To add more to this, somehow I missed it but I had quite a few CRC errors on the outside interface. I switched the FastEthernet0/0 to speed auto, duplex auto and now I am getting about 45Mbps download speed. I would still like to see the router get closer to 60 though, is there anything I could tweak in the config that might increase the speed of this just a little bit? Or is an 1841 only rated to about 45Mbps with all the firewall features turned on?
A school I am doing some volunteer work for has a 60/4 coax internet service through Charter communication. I just put in an older Cisco 1841 router and used my default standard config I use at many other sites. For some reason I am only getting about 6 - 8 mbps download speeds with the router. When I plug directly into the cable modem with my laptop I am getting the advertised speeds.
Attached is my config, it looks pretty standard to me and for the life of me I can not see why this router would be performing so poorly. The CPU utilization is very low, I have to be missing something though.
I have tried this and I have not seen any noticeable speed improvements. Still sitting around roughly 7mbps speed. I just can not believe the 1841 is so old that it can not handle the connection speeds.
I'm having the same issue with the 1841 I get about 12Megbit were I can get over 20 connected with a cheap old linksys router. If you look at the processor it's pegged at 100% after doing some research I found the 1841 has a slow CPU it's max is only 38meg that's not even natting. I assume when you nat the CPU is maxed out. My IP input shows 70% while downloading a 500meg file. I'm going to try an ASA5200
120 184159140 71050305 2591 66.79% 24.54% 6.34% 0 IP Input
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...