HELP cant destroy or build blocks SOLVED

Hello i can not destroy or build any blocks on my server. I have tried going to vanilla and that doesn't work ether. i have port forwarded and stuff like that. PLZ HELP!

SOLVED

-stago

 

move away from spawn
or edit spawn_size in server.properties

 

changed to 1. dont work

anyone know? i tried vanilla again. dont work. i port forwarded again. no work eather. PLEASE HELP!

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

how you solved it ? what was the problem?

 

I am having the exact same problem on my server, I tried changing the spawn-protection to a low number and walking beyond, but no luck.

Update - I found another post about a similar thing in which TuRmoiLxx suggested removing all single player mods (had single player commands installed), so I reverted back to my backedup .jar and now it works!

 

i uninstalled my mods then it worked. I had single player commands 2 maybe it is just that

 

The same bug happens to me. My Minecraft name is Zolacolor, my password is very basic. I have this problem on ALL servers. I am an OP on one (vanilla), and admin on another... I had Zombe modpack, TooManyItems and ModLoader. Instinctively I removed all these mods, and made a fresh .jar (by deleting Minecraft in Application Support > Minecraft [I'm on a Mac]) then I could destroy blocks fine. Yet after a few weeks, the same problem occurred. And now I'm here.
Please help.
Zolacolor
EDIT: I think it was TooManyItems. On their forum page, there is an updated version with

Thanks!