I was playing Pokémon GO recently (on iOS). The game was running fine, and there were no problems whatsoever until I spun a Pokéstop. It didn't come up with anything at all, apart from the error message "Try Again Later".
I did try again later, and I wasn't moving at the time, but I still couldn't get it to spin correctly. This was on every Pokéstop I tried and it lasted more than 24 hours. I can spin it now, but every now and then, it seems to give me a 24 hour ban!
I know that it is not a softban, since I am able to battle gyms, catch Pokémon, place them in gyms and collect my Pokécoins. Also, my Pokémon seem to be coming out of the gyms unnaturally often.
Does anyone know why this is happening and what (if any) possible solutions to this might be?