Second IP address for S33

You don't need a second WAN / public IP address from an ISP in order for LAG / LACP / link bonding to be able to function. All you need is for the equipment to be able to support it, the correct settings in the U.I's, and the correct ethernet cabling configurations. Same for dual WAN setups. No additional public IP's are needed.

I don't believe that LAG is going to help you in this case anyway. Something else is going on. Perhaps the speeds coming from the Comcast system are slow in the first place for some reason.

For a test, what speed do you get with your wife's computer connected directly to the 2.5 gig port on the S33 cable modem (no router in the mix) ?

And BTW. If this is a business class account, then you really should be posting in their Business Class help forums. This forum is for their residential class service.

I just lost my entire response. Ok, all equipment is 2.5 gig ready using cat 8 cable. I will try my wife’s and two other computers later today directly connected to the router. I checked last week at lots of packet loss on bonded channel 37 downstream. Later that improved but still

some. And the number of errors

thrown was down. S/n rations later last week were in 39/40 to 44 db. Checked the tap, all was right and I retightened after disconnecting. Connecting to s33 setup page is sometimes a pain, because I have to change the subnet mask on my computers to one I haven’t seen other providers use before it will open the page. And Arris says that the subnet mask for this modem can’t be changed but I would guess Comcast could change it when it provisions the modem. Not sure that matters.  So can’t go through Archer AX6000 to check modem page of 192.168.100.1 without direct connect abs some redoing of computer network settings. It’s a real pain. And something I haven’t had to deal with for a prior provider that had fiber optic connection. About business, I am resident no business but building has commercial account I think for security services so thought that relevant if I’d I needed a second wan IP address. Some posts have that in answers. But forget that for now. Appreciate your quick response. Thank you and I will post more info shortly. 

Quite welcome !

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Just want to confirm that a -2.5db 2 output port isn’t ideal for this setup? I thought taps distributed signal in a way that favors one output over the other. I went back to look at the tap/splitter today and I don’t think it’s a high quality one and certainly not a tap but -2.5 2 port splitter. To your knowledge, would that have a negative impact on my internet speed? 

Now I am sure I need a tap over a splitter. The run to the modem is about 1.5 feet. The run to the next apartment is probably 20 to 30 feet. Can you tell me which tap (make/model) Comcast is supposed to be installing? If only fios gigabit was offered here….

Here is relevant info on power, S/N, etc:

Upstream- only 4 channels:

A number of ranging response errors T3 timeouts, no response from unicast maintenance ranging,  with timing synchronization failures.

The power ranges for down and up seem low for published ranges and the s/r levels don't seem very high. 4 up channels makes me think Xfinity has provisioned the modem incorrectly, splitter vs a tap contributes some. Appreciate any help from the community volunteers and Comcast itself.

The downstream power is actually too high / out of spec on the higher channels. Try reversing the ports on the tap. You may not need a tap and may be better off using a splitter instead.

And "provisioning" has nothing to do with the RF power levels or the amount of multiple bonded channels.

And did you ever try that test ?

For a test, what speed do you get with your wife's computer connected directly to the 2.5 gig port on the S33 cable modem (no router in the mix) ?

They were horrid in the 90 mb/s range so can’t be right. Here’s a pic of the box that the hardwire Ethernet going to rest of apt use: do you know what the blue wires are for - arc1 abs arc2

Not much to go on with that pic seeing 2 inches of blue wire, sorry.

So if you got 90 mb/s with a direct connection to the S33 modem then the problem is likely on the WAN side connection to the Comcast system or the modem itself, not on your LAN equipment.

Perhaps you'd be better off getting a tech out to investigate. I don't believe that this forum can advise you any further. Good luck with it !

Thanks. I had selected 3 pics but only one uploaded. It was picture outlines of punch down termination- maybe that would have been helpful. XFinity has talked me out of coming out stating its Arris’ fault and that after things in their office Or provisioning It would improve and it has not. Thanks for your help and enjoy the week. qManJack