problem with vpn ssl frequent disconnects and rdp sessions can someone recommend firmware#

we are having nothing but SSL vpn problems since a clean install of 5.2.6. ( we were on 5.2.4) Can someone recommend the most stable build for our 100d? as I will probably be re imaging the 100d with a older firmware this evening. But am not sure which?

anyone have any suggestions as to which one is best to load?

I have a ticket open for the ssl vpn issue but users are having a fit and i don't think i can wait for support to figure something out.

5.0.12? 5.2.0?

anyone having issues and loaded an older version that helped?