Got every survey was expired when sitting at BOS waiting for check in counter to open, using airport free Wi-Fi. Interesting also got every survey did not fit with MyPoints survey. I wonder whether the IP address costs such behaviors.

Also when in a country other than your eReward country, you shoukd not attempt survey, right? I gave a lot of down time on this trip, so doing these crappy surveys help to kill time but I do not dare to attempt in case it could cause the account being locked.