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slow browsing with proxy MS ISA 2006

Dear All,

we have corporate network , working with proxy gateway as MS ISA 2006 , And switches and wireless of CISCO,

we face regularly problem with slow internet browsing suddenly for all MAC pc / Air book.


If any one can guide me for this


Thank you


Princeali

MacBook Pro

Posted on Jun 25, 2013 2:42 AM

Reply
9 replies

Jun 25, 2013 6:59 AM in response to asjhabua

From the menu bar, select

System Preferences Network

If the Network preference pane is locked, click the lock icon in the lower left corner and enter your password to unlock it. Then click the Advanced button and select the Hardware tab. Select

Configure: Manually

and

MTU: Custom

Enter an MTU value of 1280.

Click OK and then Apply. Test.

You must apply the change before it takes effect.

If the issue is resolved, experiment with higher MTU values until you find the highest one that works. The higher the MTU, the better the network interface will perform.

If changing the MTU has no effect, restore the Configure setting to Automatically.

Jun 29, 2013 11:43 PM in response to Linc Davis

yes, i can bypass the proxy by doing direct allow the IP from the Firewall, i have 1 MAC book pro. with same setting that directly allowed from firewall, and some of MAC PC that is working with Proxy setting, when this happen, almost all MAC PC / Laptop, that are with proxy or without proxy , start slow browsing, after few min. it back to normal.



thank you

Jun 30, 2013 11:27 PM in response to asjhabua

Please read this whole message before doing anything.

This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, or by a peripheral device.


Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Ask for further instructions.

Safe mode is much slower to boot and run than normal, and some things won’t work at all, including sound output and Wi-Fi on certain iMacs. The next normal boot may also be somewhat slow.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.


Test while in safe mode. Same problem?


After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.

slow browsing with proxy MS ISA 2006

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