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anvil_jku
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Thursday, March 23rd, 2023 11:14 PM

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MB8600 WAN LAG with Asus RT-AX86S

I recently replaced my CM1000 because I was bumped to 1.2Gb service. I replaced it with an MB8600 because my AX86S can only do >1000mbps if you do a LAG with ports 1 and 4 (no 2.5Gbps port.) I was able to get the modem to come online as DOCSIS3.1 (all blue LED's) and my router shows the LAG is connected at 2Gbps. However, I can only get ~800mbps down no matter what I do and it varies from 650-800, this is tested directly from the router to the modem in the ASUS GUI. With my CM1000 I was able to get 940mbps consistently.

Is it possible that my modem isn't provisioned correctly? I have seen others that were able to get 1400mbps with their 8600's.  

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2 years ago

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CCDaryl

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828 Messages

2 years ago

Are you able to test it directly to just the modem, without the router, and see what type or performance you can get?

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anvil_jku

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@XfinityDaryl​  It’s an interesting conundrum since you can only get > 1Gbps via LACP across ports 1&2 on the modem to 1&4 on the router. I don’t have any machines with multiple NICs that I could use to create a LAG. The router itself is actually running the test via speedtest so it is a direct connection to the modem; it will the same results whether I access it from my phone, iPad, or any of the 3 laptops we have. The next best I could do is test my MacBook Pro connected directly to the modem to see if I get >850Mbps but that will be port limited at 1Gbps (usually 940-960Mbps in my experience so I’m not sure that would really tell me anything. 

2 years ago

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