We are experiencing the same thing across some clients. The strange thing is it only occurs from some internet accesses. Others it works just fine with no tweaking. But it is consistently not working at the same locations. I hate to start saying its the broadband router b/c that gets messy with users and it varies too much.
Any input would be appreciated from someone who has either an explanation or solution.
52 06:08:07.135 01/24/07 Sev=Warning/3 IKE/0xA300005E
Unexpected message (Exchange type 6) while negotiating IKE. Message discarded. SA=I_Cookie=7EAD9866581E8CD9 R_Cookie=CB31BEC2C7B9871F