said by Mac Write:When the tech was here, I was getting good speed using my rMBP. It only changed the day after. I checked the router and both lines are
Line 1:
Line Rate: 67266 Kbps 14815 Kbps
Attainable Line Rate: 98980 Kbps 48830 Kbps
SNR: 9 dB 18 dB
Attenuation: (DS1)8.1, (DS2)18.9, (DS3)31.2 dB (US1)4.0, (US2)16.8, (US3)25.0 dB
Power: 9.1 dBm -7.3 dBm
Line 2:
Line Rate: 64664 Kbps 21024 Kbps
Attainable Line Rate: 92197 Kbps 46678 Kbps
SNR: 9 dB 10 dB
Attenuation: (DS1)9.2, (DS2)20.3, (DS3)32.6 dB (US1)4.1, (US2)16.9, (US3)24.4 dB
Power: 7.4 dBm -9.2 dBm
Your numbers indicate that 100MB service is available. As long as bonding is properly activated, your T2200H should easily provide the specified datarate.
Your speedtest values are being limited by something other than the T2200H. As noted, wireless datarate values are variable for many different reasons - many of which are out of your control.
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If things changed after-the-fact as you describe - then the highest probability is there is nothing Telus-related which is causing the problem.
Something changed either on your system, your AirPort or in your area - which is causing your wireless datarate to be throttled.
The usual reason for sudden drops in wireless datarate is:
1. The datarate for wireless is
shared amongst all connected devices. It is
not like wired - which is switched. And again, your "delusional" datarate value returned by the wireless card in your MBP does not reflect this. Thus, if you have multiple threads demanding bandwidth - such as a continuous background backup task along with your foreground task - this means your foreground task (your speedtest) will only be able to access the bandwidth available
after the bandwidth assigned to the background task is allocated.
Note: Usually, the bandwidth-per-task-allocation is set at a percentage equal to the number of background tasks in process. (Eg: two tasks 50%, three tasks 33%, etc.) However, the value is sometimes adjustable in the background task's configuration. My backup programs allow the amount of network bandwidth consumed by my backup to be adjusted as desired. This is also the case with torrenting programs.
2. If you have multiple wireless devices connected to the AirPort - that router will automatically apportion bandwidth to the multiple devices. Your maximum datarate for your MBP
will drop as those multiple devices compete for the total available bandwidth. This is by design and is again unavoidable.
3. The AirPort (just like all wireless routers) tries to be "signal friendly" in its environment. This means it will try to "be a good neighbour" - and not spray its signal all over the place - such that it interferes with other devices in the area.
Note: The above automatically causes lower bandwidth to be imposed - so that
your signal and the other signals in your area - do not become involved in a "signal strength pissing contest". In earlier days with more-primitive routers - having lots of routers close to each other drove both your router and all your neighbours' routers crazy - and nobody got good bandwidth at all.
Nowadays at least - for routers that "play nice" - you get a fair chunk of bandwidth - and so does your neighbour - consistent with the number of router radios impinging upon each other.
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Now that you are aware of the
complexities of bandwidth allocation between competing wireless routers in an area - can you understand why the datarate you get can vary all over the map - depending upon where your MBP is in the room, how far your MBP is from
your wireless router, how near your MPB is to a
competing wireless router, and so on?
This is why it is impossible to make performance determinations in regards to high bandwidth devices - on the basis of wireless connections.