I tried to google before if people experience issues like this and I found this
https://forums.d2jsp.org/topic.php?t=30885377&f=272and this one didn't help the individual but you can try doing the PING and see if it timeout like they suggest
https://forums.d2jsp.org/topic.php?t=72050060&f=272&p=485069172Quote (Giving @ Jan 12 2015 10:59am)
Tried both IE and Chrome as well.
What do you mean exactly when you say reinstall game? Isn't this a browser thing?
it is html.. try closing off the LS window or tab. and re-open it...
if that doesn't work, maybe try ping or trace route on the jsp server and see where it is timing out.. in some cases it is your ISP that has flagged jsp, I've had to call in to my ISP before to have them un-flag jsp.
in some cases sometimes there was a recent automatic update on your system that needs a re-boot of your computer.
also cleandisc to wipe all old internet storage folders/cookies helps too
run>cmd
tracert www.ladderslasher.d2jsp.com
ping www.ladderslasher.d2jsp.com