Hi @Paul_Whittaker ---- A few things moving forward…
I checked our servers this morning and it looks like the mentioned diagnostics have not been received yet. Just a friendly reminder that this action will only be fulfilled when the application is active on your core machine next. I will keep an eye out.
A quick google search of “What are jumbo frames” had the following information to offer…
" A jumbo frame is an Ethernet frame with a payload greater than the standard maximum transmission unit (MTU) of 1,500 bytes. Jumbo frames are used on local area networks that support at least 1 Gbps and can be as large as 9,000 bytes."
Uses and limitations (the second paragraph sums up the concern here)…
" Enabling jumbo frames can improve network performance by making data transmissions more efficient. The CPUs on switches and routers can only process one frame at a time. By putting a larger payload into each frame, the CPUs have fewer frames to process. In return, this can reduce the amount of heat the network devices generate."
“These gains are only realized, however, if each link in the network path – including servers and endpoints – is configured to enable jumbo frames at the same MTU. Otherwise, performance may actually decrease as incompatible devices drop frames or fragment them, the latter of which can task the CPU with higher processing requirements. Enabling jumbo frames may also increase packet loss rates.”
I did some research on the Virgin media superhub and while it is unclear to me which model you are using I came across the following on the Virgin website:
Jumbo Frames causing Superhub 2ac to drop all internet access?
Jumbo frames causing superhub 2ac to disconnect internet
Being as the Netgear switch is unmanaged, I don’t believe jumbo frames are available on the unit so we need to check the settings on your core machine. Please try the following:
- Bring up the “device manager” window.
- In the list you will see to the left hand side of the window there should be a section called “network adaptors”.
- Hit the drop down arrow to reveal the subcategory.
- Right click on each of the possible selection and choose “advanced”.
- In the advanced tab verify if JUMBO frames is present and enabled in any of the possible selections.