My problems are similar to the issues posted in this thread. http://forums.dlink.com/index.php?topic=5150.0
Everything runs fine for a few days then my connection slows to a crawl, pages wont load and I can not access the setup page.
When this happens I receive the following messages when trying to access the setup/config pages in the router.
Connection: close
if I refresh the page several times it will tell me to try again.. lol... no shlt!

After 5-10 refreshes I end up with a gray background page (like the setup page partially loads) and this in the top left corner.
<script type="text/javascript" src="/utils.j
The only way for me to gain access to the router is to unplug and reboot it.
I wouldn't care so much if I could go back to 1.21 but I am stuck with 1.30 (btw: got it prior to the beta tag otherwise I would have waited.)
Steve