I  want to make sure: Send/Recve Errors and Lost Packets on Ping - HOW BAD?

Greetings!
Still relatively new to MBP and Mac OS - ramping up fast on account of having to troll Forums for info about MBP's not so reliable WiFi performance...
*ANOTHER QUESTION:* I get a lot of Send and Receive errors - as monitored by Network Utility.app when on my wireless network. Actually 10-20 after just 1/2 hour of WiFi activity. Going thru a Linksys WRT54GL router into a HughesNet satellite modem. AND, if I PING another device on my wireless network, I often get LOST PACKETS. All an indication that at least in my case - and I hear the same many Forums denizens complain about similar issues.
N*ow, as I download important stuff* through the wireless network - say, the current many updates/upgrades for Mac OS X and the MBP, do such occurrences render the downloads unreliable? I do not get any message of incomplete download or such as Install such wirelessly downloaded upgrades, but I am concerned about applying upgrades which would have been damaged by such xmission errors. OR, perhaps errors are flagged and "corrected" somehow??
Meanwhile, I have recently started to download -especially upgraged - via a direct LAN connection between my MBP and the satellite modem. However, seems to be a setback to me, especially since my most mundane among my Win machines have no trouble communicating over the wireless network.
I'll appreciate assistance!
- Roger T

I don't know about wireless, as I only have dial up. And I have an iBook and not a MBP. But I frequently lose internet connection part way through a software update, probably due to the local antiquated phone lines. About all that happens is that the download has to be done over completely. It never picks up where it left off, so I assume the partial download is just gone as if it had never been downloaded. I would guess the same would be true of wireless downloads.
Good luck!

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