Every time I restart my computer, after windows updates, etc. it comes back with a strange symptom. After all the start up programs are running, when I use a browser (Chrome or IE) it exhibits intermittent connectivity. It will load and respond normally for 10 - 15 seconds, then Chrome completely freezes. Even the little spinner that indicates it's loading something stops .. you can't switch tabs or do anything for 20-30-40 seconds. Then it 'pops' back to life for another 10 - 15 seconds, then freezes again. In internet explorer, instead of just freezing I get a "no internet connection" warning. The problem seems to have gotten worse and worse over time.
The weird thing is that after a long period of time acting like this, it goes back to normal operations. The pause-freeze-resume cycle lasts hours and hours, yesterday I stopped counting after 8 hours of this behavior. I left the computer on all night and this morning its all back to normal.
I have searched and searched and don't find anything on this topic. I'm deadly afraid to re-start the computer because it will guarantee unusable internet for the rest of the day after I restart it. I did catch a 'glimpse' of an article that dealt with the wireless router connection doing some kind of CRC or security check in the background which my modem maybe can't handle, and it keeps stalling while it waits for a response until it times out. I don't know how to check for this. I can't hard-wire the internet connection to the computer because we had a power surge months ago and my motherboard jack stopped working, I think it's fried.
Any help would be greatly appreciated. Windows home premium 64 bit with a Linksys09916 router connected to a cable modem.