Our solution on this board (Asus Z490 Prime) was:
Install only killer network drivers how to#
However this doesn’t fix the problem of having no network on reboot for those who already have the older boards, so after a lot of digging we found a solution for our Asus Z490 Prime test board How to fix it:
Install only killer network drivers driver#
Consumers experiencing this issue should ensure they have the latest software driver and associated firmware installed and can refer to for compatible switches and routers to ensure 2.5Gb/s connectivity.” We identified an IEEE spec variance in the Intel Ethernet Controller I225 that results in performance degradation when paired with some 2.5GbE switches and routers. “Intel is committed to delivering the highest levels of product quality and has already corrected the issue in the latest production version of the silicon. The following was Intel’s official response on the matter: This new B2 stepping has indeed been featured on several Z490 motherboards however, as I mentioned above, our sources seem to indicate that the issue isn’t fully resolved. Intel officially responded to us on the matter, claiming that the latest production version of the I225-V controller silicon known as ‘V2’ was already in production which has been integrated on several Z490 motherboards now shipping in retail channels. A list of mitigations with the current silicon of the I225-V controller was mentioned by Intel which simply advises users/OEMs to set the Controller link to operate at 1 Gb/s which was far less than what Intel had advertised.
Last month, a report emerged that the controller had a built-in flaw that led to packet loss and reduced network performance in the range of 1-10 Mb/s. It’s now well known there is a major flaw within the Intel I225-V networking chip, which Intel claims to have fixed with a newer revision which was shipping in Z490 motherboards that are now available on retail shelves, however, test results from our sources show that the issue still persists and several Z490 motherboards featuring the Intel I225-V networking chip could remain affected and unable to deliver the advertised networking speeds that a 2.5GbE networking controller should deliver, and failing to reconnect upon rebooting the machine. Not our usual subject matter but having had issues with this one ourselves we decided to try fixing the issue! ( our solution Guide is lower down the page) Intel I225-V 2.5GbE Networking Issues Still Persist, Several Z490 Motherboards Seemingly Affected
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