ejolson
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Gigabit Switch for Pi 4

Sun Aug 25, 2019 3:27 pm

As described in this post, see also here, my Pi 4B will not connect to a Rosewill RC-416 8-port Gigabit Green Switch.

Nobody has suggested a solution nor have I found one myself. Therefore, I'm considering the following two options:
  • Get a different switch.
  • Get a different pi-like SBC.
There is no point in trying to discuss the second option on this forum.

With regards to a different switch, does anyone know whether the TP-LINK TL-SG108 Unmanaged 10/100/1000Mbps 8-Port Gigabit Desktop Switch described here works with the Pi 4B?

Could anyone recommend an 8-port switch known to work with the 4B?

DirkS
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Re: Gigabit Switch for Pi 4

Sun Aug 25, 2019 4:04 pm

I got that TPLink switch off Amazon 2 weeks ago. I have 2 4Bs and my router connected to it and it seems to be working fine.
Haven't done any in-depth tests though

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thagrol
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Re: Gigabit Switch for Pi 4

Sun Aug 25, 2019 4:05 pm

There is a third option: try another cable ;)

That said, I'm using a Tenda SG108 (https://tendacn.com/uk/product/SG108.html) without any problems with a variety of Pi including a 4B.
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ejolson
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Re: Gigabit Switch for Pi 4

Sun Aug 25, 2019 4:16 pm

thagrol wrote:
Sun Aug 25, 2019 4:05 pm
There is a third option: try another cable ;)

That said, I'm using a Tenda SG108 (https://tendacn.com/uk/product/SG108.html) without any problems with a variety of Pi including a 4B.
I've tried four different cables, all of which work to connect the same switch at gigabit speeds to other computers. I suppose there could be a mechanical irregularity in the RJ45 socket that prevents all the wires from connecting.

For now I placed an older 100 Mbit switch between the 4B and the gigabit switch, which works but at the lower speed.

ejolson
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Re: Gigabit Switch for Pi 4

Sun Aug 25, 2019 4:17 pm

DirkS wrote:
Sun Aug 25, 2019 4:04 pm
I got that TPLink switch off Amazon 2 weeks ago. I have 2 4Bs and my router connected to it and it seems to be working fine.
Haven't done any in-depth tests though
That's good to know. Unless something turns up to fix the compatibility problems with the switch I have, I'll likely get one. It's interesting that the Tenda and the TP-LINK both have the same SG108 model number.

Could the Pi be broken?
Last edited by ejolson on Sun Aug 25, 2019 4:24 pm, edited 2 times in total.

drgeoff
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Re: Gigabit Switch for Pi 4

Sun Aug 25, 2019 4:21 pm

I've used a D-LInk G0-SW-8G with a RPi4B.

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graysky
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Re: Gigabit Switch for Pi 4

Sun Aug 25, 2019 5:28 pm

Cisco SG100-16 works.

ejolson
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Re: Gigabit Switch for Pi 4

Sun Aug 25, 2019 5:45 pm

graysky wrote:
Sun Aug 25, 2019 5:28 pm
Cisco SG100-16 works.
That's another good data point. I'm starting to suspect the Pi 4B itself is the problem rather than the Rosewill switch. I'll have more information soon.

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rpdom
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Re: Gigabit Switch for Pi 4

Sun Aug 25, 2019 6:33 pm

Netgear GS108 switch here with a cheap 3m/10ft cable from Poundworld (before they closed down here). Runs fine at 1Gb on my Pi 4B/4GB

pcmanbob
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Re: Gigabit Switch for Pi 4

Mon Aug 26, 2019 7:15 am

I have a Netgear GS116 & GS308 and my pi4 works with both of them , using various networking cables, most of which I have made myself, lengths vary from 6" to 20ft , the longer being a hard wired LAN socket in another room.
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LTolledo
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Re: Gigabit Switch for Pi 4

Mon Aug 26, 2019 10:45 am

Am using Elecom EHC-G08PA2-B, with flat CAT6 cables for GbE equipped RPis/SBCs and flat CAT5e for 100MBbps equipped RPis/SBCs. been using for more than 6 months

started setting up RPi4B-4G yesterday...with a freshly installed Raspbian Buster with full Desktop.... connected properly to the GbE switch....
but not with Raspbian Stretch updated to Buster (cloned and updated/upgraded on RPi3B+, then microSD transferred to RPi4B, no LAN & no WiFi problem)
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ejolson
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Re: Gigabit Switch for Pi 4

Wed Aug 28, 2019 11:09 pm

LTolledo wrote:
Mon Aug 26, 2019 10:45 am
Am using Elecom EHC-G08PA2-B, with flat CAT6 cables for GbE equipped RPis/SBCs and flat CAT5e for 100MBbps equipped RPis/SBCs. been using for more than 6 months
I have now tried that 4B which was not connecting to the Rosewill RC-416 on a different gigabit switch. It connects to a D-Link DGS-1248T no problems and I have verified gigabit speeds using iperf3. Hurray!

I'm actually a bit surprised: The RC-416 worked with all other computers I've tried and the 4B seems to work with all other switches. I wonder what the incompatibility is and whether there are other switches with similar problems. For now, I'm looking to get a different switch. Thanks for all the recommendations of gigabit switches that do work with the Raspberry Pi 4B--that will be useful to avoid any further problems!

ejolson
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Re: Gigabit Switch for Pi 4

Fri Aug 30, 2019 6:18 am

ejolson wrote:
Wed Aug 28, 2019 11:09 pm
Thanks for all the recommendations of gigabit switches that do work with the Raspberry Pi 4B--that will be useful to avoid any further problems!
Woohoo! The TP-LINK TL-SG108 Unmanaged 10/100/1000Mbps 8-Port Gigabit Desktop Switch is now on order. If all goes well, I'll be back to my file-server experiment soon.

azjp
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Re: Gigabit Switch for Pi 4

Sun Sep 01, 2019 5:32 am

My golden olde (2014) Trendnet TEG-S80g works.

ejolson
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Re: Gigabit Switch for Pi 4

Sat Sep 07, 2019 2:18 am

ejolson wrote:
Fri Aug 30, 2019 6:18 am
ejolson wrote:
Wed Aug 28, 2019 11:09 pm
Thanks for all the recommendations of gigabit switches that do work with the Raspberry Pi 4B--that will be useful to avoid any further problems!
Woohoo! The TP-LINK TL-SG108 Unmanaged 10/100/1000Mbps 8-Port Gigabit Desktop Switch is now on order. If all goes well, I'll be back to my file-server experiment soon.
I have now tried the TP-LINK TL-SG108. Reported speeds with iperf3 are around 930 Mbits/sec, which seems quite promising. It's still a mystery to me what the incompatibility was with the Rosewill RC-416, because that switch has worked fine with every other computer.

At any rate, I was able to get the new switch at what I feel was a reasonable price and the performance seems good. Again thanks to everyone for mentioning which switches work.

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