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Troubleshooting Question

CISCO C891F Router

sglee
sglee asked
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Last Modified: 2020-10-27
Hi,
 I have CISCO C891F Dual WAN Port Router. Spectrum internet is connected to GE WAN #8 port. Today I upgraded Spectrum internet to 600 Mbps Download / 35 Mbps Upload package, but I get only 166 Mbps Download speed when I ran speed test as you see in the screenshot.
 When I asked, CISCO tech support told me that even though it is labeled as Gigabit port, the throughput is something different and this router will NOT deliver 600 Mbps. In fact he was surprised that I was getting 166 Mbps.

 So I have two questions:
 1. Is there anything that can be done to get more than 166Mbps?
 2. If I want to replace the router with another Dual WAN (with Failover switch) router, what CISCO model would you recommend? I love CISCO products because you put these in place and they just run forever without a problem. But I hate the fact that it does not have GUI interface and I always call CISCO tech support to make major changes. So I would not mind hearing some product recommendations as long as they are just as reliable as CISCO products.

Thanks.
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Commented:
https://community.cisco.com/t5/switching/cisco-891f-router-speeds/td-p/2956536
Based on the above, that seems to be a bad router in terms of speed:   They shouldn't be able to call those ports Gig ports if that's the case.
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Commented:
That just sounds like a salesman's scam.
some oneNetwork Architect
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Commented:
What does?
Benjamin Van DitmarsSr Network Engineer
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Commented:
The cisco 891F is not going to do 600 mbit in nat modues. it will do in specs 120 mbit and thats it.
for this amount of traffic, go for a firewall that will do the job. else you will end up in the 4400 series isr to get
the 600 mbit in nat mode.

a simple cisco asa 5508 will do the job for you.

Author

Commented:
I spoke to CISCO rep and they recommended C1111-4P model as replacement for C891F

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