Suddenly horrible wi fi connection to router

SantiClaws

Senior member
Sep 2, 2000
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Suddenly, I'm having issues with the wifi connection to the router. Sunday, I spent much of the day gaming online with no issues, no lag, nothing. Pingtest.net was giving me an "A." Monday morning, horrors. Pingtest.net gives me grades of "D" or "F", low ping, jitter in the hundreds sometimes instead of single digits like it was. Download speeds are down from 15Mbps to as little as 0.68. Router is in the living room, from the bedroom I'm having trouble even logging into the router. Tried switching channels, no joy.

This morning, the connection was perfect again, and this afternoon, back to barely connecting. In the living room, things are better but still nowhere near as good as they were a few days ago. The weird thing is, even through all this I'm getting five bars on the wireless connection icon and inSSIDer is showing a solid wifi connection to the router. My guess is I'm suddenly getting serious interference from somewhere (condo), but should I not see a poor connection to the router either on the computers or using inSSIDer.

Any ideas?
 

SantiClaws

Senior member
Sep 2, 2000
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Ran some additional tests - connected to a dd-wrt router I have, sitting six inches away. Connection is solid, but download speeds are iffy and pingtest shows issues. A wired connection to the router gives great download speeds, although still only shows a "B" as far as quality of connection. Hmm.
 

AnonymouseUser

Diamond Member
May 14, 2003
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You could be having issues with your onboard wifi. Do you have a USB wifi available to test with?
 

AnonymouseUser

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May 14, 2003
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Have you also tested with a wired connection? It's possible that your internet connection is flaky, not the wifi.
 

SantiClaws

Senior member
Sep 2, 2000
439
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Have you also tested with a wired connection? It's possible that your internet connection is flaky, not the wifi.

Yeah, I did. It's not as good as it should be, but it is not horrid like the wi fi connection. And even if it was the internet, why would I have trouble even logging into the router?
 

AnonymouseUser

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May 14, 2003
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Yeah, I did. It's not as good as it should be, but it is not horrid like the wi fi connection. And even if it was the internet, why would I have trouble even logging into the router?

Good point. Maybe your router is overheating?
 

AnonymouseUser

Diamond Member
May 14, 2003
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Ran some additional tests - connected to a dd-wrt router I have, sitting six inches away. Connection is solid, but download speeds are iffy and pingtest shows issues. A wired connection to the router gives great download speeds, although still only shows a "B" as far as quality of connection. Hmm.

To clarify the bolded part, is that a wired connection to the main router, or the dd-wrt router?
 

AnonymouseUser

Diamond Member
May 14, 2003
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Your wireless security: WEP or WPA2? If WPA2, is WPS enabled?

Next time it seems flaky, change your wifi password and immediately try another test.
 

SantiClaws

Senior member
Sep 2, 2000
439
1
81
To clarify the bolded part, is that a wired connection to the main router, or the dd-wrt router?

Main router.

Your wireless security: WEP or WPA2? If WPA2, is WPS enabled?

Next time it seems flaky, change your wifi password and immediately try another test.

WPA2. I am fairly certain WPS is enabled, but not 100%. I am not home at the moment. I'll try your suggestion tonight. I expect it will still be flaky as I was barely able to connect to the internet this morning.
 

AnonymouseUser

Diamond Member
May 14, 2003
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WPA2. I am fairly certain WPS is enabled, but not 100%. I am not home at the moment. I'll try your suggestion tonight. I expect it will still be flaky as I was barely able to connect to the internet this morning.

My theory here is that someone may have gained access to your router via the security vulnerability built into WPS. While that won't necessarily cause the issues you describe, they may be torrenting over your wifi at random times which could, so changing the password (and disabling WPS) would surely lock them out.
 

SantiClaws

Senior member
Sep 2, 2000
439
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OK, changed password, disabled WPS and no change. Still acting funny. I'm wondering if the modem is having issues, although it seems somewhat unlikely. This is driving me crazy.
 

AnonymouseUser

Diamond Member
May 14, 2003
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Isolate the modem by doing a large LAN transfer over wifi. If speeds are good and consistent, then it may be the modem or even the cable between the modem and router.
 

lexco

Member
May 9, 2013
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Suddenly, I'm having issues with the wifi connection to the router. Sunday, I spent much of the day gaming online with no issues, no lag, nothing. Pingtest.net was giving me an "A

If it is due to interference you can check it by changing the wireless frequency to 5GHz or change it to dual mode. Also check if it is due to internet issues by connecting a computer directly to the modem.

Update the router firmware, may be it will fix issues with router.
 
Last edited:

John Connor

Lifer
Nov 30, 2012
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Let me get this straight. You have two routers, one is flashed with DD-WRT and one is not and both give bad results? If this is the case you could have a bad Internet connection or the modem is going out. You can change your IP address by going into the router using the MAC address clone feature using a different MAC address and save, Reset the modem and you should have a new IP address.

If you want to test your connection try smokeping. Let this run a day or two and check the results. http://www.dslreports.com/smokeping
 

SantiClaws

Senior member
Sep 2, 2000
439
1
81
If it is due to interference you can check it by changing the wireless frequency to 5GHz or change it to dual mode. Also check if it is due to internet issues by connecting a computer directly to the modem.
.

Let me get this straight. You have two routers, one is flashed with DD-WRT and one is not and both give bad results? If this is the case you could have a bad Internet connection or the modem is going out. You can change your IP address by going into the router using the MAC address clone feature using a different MAC address and save, Reset the modem and you should have a new IP address.

If you want to test your connection try smokeping. Let this run a day or two and check the results. http://www.dslreports.com/smokeping
It's a zoom 5350 modem/router combo. It doesn't have a 5Mhz mode, only 2.4. I've tried putting it in "modem only" mode and connecting a Linksys router flashed with DD-WRT. It may be the modem or the internet connection, although wired directly to the zoom router the connection is never terrible. I'll try smokeping. Unfortunately, testing is somewhat complicated by the fact that the problem is intermittent.
 

John Connor

Lifer
Nov 30, 2012
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When you said you couldn't hardly connect to the router are you referring to the cable modem/router or the router with DD-WRT?