cant enjoy with rohan

i have some trubble with rohan games.
1.if i log a clint and use alt+c for change chrector .i got error and clint buged. see picture 1 and 2.
2.when i loged on with 3 clints if 1 clint got dc or other error . if i try to relog again then my 3 clint got
error andcsuddeblt closed. see pic 3
plz check these errors and solves the problims.
i got these errors last 6 month. i use 2 laptop bouth got same errors.
i use fast interner and expensive laptop see pic 4 and 5
wating for reply
anjum