Can anyone explain this speed loss?

[gregrocker]

I recently had to relocate my router to have a wired connection in the house, then returned it to where it was after the project was finished.

My laptop lost a lot of connection speed that didn't affect the other computers on our network. I had been getting "same IP address being used" errors on it during the project I was doing so I thought it was responsible.

When the problem persisted even after everything was set back as before I rolled it back to its last image but the speed remained less than half usual.

It seemed like the only cause could be a failing wireless adapter since the other computers on the network remained at the same speed.

As a last resort I clean reinstalled and now the laptop has regained all of its original speed. Does anyone have an idea what could have caused this since the problem persisted even after reimaging but corrected after clean reinstall?

 

[Infinite]

I used to have this error on two netbooks at the same time:

same IP address being used

Can't remember what I did to fix it.

I think I tried resetting the computer and router and removing it from Manage Wireless Networks.

 

[gregrocker]

Error would go away when I'd restart it. My roommate had a new Ipad plugged in so it could have been that, or the PC I had here that I was working on.

 

[gregrocker]

A week later and the problem has returned to the clean reinstall. Start up for the day and speeds are slow, while other computers on network are still fast.

Does anything about this suggest wireless adapter failure? Flash Player problems? At one point on a player the flash crashed is the reason I ask. Is there a way to test these or other suspects?

I have a wand across the country which I'll bring back with me to test that way. Other ideas?

The PC which was apparently generating the IP address conflict has left the house.

Thanks for sharing any expertise on this!

 

[2xg]

Hi Greg,

What's your signed up bandwidth? Would you happen to know how many devices are all sharing in your network?
Also, anything that would hog the bandwidth is a big concern - HD video streaming, downloading and heavy gaming, all of these 'might' contribute to your issue.

Do you know if there's any QoS setup in your router? Who control's the router setting?
Can you modify if needed? What type of a Wi-Fi adapter to you have? B/G, N? Is the router also an N or just B/G? Is it a Dual Band and a regular router? These are some things that you might also look into and adusting the settings might help.

Sorry, too many questions that I asked. One of those might be causing an issue, if not we can blame the Wi-Fi adapter.

We'll await for your respond.

 

[gregrocker]

We have a Linksys 300N router here, which I have access into. I reset it a few days after the problem arose and nothing changed. Wired connection for all computers tests at 30 mbps, while wireless on all other computers holds around 20 mbps, except for mine now which is right now testing around 5 mbps.

This is an old HP 510 business laptop which refuses to die and runs Win7 fast, with Intel Pro Wireless 2200BG adapter which has held up fine until now. I wonder if there's a way I can test it other than taking it back to Calif on Thurs and trying our network there, then if necessary plug in a USB wand to take to MVP Summit and back to Florida.

I'm certainly open to all suggestions, and thanks.

 

[2xg]

You may do some tests, like changing the Mode of the Linksys router. If it's on Mixed Mode try N/G, G or B/G but inform others in your place about the tests that you will be conducting. I have an Intel Wi-Fi adapter similar to yours that died. The Samsung netbook that I'm using has Atheros B/G and it gets pretty decent signal and the wireless connection is fast too.

Other than that, it's hard to find out what others might be doing since you're all sharing the bandwidth.

Check the QoS also, see if it's enabled and what type setup it has. Try disabling it.

MVP Summit, I've heard of it?

 

[metalmania31]

Does it do this whether connected physically or wireless?
Any new apps/programs that might come to mind?
Does it make any difference at various distances?
Have you tried using a usb wireless if you have one? Or borrow one?
Like others have said it could a whole bunch of things. Hardware failure, signal interference, too many pc's on same wifi channel.

 

[profdlp]

My housemate has an iPod and every time she syncs the daggone thing it throws the entire wireless side of my network into an uproar. Conflicts, sluggishness, weeping and wailing and gnashing of digital teeth.

Be a shame if something happened to it...

 

[xiaokaige]

You can set a fixed IP address for your computer.

 

[gregrocker]

Thanks, all. I'm ready to abandon this house for a new one! (Thurs)

If it's on Mixed Mode try N/G, G or B/G but inform others in your place about the tests that you will be conducting.

Check the QoS also, see if it's enabled and what type setup it has. Try disabling it.

Same in mixed or N/G modes. Where do I find QoS on WRT300N router?

Does it do this whether connected physically or wireless?
Any new apps/programs that might come to mind?
Does it make any difference at various distances?
Have you tried using a usb wireless if you have one? Or borrow one?
Like others have said it could a whole bunch of things. Hardware failure, signal interference, too many pc's on same wifi channel.

The wired connection gets the full 30 mbps speed.

Strange, if I move it using wireless to next to the router, the Speedtest pegs up to 20mbps for just a second then drops back to abysmal 700kbps-5mbps.

I'll have a wireless wand later this week and a new network at my place in Calif to test this.

My housemate has an iPod and every time she syncs the daggone thing it throws the entire wireless side of my network into an uproar. Conflicts, sluggishness, weeping and wailing and gnashing of digital teeth.

There is a new Maxi Ipad in the house which is left on and chirps a lot obnoxiously.

You can set a fixed IP address for your computer.

Just tried it and there is no difference. Then it lost connection and troubleshooter wanted to turn on DHCP.

 

[metalmania31]

If you turn the Ipad off does it help?
Can I assume you got the latest driver when you reinstalled the OS?
Also have you used a program like Inssider or similar to see other wifi networks and what channels they are on to see if it's crowded?
Oh sorry about asking about physical connection. You said that in the couple posts just before mine.

 

[2xg]

Hopefully you won't have any issues connecting to the new home and wireless network. If the issue persist, then a new Wi-Fi adapter might work.

Thanks, all. I'm ready to abandon this house for a new one!

 

[gregrocker]

Just started up to this error message:



ran ipconfig/ release
and ipconfig/ renew

Have five bars now but it tends to degrade in hours.

If I knew how to check IP address for the Ipad it would help.

If no other PC's are connected now and I get this startup message wouldn't it almost have to be the Ipad?

 

[Infinite]

Have you had a look at this?
Windows has detected an IP address conflict - Microsoft Answers

If you try these 2 commands, it may fix the issue:
ipconfig/release
ipconfig/renew

 

[gregrocker]

You must have been typing as I went back and edited it in. Yes I found that thread when I googled the error text. Maybe others will find this one if google can read the screenshot.

I still have five bars as I did when the error appeared at startup.

The error message is never consistent and I haven't seen it in at least a week since I had a PC here I was working on requiring moving the router and modem - so it was the prime suspect then.

Now I smell a rotten apple. :huh:

 

[2xg]

Newer wireless routers have the ability to auto detect the IP and Mac Addresses of the network devices, it shows on one of the router's setting page. My DLink DIR 655 has this feature. Also, I use AdvancedIPScanner to find out Host Name, IP and Mac Addresses.

If I knew how to check IP address for the Ipad it would help.

The IP conflict might also be coming from another device (Smart phones, wireless/network printer, network storage device, gaming console etc.) and not necessarily a computer. I'd suggest for you to install and run AdvancedIPScanner.

Pleave give us another update.

 

[gregrocker]

Thanks for the cool tool. Here's what it found:



I think the HP device is our wireless printer which is plugged into the router now. Just turned it's wireless radio off but the listings remain the same after Scan.

Doesn't look like the conflict continues. But I also don't see the Ipad around today. May need to run it again when it shows up again.

 

[gregrocker]

The Ipad returns. There is also an IPhone so the new fourth listing might be either.

I think the 3rd listing is the router?

 

[2xg]

IP leases expires and gets renewed also. If the next IP conflict happens again, try running the AdvancedIPScanner. I use this for home and work, it comes handy. Although my Dlink router also displays a similar information which is kind of cool too.