Web browser freezes

[fitzpatrickrn]

Just recently had hard drive replaced under the replacement program, and added 4 GB RAM for a total of 8 and upgraded to 10.8.2
Now my web browser freezes frequently, and I have to quit or force quit MANY times per hour. Everything just freezes. I quit the browser, restart it after a second or 2 and then it works fine again for a while. Very frustrating. I called Apple support and the guy I talked to had zero idea what I was talking about-also frustrating. I tried to change the MTU to manual in networking and tried several settings, to no avail. I'm to the point now where I would willingly pay for a solution if there was one...

BTW, I am not using Ethernet, I am using a wireless connection. Anyone have this experience?

 

[bobtomay]

What browser?
Have you tried a different browser?
Is this happening only on a specific site(s)?
Is this the only app having any issues?

 

[avcall]

Tell us if you're experience was the same but I saw this over the last week as well. Finally got so bad I had to fix it yesterday. Mine didn't matter which browser I was using. Pinging yahoo or google worked fine (0% drops) but other outbound requests were ignored. Put another way, packet captures showed successful DNS queries then lots and lots of outbound syn packets with no response. Still did this after rebooting, stopping/starting wifi, and renewing my DHCP lease.
I should be ashamed but I was in a hurry so I didn't step through proper troubleshooting. I plugged in an ethernet cable and disabled wireless. I then logged into my DHCP server and set a new IP address reservation for the Mac's wireless MAC and set a resolvable hostname for my LAN's DNS server.
When I turned wifi back on and got my new reserved IP, all the connectivity problems went away. ALSO, the prompt in my terminal now says the hostname I set in DNS instead of "User's Mac" or whatever it used to say. I thought that was pretty strange.

Anyway, I hope that's worth something and I'll keep watching this thread; I'd like to know what the deal was. Since nothing I did would have made me think I fixed it. I was just trying to make something else work.