All able to connect to the internet, nero media server working on the PS3 and homegroup working fine on the 2 window 7 pc's.

I then reboot my PC (The main PC, wired to router) and no computers detected in the homegroup, the PS3 cant see any media servers, either windows or nero!!

So I switch off wireless security, and all is good again.
Switch back to WPA2 and everything works.
Reboot my pc and the whole lot goes again!!
All PCs and PS3 etc have full internet access whatever the security setting and filesharing between the 2 XP laptops is unaffected.

It seems to be a conflict between Homegroup and wpa2 security.



Any ideas??

My router is a Linksys wag160n

It's definitely something in the setup that's causing this.

Do you have UPnP enabled on the router? And have you set all machines and devices to AES encryption?

Hi, thanks for the reply.
UPnp is set up on router.
WPA2 mode is TKIP or AES (Can not select just 1)
Manually configured the wireless settings on the PS3 and the other W7 pc to ensure they were both on AES.

Have rebooted the main PC and the settings seem to have held!!, homegroup working and PS3 picking up media servers.

Off to google TKIP vs AES to understand why that would cause an issue.
Hopefully it's fixed, or its back to WEP!

AES and TKIP are encryption types. AES is much more secure and virtually unbreakable. It's used by governments. All machines and devices must use the same encryption standard.

Sounds like it's fixed to me.