WI-FI issues on new upgraded connection

thestaticboy

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Good Morning all,

I'm dealing with a pretty random case and cant seem to figure things out with regards to a wi-fi connection.

Im looking at a connection which uses a cable modem connected to netgear WGR613v9.

So at the original 10mb broadband speed which was being used, both the cabled and wireless connections were running perfectly. There was no degrading in the connection and all was perfect.
With a recent upgrade through an ISP up to 20mb broadband, there is a perfect connection via cable but the wireless is either cutting out or fluctuating between 2/3mb and 15mb at the very highest.

The thing that confuses me is that the equipment is more than adequate to cope with a maximum connection of 22mb and handled 10mb perfectly. However the upgrade to 20mb has made the connection unstable.

All wireless cards and devices can support the speeds too.

channels on the router have been adjusted, WPA2-PSK security is in force, B & G mode is active.

Im at a loss as to whether this is the result of the ISP and the cable into the apartment or whether this is an equipment fault, as the equipment was running perfectly a day before the upgrade.
There was never any degrading at 10mb and no channels ever needed to be changed as there was no-one in the area affecting the wifi connection.

Any ideas here?

The last option is that an engineer from Virgin media is called to check the fibre optic line itself.

Thanks in advance
 
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Are you sure about the wireless channel it's working on? I have a utility on my Android phone(Wifi Analyser) for checking the best signal for the situation and change the router from auto to fixed. It could be the channel picked up on the router after the upgrade is weak. The app has solved a problem for me for weak/drop off signals.
 
After checking out the channels, are there any firmware updates? You'd never know.
 
Are you sure about the wireless channel it's working on? I have a utility on my Android phone(Wifi Analyser) for checking the best signal for the situation and change the router from auto to fixed. It could be the channel picked up on the router after the upgrade is weak. The app has solved a problem for me for weak/drop off signals.

Ive been trying out insidder2.0 to figure out who is sat where around us. Ive also switched channels between 3,6,7 & 11.
Virgin Media our ISP even tried us testing on 14 which kicked the connection out completely. I forgot about that app, ill give it a blast and see if it picks anything up that the network card isnt.
As i'm typing this, the network kicked off and back again.

Thanks
 
Ive been trying out insidder2.0 to figure out who is sat where around us. Ive also switched channels between 3,6,7 & 11.
Virgin Media our ISP even tried us testing on 14 which kicked the connection out completely. I forgot about that app, ill give it a blast and see if it picks anything up that the network card isnt.
As i'm typing this, the network kicked off and back again.

Thanks

Yes the app is good you can see all channels and their strengths for the location you're in. At least fix that and go from there as it's one varuable out of the way.
 
I'd go for a firmware update on that Netgear....
Reset to defaults...flash firmware...reset to defaults again (even though it already is)....power cycle it, and go set it up again.

Disable B mode on the wireless also...unless you have a need for some prehistoric wireless client that is still running on B.

If that model has Netgears "Turbo" or "Super" 108 mode...disable that.
TBO...I've had a dislike for those older thin white Netgear models..just haven't had good experiences with them.

Make sure MTU is manually set to 1500.

Since it appears that you're getting good bandwidth when plugging in via patch cable....I doubt it's the connection on the ISP side.
 
Disable B mode on the wireless also...unless you have a need for some prehistoric wireless client that is still running on B.

It only takes one B client to kick back your entire network to 11 Mbps, since they don't do DSSS...

but the wireless is either cutting out or fluctuating between 2/3mb and 15mb at the very highest.

How have you tested the throughput?
Or do you mean that's the indicated speed from Windows ZeroConf?
 
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as it was a virgin media router, things were somewhat trickier to update firmware. Still, after a touch of telnet adjustments I've managed to up the firmware to the latest version.

Channel is currently set at 6 and touch wood although the connection is still fluctuating, we are sat at between 9mbps and 15mbps as an average using speedtest.net.

There still seems to be intervals of the connection kicking out, but with a bit of luck the engineer will take along a new N router. I believe they are using the D-Link Dir 615 models now.

Ill also ensure connections are set to G only. B just isn't required at all.
MTU is currently set at 1500 as a default.

Cheers for your info there.
 
I meant firmware on the Nutgear router...not Virgins CPE.

Most home grade broadband routers have MTU set to "auto detect". Over the years, I've found that auto MTU doesn't always work optimally...hence I manually set MTU based on the connection type.
PPPoE DSL...1492
Bridged DSL, cable, T...1500

Although I don't see MTU as being your issue...wrong MTU would cause equally slower performance (barely noticable)...bigger issue would be with other non http apps on the web, such as SMTP issues, or VPN client issues, etc.
 
Sorry, i wasnt clear there.

The Netgear router was a virgin media router (it is locked to the ISP settings), i had to use the windows 7 telnet service to break past the virgin media defaults so that it would allow a firmware update.

With the firmware updated things seem somewhat smoother. We are using a cable connection and the MTU is set to 1500 as standard, but ill keep the other value in mind.

Thanks again.
 
+1 on locking out 802.11b devices.

Why are you wasting your time and your client's money on cheap POS routers? I just say NO to d-link routers.

Get them to spend at least $80 on a good router. Don't be penny wise and pound foolish.
 
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