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Polynomial

I've been having a problem with my home network for the last 3-4 months, and I can't figure out the problem.

I have a 10Mbps internet connection from Virgin Media (formerly NTL) which is being registered by SpeedTest.net as around 9.2Mbps on machines connected to my router by wire (i.e. CAT5 cable).

However, every machine that connects by wireless gets around 1-3Mbps access speed. This randomly started about 3-4 months ago, and I have no idea why. The problem is happening on XP and Vista machines, as well as on a PS3.

I've tried switching the wireless channel, disabling frame bursting, updating the firmware (nothing new was found) and even using a different router. The second router had exactly the same problem - computers connected by wire worked perfectly, but on wireless it was still slow.

The problem occurs at all times, no matter which computers are on or off.

Anyone got any idea how to sort this?

hackerdvm · Posted: Sun Aug 16, 2009 6:44 pm Post subject:

change your internet provider its not from your end its theirs.

I recomend you go with telus they are the best.

I know its not yours its theirs o and see the little computer in the corner try right clicking it and click repair that might fix it and go to internet

Polynomial · Posted: Sun Aug 16, 2009 7:37 pm Post subject:

You seem to have misunderstood.

The internet access from the modem itself works perfectly when wired into a computer directly, or through the router when the computer is connected by a cable. It is the wireless that is slow.

I have attempted releasing and renewing the DHCP lease, as well as using ipconfig /flushdns. I've also checked that the SSID is unique to the area. No joy.

What strikes me as odd is that it happened on all the computers at the same time.

Saifallofjmr · Posted: Sun Aug 16, 2009 7:47 pm Post subject:

Wireless is suppose to be slower than wired, wireless G has a limit of 54mbps while wired has a limit of 1000 mbps.

Polynomial · Posted: Sun Aug 16, 2009 7:53 pm Post subject:

I used to get 1.1MB/s downloads on this exact same router with the exact same modem. Now I'm lucky to get 300KB/s, and on a good day it might push ro just under 500KB/s.

I'm Serious · Posted: Sun Aug 16, 2009 7:53 pm Post subject:

also hardware could be failing, try a new one

Saifallofjmr · Posted: Sun Aug 16, 2009 7:55 pm Post subject:

Have you recently got any new furniture, changed any thing inside your house? got any new gadgets?

Polynomial · Posted: Sun Aug 16, 2009 7:56 pm Post subject:

I've tried two separate routers. The problem still occurs on 4 different PCs and a PS3.

No new gadgets that I know of. There were no real changes to our house in terms of furniture or technology around the time when it started to happen.

hcavolsdsadgadsg · Posted: Sun Aug 16, 2009 8:05 pm Post subject:

1. Signal is good?

2. Is the network secured? One of my neighbors apparently managed to pick up my signal a while ago and thought they were cool or some shit mooching off me.

oib111 · Posted: Sun Aug 16, 2009 8:59 pm Post subject:

I doubt it's a hardware failure if it's happening to all of his computer's at once. Listen to slovach. If you aren't using WEP/WPA I suggest you start using it because someone is most likely connected to your network and wasting your bandwidth.

Cheetah · Posted: Sun Aug 16, 2009 10:51 pm Post subject:

Polynomial · Posted: Mon Aug 17, 2009 5:02 am Post subject:

I'm using WEP, but I have wireless MAC filtering on and limited to the devices I wish to allow to connect. It's not a question of security. I'd use WPA with RADIUS on my home server, but my PSP doesn't support WPA properly.

The signal strength in my room varies (randomly between low to excellent) but it stays at excellent in my brother's room, and his PC has the worst access speeds.

I'm pretty good with networking (I work a few hours for a hosting company) but this is just confusing the hell out of me. I'm tempted to pay out the £100 for an 802.11n router and wireless NIC just to get out of the issue... though if that didn't fix it then I'd be pretty sure someone or something is putting out wide-band noise. It's driving me insane.

darkex · Posted: Mon Aug 17, 2009 5:06 am Post subject:

Try deducing the problem by removing equipment one by one

Remove a router, then test it, do the same with the other one

Make sure there isn't any local interference next to the wifi router, etc

Polynomial · Posted: Mon Aug 17, 2009 5:25 am Post subject:

Well I'm 99.9% sure it's something either in my house or a nearby house causing interferance.

I'll test the second router outside of my house (it had the same problem as the first) and if the access speed is high, then it's my house.

We have a Virgin Media technician coming over tomorrow regarding our internet access drop-outs (most probably unrelated), and I'll ask him about the issue then, but the chances are he's a trained monkey and I'll know more on the subject than he does.

Although... here's a thought. The router sits on top of the modem. At around the same time the wireless started going strange, the internet access started dropping out (it wouldn't find the DHCP server at all for like 3 or 4 hours, then it'd come back). Could it be that a part in the modem has failed or at least has a fault, and that said part is causing localised electromagnetic broadband noise that is screwing up the transmitter on the router?

Chances are he'll replace the modem anyway, it's usually their first move. If it is fixed, then I'll have my answer.

Polynomial · Posted: Tue Aug 18, 2009 4:30 am Post subject:

We just got our modem replaced by the Virgin Media tech guy in order to fix out internet connection dropouts, but it's still slow on wireless with the router.

This pretty much eliminates the following:
1) Bad router
2) Bad modem
3) Bad ethernet cable (got replaced)

Since it's happening on more than 4 machines, I really doubt that it's anything on the computers (or PS3s) that is the issue.

I'm stumped.

Any ideas?