I need urgent solution to a problem. We have two links in my office. when one is down and switch to the backup, we find it difficult accessing yahoomail.com, it keeps displaying page cannot to display. but when i connect it directly to a window system it works fine. But on Mikrotik it can’t. On the second link no issue through mikrotik.
See Feklar’s replies in that thread. Probably the same issue - the router still has a connection open and puts traffic out the dead link. Clear the connection table as he said and try again.