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Really like the Synology episode hope they keep coming!


G+_Alex Martinez
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Really like the Synology episode hope they keep coming!. I remember they did a small example on the screen savers of Padre setting up routing computers though a vpn in Synology if I remember correctly. Hope he finds time to show how he did that in more detail.

 

But I wanted to ask if anyone on here would know why Im having problems transferring files from my Synology it limits the transfer speed at 10mbs to 11 and takes forever on what ever I do . I have cat 6 and gigabit on all my computers. I'm using to tplink archer C7 router with ddwrt on it and a tplink switch. So if anyone can give me some tips why the transfer rate is so low I would appreciate it .

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Here is a review of that router. pcmag.com - TP-Link Archer C7 AC1750 Wireless Dual Band Gigabit Router (V2)

 

They say "As with other budget routers, the Archer C7's file-transfer speeds were middling;"

 

Just because a router has 1Gb ports does not mean the electronics inside can transfer speeds at that rate. I recall a review about the Ubiquity EdgeRouter X (the one Steve Gibson recommends) could only push around 350Mb on 1Gb ports.

 

I would suggest getting a stand alone switch and test the speed that way. A switch should be using an ASIC (Application-specific integrated circuit) to pass the frames so no CPU is required. A router my have to "Punt" (Cisco term) a packet off to the CPU to make a decision on it which slows things down.

 

But again you have a consumer grade device with your TP-Link and you may just be overwhelming it.

 

Don't forget that you are reading data from a bunch of HD. It may be the speed of the device slowing things down too.

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I assume 10~11 mbs is MBps (uppercase 'B' = megabytes per second, lowercase 'b' = megabits)? Network equipment is typically measured in Mbps, whereas Windows transfer speed is usually presented in MBps.

 

That 10 MBps = 80 Mbps, which is close to the real-world limit of 100 Mbps equipment. I'd check that switch to make sure it's Gigabit also and try plugging your computer and NAS into the routers ports to test (or test with the switch if they're both on the router currently).

 

Gigabit ports should give around 100 MBps (800 Mbps) if the rest of the hardware supports it. You wouldn't likely get that from a single HDD, but might from a good RAID or an SSD.

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So, I ran Crystal DiskMark on a bunch of different storage options, and here's what I came up with. Sorry for the terrible presentation of data.

 

TL;DR: everything was faster than 10 MB/s on sequential read/write.

 

C and H drives are SSD, so they're expected to be fast.

W, Y, S, and USB are all on the NAS, so probably closest to your example. I moved a 12 GB folder to W-drive to validate the 100+ MB/s write speed. USB is connected to a USB 2.0 port on the NAS.

Local HDDs E and N are both way too full, so I expected bad performance from them.

 

So, I'm not sure what would cause your slow transfer speed. I'd look at the network again though to make sure your NAS or PC isn't stuck on 100 Mbps networking.

25058%20-%20Disk%20Benchmark%20results.P

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Damn thanks ben and everyone for giving me the tips. I took some time after reading everyone comments and decided to rewired the Ethernet cable between the router and switch ( also changed it from TIA-568A to TIA-568B) .I also saw that cable was on port 5 not port 1 on the switch so i put it on port 1 ( not sure if that made any difference). I dont know which one fixed it but now im getting 100MB/S now.

 

But im wondering i wired most of the Ethernet wiring in my home with TIA-568A and some are TIA-568B does that cause conflict if those two standards are on the same network?

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Alex Martinez The only difference between TIA-568A & B is the color of wires on pairs 1/2 & 3/6. Electrically they are identical and can be used in the same installation without problem. FYI, 568A is the recommended pattern for new installations because it matches some other telecom wiring standards.

 

Changing between ports 1 and 5 also should have no difference on the performance of a switch.

 

My best guess is as to why it's now fixed is that the cable you changed is slightly defective or a plug was not making good contact in a jack.

 

At the gigabit Ethernet level, resistance checks do not guarantee a good cable, it requires an expensive tester to check the high frequency signal integrity.

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Alex Martinez also possible one of the "less important" wires 4,5,7,8 wasn't connected at one of the plugs. For 100 Mbps ethernet (technically 100BASE-TX, I believe), only wires 1, 2, 3, 6 are needed. For 1000 Mbps ethernet, all 8 wires must be connected correctly.

 

It's very easy to miss a bad wire/crimp without the proper tools. Glad you got it figured out though!!

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