I'm on the same POI with the same modem.
EDIT: here's the fix that solved it for me:
»Re: [Cable] Teksavvy Cable Constant Modem Restart [SB6120]
EDIT 2: to further troubleshoot, try to borrow a docsis2 modem and see if the connection is stable for a while. I'm sure it's upstream that causes this problem because the aborted status was always on one or two of the channels at most.
To add to what sbrook said, it's the modem losing its mind trying to talk to the CMTS and this comes at random intervals. you have to cleanup every part between you and the main line coming from rogers.
My upstream was borderline, hovering around 53 to 55 dBmv but dropped to 48 immediately after the cleanup as you can see in my post. it has since dropped further to its current 43 /41.you'll notice that your downstream may rise when the problem is solved. mine was at 0 before and now sits at 6.
at first, I too used a splitter and it helped a bit in the short term. but the problem came back later and with a vengeance. curiously, the upstream bonding was turned off for a couple of weeks and the problem disappeared during that time.
1st do a search on dslr and try to find the excel file that logs the SB6120 stats automatically. it helped me get an idea about the frequency of the issue. it seems that your signal fluctuates a lot and this tool will provide a better picture.
two, don't expect the first few techs to know anything about it. the first two completely ignored the logs and just checked the signal on the spot, said it was good at the time and ran off quick.
it took three tries before an experienced tech told me that he replaced the following at the tap:connector, spigot, jumper & trap W. Do note that applies to apartments btw.
I also had the cable coming from the riser into my unit replaced and found that it had a few nicks from the staple guns they use. that may interfere with the signal too.
good luck man, It has taken me a multiple months to get it sorted and I know how annoying it can be.
if you have any questions don't hesitate to ask.
PS: I'm on upstream 64Qam now and you're not. strange!--
Proud Teksavvy customer since 2007