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Internet really slow after upgrading to Lion from Leopard!

Yesterday I upgraded to Lion from Leopard on my 2007 iMac (2.4GHz Intel Core 2 Duo), and everything seems to be running very smooth, except the internet is painfully slow! I know it is not an ISP or network issue because the internet on my iPad is running fast as ever on the same network.


Anyone else have this problem and know how to fix it?

iMac, Mac OS X (10.7)

Posted on Jul 25, 2011 6:55 AM

Reply
98 replies

Nov 30, 2011 3:37 PM in response to Philly_Phan

Thre is a problem for sure but it actually works itself out, if I remember correctly the exact sme thing happened with leopard upgrade, but I'm not arsed to look throu the posts.


Personally I just restarted my modem a few times, it didn't work straight away but as I said with a few network diagnostics and assit me's in the preferences. Yes it's annoying when it happens and no I don't know the reason, but at least be comforted that it won't last longer then a few days.


That's all I can say.

Feb 26, 2012 8:14 AM in response to chatkins82

You know I am having similar problems, I upgraded my macbook pro first and noticed the problem among others (a very poor battery life and a loud constantly running fan), but thought nothing of it. A few months later I upgraded my iMac and am still experiencing the slow internet problem. My wife finds the issue extremely annoying, so it is now an issue for me. Luckily and I am sad to say it I have solved this problem. Thanks to Bootcamp I can run windows7 and the internet runs perfectly. My wife is just as distressed as I am about the fix. years ago we switched to mac for the simplicity and the fact that the OS seemed to run flawlessly everytime, sadly those days seem to be over 😟

Mar 21, 2012 2:37 PM in response to Philly_Phan

Philly_Phan wrote:


Do you feel better now that you proved a point?

If someone quoted Tim Cook in an article and put asterisks over an innocuous word, I think a number of people might presume he'd been swearing in his statement. I'm sure he wouldn't want that sort of unfair label attributed to him, and nor would I. I've noticed your posts, you're an intelligent person on these forums, you can understand my point right?

Feb 15, 2015 10:15 AM in response to chatkins82

After trying all versions of OS X on my Macbook Pro I determined that for the best use of resources, and security while connected to the internet, the highest version of OS X that would be acceptable was 10.7.5. While 10.10.x (the freebee) was a total joke, it sends so much info to remote servers about my files, in the background without notification to me as to what it was sending or why it quickly became a security issue (I am in the music industry and produce my own and edit others work on my Mac, so sending any info to someones server without my authorisation is unacceptable.). Not to mention that while having 8G of ram on this Mac I only had about 3G usable for me to do my work while using 10.10.xx . I progressively downgraded doing a "clean reformat and install" of each version of OS X until I settled on 10.7.5. But this version of OS X is sending stuff to Apple and trying to simulate a DoS attack back to Apple servers who in kind return port scans. It is not my internet provider, not my router, not my cable modem, not my firewall it is infact Apple Inc trying to scan my system for something they can use to benefit them, for future sales or whatever BS reason they give. Even with that they are much more acceptable than MicroScam... oops MicroSoft. here is the log file from my firewall, doing a whois on all ip addresses the OS is contacting Apple who inturn sends back a port scan to access this unit (it's yelling 'Here I am!' so Apple can scan this unit without authorisation, notification or confirmation from the owner Me)

TCP- or UDP-based Port Scan 3 Sat Feb 14 13:06:37 2015 72.198.18.233:49547 68.105.28.11:53
SYN Flood 1 Sat Feb 14 13:15:52 2015 17.172.239.146:5223 192.168.0.12:61552
TCP- or UDP-based Port Scan 1 Sat Feb 14 13:15:54 2015 72.198.18.233:27493 68.105.28.12:53
SYN Flood 9 Sat Feb 14 13:17:08 2015 173.194.79.188:5228 192.168.0.12:61620
LAN-side UDP Flood 2 Sat Feb 14 13:31:55 2015 224.0.0.251:5353 192.168.0.4:5353
TCP- or UDP-based Port Scan 1 Sat Feb 14 13:32:40 2015 72.198.18.233:50269 68.105.28.12:53
SYN Flood 7 Sat Feb 14 13:33:56 2015 17.172.233.134:5223 192.168.0.12:61940
TCP- or UDP-based Port Scan 1 Sat Feb 14 13:36:31 2015 72.198.18.233:50848 68.105.28.12:53
SYN Flood 91 Sat Feb 14 13:58:42 2015 17.172.232.198:5223 192.168.0.12:62497
TCP- or UDP-based Port Scan 1 Sat Feb 14 13:59:20 2015 72.198.18.233:58023 68.105.28.12:53
SYN Flood 438 Sat Feb 14 15:34:21 2015 17.172.239.39:5223 192.168.0.12:64545
TCP- or UDP-based Port Scan 1 Sat Feb 14 15:34:53 2015 72.198.18.233:61714 68.105.28.12:53
SYN Flood 122 Sat Feb 14 15:59:50 2015 17.143.160.88:5223 192.168.0.12:65127
TCP- or UDP-based Port Scan 3 Sun Feb 15 11:16:58 2015 72.198.18.233:51891 68.105.28.12:53


You can say, "It's not Apple" all day and we both know you would be lying. Looking at the evidence this is Apple sending a signal beacon to the mother ship and awaiting further instructions, otherwise the owner would be involved giving authorisation or confirmation for this function or at least a notification. I have ALL auto update, keep updated and check for update options turned off. Had it not been for my firewall catching and logging all traffic, this transfer would go unnoticed except for a slow down of internet speeds... hum, it must be the service provider.... nope, just Apple, its in the TOS you accepted when you installed, or booted your system the first time.

Internet really slow after upgrading to Lion from Leopard!

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