Client lag spikes every 10 seconds

[Rolig Loon]

Chances are good that it is something very close to home.  If you are on wireless, for example, there could be a source of interference nearby that's messing with your signal.  Cell phones will do it.  So will garage door openers, all sorts of "smart" equipment, fluoresecent light fixtures, nearby power lines, and the guy next door testing a TARDIS in his basement.  If you're using a public hub, you can be losing bandwidth to other users too.  Wireless is a lousy choice for SL.

If you're not using wireless, your router could be messing up, or your ISP could be having problems.

Another good possibility is your anti-virus program.  Some AV programs -- Norton is notorius -- will treat any downloaded file as a threat and have to check it.  If your AV program is taking time to check every time your viewer updates your texture cache, you can lag badly.  See http://wiki.phoenixviewer.com/antivirus_whitelisting for information about how to whitelist your viewer (and other SL plugins).

[Rolig Loon]

Chances are good that it is something very close to home.  If you are on wireless, for example, there could be a source of interference nearby that's messing with your signal.  Cell phones will do it.  So will garage door openers, all sorts of "smart" equipment, fluoresecent light fixtures, nearby power lines, and the guy next door testing a TARDIS in his basement.  If you're using a public hub, you can be losing bandwidth to other users too.  Wireless is a lousy choice for SL.

If you're not using wireless, your router could be messing up, or your ISP could be having problems.

Another good possibility is your anti-virus program.  Some AV programs -- Norton is notorius -- will treat any downloaded file as a threat and have to check it.  If your AV program is taking time to check every time your viewer updates your texture cache, you can lag badly.  See http://wiki.phoenixviewer.com/antivirus_whitelisting for information about how to whitelist your viewer (and other SL plugins).

[Peggy Paperdoll]

Everything Rolig mentioned is very possible.  But, the problem might be as simple as the sim (or region) that you are on is experiencing problems......such as a haywire script.  Try logging into another sim (a couple of Linden Lab maintained sims are Pooley and Aqua).  If the problem persists then it's a good bet it's something on your end.  If not then the sim that you are having the problem in needs a restart.  For a mainland sim submit a support ticket requesting a restart (if you are premium you can open a Live Chat session and request the restart...that method is quit a bit quicker).  For a private estate, contact the sim owner (or a manager with rights to restart a sim).