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Browser Cache Problems

Problem - any one or more of the following:

· Users cannot see new content, even after they have just posted it.
· Users do not appear to be able to log in.
· Some users report that the light bulbs are not working correctly.

Cause:

This is most likely caused by the web browser drawing pages from either a local disk cache or a cache at the ISP or Firewall level.

Resolution:

A. Internet Explorer:

o Select Tools -> Internet Options -> Temporary Internet Files section
o Click "Settings" and enable the option "Every visit to the page"

NOTE: Now is a good time to limit the number of megabytes that Internet Explorer has to store pages on your hard disk, its default is 1% of your total hard disk size. Consider reducing that down to 10 Megabytes at this time.
o Click "OK"
o Click "Delete Files"
o Click "OK"

B. Netscape:

o Select Edit -> Preferences -> Click the '+' next to "Advanced"
o Select "Cache"
o Menu on the right says "Document in cache is compared to Document on network:"
->"Once Per session"
->"Every time"
->"Never"
o Choose "Every Time"
o Click "OK"

Additional Information:

If you are using a cable modem, please contact your cable modem provider to discuss the page cache that they may be running on the system. Be prepared to use an alternate provider (dial up) as a test of the page cache if they are indeed running one. Many hosts with cache systems claim that they are 'transparent' when that is not the case.

Also know that many large ISP's around the country will run cache servers that only clear out at scheduled intervals. This can affect performance regionally and make content fail to show up correctly for your users in these areas where the cache has not cleared for awhile.


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