This is the first time I am experiency problem in blockchain's web wallet. usually I get an email whenever I try to access my web wallet but now I am not getting it.
So just want to make sure if it is me or everyone.
Just try it the moment I read your post.
After I logged on, an email about "Authorize log-in attempt" was succesfully received in my email within less than a minute.
In this case, you can sort out now those reasons you have been think. Just want to share that last week, it tooks about 5 to 10 minutes before I received an authorization email.