Hi,
I have got a problem with my internetspeed, maybe caused by a LAN to WAN bottleneck. I have cabel internet with 30mbit/s down- and upstream. The only hardware that I received from my ISP is a Cisco SPA122, which seems to be a ATA and not a modem (or is that the same?). The SPA122 has one WAN and one LAN port. According to Cisco it even has an integrated router, but I suppose that it is configured in bridge mode. But I cannot access the SPA122, as I don't have the login name and password. When I connect my computer directly to the SPA122s LAN port my internetspeed is about 30mbit/s. But when I use a TP-Link TL-WR841N as a router the speed drops to only 9,7mbit/s (downstream is constantly 1,2mbyte/s) and upstream is not as constant but also in the area of 10mbit/s. By the way, I am using the router wired only, i.e. WLAN is turned off. First I thought the problem is that the router can only handle 10mbit/s WAN to LAN throughput. But according to TP-Link it has a WAN to LAN throughput of 94mbit/s. To test my router I followed the instruction presented here:
how to test a wireless router
connecting one machine to the lan port and one to the wan port. the machine on the lan port has been set as DMZ.
With netio I measured LAN to WAN throughput of about 10 to 11mbyte/s, which is close to the manufactureres 94mbit/s.
Therefore the router should be able to handle 30mbit/s easily.
What else could cause the internet speed to drop, when the WAN to LAN throughput of the router is fast enough?
Another question what I do not understand is, that when I connect a switch to the SPA122 without a router, every computer connected to the switch actually has internet, with full speed. But every computer then has its own internet IP, I thought the ISP will allow max. 1 IP adress and that is why I need a router, which translates the private IP adresses of several computers to one IP adress?
Thanks for your help!
I have got a problem with my internetspeed, maybe caused by a LAN to WAN bottleneck. I have cabel internet with 30mbit/s down- and upstream. The only hardware that I received from my ISP is a Cisco SPA122, which seems to be a ATA and not a modem (or is that the same?). The SPA122 has one WAN and one LAN port. According to Cisco it even has an integrated router, but I suppose that it is configured in bridge mode. But I cannot access the SPA122, as I don't have the login name and password. When I connect my computer directly to the SPA122s LAN port my internetspeed is about 30mbit/s. But when I use a TP-Link TL-WR841N as a router the speed drops to only 9,7mbit/s (downstream is constantly 1,2mbyte/s) and upstream is not as constant but also in the area of 10mbit/s. By the way, I am using the router wired only, i.e. WLAN is turned off. First I thought the problem is that the router can only handle 10mbit/s WAN to LAN throughput. But according to TP-Link it has a WAN to LAN throughput of 94mbit/s. To test my router I followed the instruction presented here:
how to test a wireless router
connecting one machine to the lan port and one to the wan port. the machine on the lan port has been set as DMZ.
With netio I measured LAN to WAN throughput of about 10 to 11mbyte/s, which is close to the manufactureres 94mbit/s.
Therefore the router should be able to handle 30mbit/s easily.
What else could cause the internet speed to drop, when the WAN to LAN throughput of the router is fast enough?
Another question what I do not understand is, that when I connect a switch to the SPA122 without a router, every computer connected to the switch actually has internet, with full speed. But every computer then has its own internet IP, I thought the ISP will allow max. 1 IP adress and that is why I need a router, which translates the private IP adresses of several computers to one IP adress?
Thanks for your help!