Desktop

Ask something
Discussion Locked

PING...

0 helpful
6 replies

by cyberghost_1

Closed to new repliesThis discussion is closed. It stays readable, but it takes no new replies.
Quick question...how do I become pingable? I'm not behind any Firewall...to my knowledge...I went to dslreports.com and in order to do a Line Quality test i have to be pingable. One other thing I DL and used DrTCP and it says my MTU is 1500, but dslreports.com's Tweak Test results still have me at 1460 I think...or 1480. What is the deal with that? Last of all, what can I do about a 20% packet loss? Is that why my DL speed is slower than UpLoad? Upload speed is between 888k to 1021k.

6 replies

by cg it

humm if your using a router, the router might be blocking WAN pings. Enable WAN ping or WAN ICMP.

MTU 1500 is normal and basically a default value. What you really want is the RWIN settings and what the tweek test says a good receive window setting should be at.

20% packet loss is a lot and would account for poor performance. Somewhere and for some reason you are dropping packets. Give us a rundown on your setup e.g. router?? with mfg/model; how it's configured e.g. what are the firewall settings, any packet filters enabled, what your blocking, What did the tweek test give you e.g. RWIN, Windows Scaling, MTU path, windows scaling, time stamping and so on.

as far as you download/upload speeds, these vary depending upon which backbone server DSL Reports is using at the time.

by cg it

hummm dump the hubs. Get a consumer level Cable/DSL router and connect all your computers to the router LAN ports.

your packet loss might be attributed to the other pcs on the LAN which using a router between your cable modem and other PCs will go a long way in solving. The router will read the packet header info and router the packet to the right host. using hubs, theres no packet reading so inbound traffic goes to all hosts on the LAN in the hopes of finding the right one [similar to a ICMP broadcast]. The other PCs will read the packet and say "ooops damnit thats not mine" and drop the packet, meanwhile your pc that made the request has to keep telling the sending host "hey, where the devil is packet 255 please send again". there's your packet loss.

by cg it

I wouldn't worry about cat 5 cable lenght in that you have to use hubs unless your running it across the neighborhood.

by cyberghost_1

I don't have all the info right now, but here is a rundown. My Motorola SurfBoard cable modem is connected to a 10MBps Ethernet Hub, that hub is connected to another Ethernet Hub, then to my PC. Strange I know...the reason being that my PC is far from the modem and I have 2 PC connected to the modem thru the hubs. Don't laugh but can you explain the router bit....what exactly is a router? I connected this set up myself, just installed the modem on both PC's and connected everthing with Ethernet cable and the hubs. On my PC's side, I have a Realtek RTL8139/810x Family Fast Ethernet NIC. Oh.....my RWIN is 373360, TTL 128......Update Please...

This discussion is closed to new replies.