NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
tmittelstaedt
Jun 26, 2021Star
Bad update on 8 port Gs108eV3
Thought I would ask and possibly warn people about this. I have a GS108Ev3 on the bench. It was in use for about 2 years. I attempted to update it with the latest firmware off the Netgear webs...
tmittelstaedt
Jun 27, 2021Star
>Kindly try to disconnect the GS108Ev3 from your existing network
That is what "I have the switch on the bench" means.
Bench testing means completely disconnected from the network and on a workbench. Please add this term to your
vocabulary. Here is an explanation: https://en.wikipedia.org/wiki/Test_bench
>connect a PC/laptop directly a LAN port of it
That is implied by "bench testing"
>Try to access its web-GUI using its default IP Address which is 192.168.0.239.
I already said in my post that I had tried this on the bench
>You can also check if you can get replies when you ping the default IP Address of your GS108Ev3.
I do get replies from it when it's on the bench. As I stated already in my original post Prosafe connects to it which would
not be possible if the IP stack was not working at all. But the web GUI does not come up when attempting to access
with a web browser.
schumaku
Jun 28, 2021Guru - Experienced User
Recent Smart Managed Plus update switch IP stack seems to be cumbersome on the MTU - double check if there is an MTU lower than 1500 is in place on the Web browser host.
Please provide more details (e.g. the original and the current updated firmware version) if you like to bring up any kind of "warning".
- tmittelstaedtJun 30, 2021Star
You have to be kidding. I already said the laptop with the web browser on it is plugged into the ethernet switch by an ethernet cable. It is the laptop, the cable, and the switch. That is all that there is on the bench Why do you guys insist on believing the switch is in some esoteric weird configuration where I'd even be able to muck around with MTU? MTU on ethernet is 1500.
And as for the prior firmware version, there is nothing in the readme that says users should NOT be able to go directly to the latest firmware for the switch from any prior version of firmware. So unless that is the case i have done everything in the instructions for firmware version 2.06.14 and now have a switch that is no longer manageable. So a warning is justified. Update to the latest version if you dare.
- tmittelstaedtJun 30, 2021Star
Incidentally, the prior firmware was 2.06.10 I had ZERO problems upgrading to this from 2.06.08 Just used the original Internet Explorer and follow the instructions from the webinterface of the switch. It took the switch a while to apply the firmware but it worked. And the 2.06.10 firmware worked.
The 2.06.14 firmware load absolutely will kill this switch. DO NOT USE! This is the grey version 3 non-POE switch.
- schumakuJul 01, 2021Guru - Experienced User
tmittelstaedt wrote:
Why do you guys insist on believing the switch is in some esoteric weird configuration where I'd even be able to muck around with MTU?
Nobody insists here. It's just an information that some recent updates of certain hardware design model Plus switch IP stack caused a problem in case there is a lower MTU in the data path.
tmittelstaedt wrote:
MTU on ethernet is 1500.
This might be the common default, and is the standard value according to the IEEE, indeed. To many "geeks" in the net explaining non-experienced users on how to "optimize" the MTU, having to adjust the MTU to cover some strange xDSL protocol encapsulations, and much more. In my opinion, an Ethernet adapter (Mac or Win) MTU can be set to 9000 especially if heavily using storage access, e.g. by higher SMB protocol versions. For all other use case, the PMTUD will do it's job, permitting no monkey decided to block all or specific PMTUD required ICMP in the data path.
We had several community members which discovered lowered MTUs on Ethernet (on the direct cable path) as well as on WiFi adapter the last few weeks, so nothing is impossible.
C:\>netsh interface ipv4 show interfaces
Idx Met MTU State Name
--- ---------- ---------- ------------ ---------------------------
1 75 4294967295 connected Loopback Pseudo-Interface 1
...
12 35 1450 connected WiFi 2
27 25 9000 connected Ethernet 2
...Yes, I was just working on Beta testing a coming-up Netgear Plus switch model, so run a test drive on a lowered MTU on the WiFi adapter connection. And the good news is this model tested isn't affected.
Please understand this is a community, Members - especially those unpaid ones without a Netgear batch - don't need lectures on esoterics, weirdness, or what posters understand as bench testing. Let's keep this community as a friendly place. And sometimes I'm really kidding.
Related Content
- Apr 13, 2023Retired_Member
NETGEAR Academy

Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!