slow_rez

If things around you remain grey for a long time, or attachments take a long time to pop into position (clothing or other items float around you), this is essentially because the data has not yet been sent to your viewer. There are a number of possible causes, and a number of solutions or at least work-arounds:

• Some other program on your computer may be interfering with your viewer's connection to SL, like a firewall or anti-virus. Try disabling them temporarily, to see if things improve. If they do, you have isolated the problem. Whitelisting the viewer, cache folder, and settings folder will probably help. You should do this from scratch, and even if you already have whitelisted in the past.

• If you suddenly experience this problem when updating to a new viewer, the problem is most often your antivirus. Whitelisting the viewer, cache folder, and settings folder will probably help. You should do this from scratch, and even if you already have whitelisted in the past.

• If you suddenly experience this problem when updating to Firestorm 6.4.21 (or later) from 6.4.13 (or earlier), and you have already whitelisted the viewer from scratch (see above), you may need to adjust your Preferences > Graphics > Hardware Settings > Image decode concurrency. The default is 0. Try changing it to 1 if you are having problems.

• If you have Webroot SecureAnywhere antivirus installed, refer to this page.

• Power down your router and/or modem. This generally means unplugging it from the power source. Leave them disconnected for at least a full minute before reconnecting. Wait for them to complete the power up sequence, then reboot your computer.

• Teleport out, then back in.

• The region is badly lagged (many avatars present, too many scripts running, etc.) and so the region server is using all its time processing and has very little time left over to deliver textures and other data to you. The best way to cope with this is to reduce the demand you make; in other words, reduce your draw distance, even to 12m or less, and wait until textures and objects have loaded before you increase it again.

• You are experiencing packet loss or, more generally, have a poor network connection. Or your bandwidth slider may be set too high. Bring up the stats bar with Ctrl-Shift-1 and check Packet Loss and Ping Sim. Ideally, packet loss should be 0.0%, and Ping Sim under 200ms.

• Determine optimal bandwidth: refer here.

• You can also try to have less textures draw all at once by reducing draw distance when you teleport. You can do this manually, or make use of the built in Progressive Draw Distance function.

• HTTP fetching may be overloading your router; please try the suggestions given here; if they do not help, revert the changes made then return to this page and continue.

• Another possibility is that DNS look-up is failing. Try changing DNS to google; see this page for details.

• It has been reported that on Windows, the Aero background theme will also lead to textures refusing to rez, due to how much memory this feature consumes. Uninstalling that should help.

• If textures remain blurry or grey, make sure that Preferences → Graphics → Hardware Settings → Enable Lossy Texture Compression is off.

• If mesh items, specifically, never rez, see Mesh Issues.

• Several creators recommend specific settings in order for you to be able to better see their products. Sadly, some of these recommendations will lead to many people crashing more or having other issues, including very slow rez. Please see this page for more.