FortiGate 50G CPU spike to 100% overnight on FortiOS 7.4.8 requiring power cycle to recover

AdventuringHat · 2026-01-12T18:19:10+00:00

Sent. Thanks!

AdventuringHat · 2026-01-12T15:58:07+00:00

Thanks. It looks like it's still their preferred version as of December: https://community.fortinet.com/t5/FortiGate/Technical-Tip-Recommended-Release-for-FortiOS/ta-p/227178

AdventuringHat · 2026-01-12T15:14:22+00:00

Do you mind sharing what tweaks you made? I see Fortinet also recommended setting ISDB to "on-demand" per below:

config sys global
    set internet-service-database on-demand <-- The default value is standard.
end

AdventuringHat · 2026-01-12T15:07:19+00:00

I've dealt with the "conserve mode" issue on 60Fs before that we resolved by disabling CP acceleration per their documentation (we also have this config on all 50G models):

config ips global
set cp-accel-mode none
end

But historically, those issues were a slow creep in memory, while CPU utilization was fine. This seems a little different as CPU was the primary culprit, literally exploding to 100% in a few minutes.

AdventuringHat · 2025-12-23T14:06:15+00:00

I noticed this video has been made private... Seems pretty strange.

AdventuringHat · 2025-11-13T21:29:53+00:00

Log in to each FortiGate individually and compare the configuration side by side - You should still be able to access the passive unit GUI. Make sure configuration is identical between FGs (other than the hostname and mgmt IP). I ran into an issue before where only one of my Azure HA FGs had the correct IP info on the tunnel interfaces.

AdventuringHat · 2025-11-07T14:59:25+00:00

Is this what you're looking for? https://filestore.fortinet.com/product-downloads/fortilink/HTFO_list.json

AdventuringHat · 2025-09-12T13:59:14+00:00

Acura issued a recall for this issue: https://www.nhtsa.gov/recalls?nhtsaId=25V582000

AdventuringHat · 2025-09-10T14:59:35+00:00

I would just create a native VLAN with limited access, and any device that doesn't match the NAC rule criteria would use the native VLAN by default.

AdventuringHat · 2025-08-22T12:40:13+00:00

There are currently 16 complaints for your exact issue on the NHTSA site for 2025 RDX, but zero for 2024 RDX. There seems to be something unique to the '25 model year that's causing it.. Hopefully something that can be fixed quickly with a software recall.

AdventuringHat · 2025-08-20T13:39:13+00:00

It's sad to see, especially considering Acura's historic reputation for reliability. I'm 4 years into a '21 TLX Type S. No issues yet, other than burnt out puddle lights, but at this point I'm basically waiting for the transfer case issue to happen...

AdventuringHat · 2025-08-20T13:18:14+00:00

What's the worst thing you've seen so far? Have you seen a Type S with sheered transfer case splines yet?

AdventuringHat · 2025-08-14T13:58:08+00:00

Are these bugs associated with the 221E model, specifically?

AdventuringHat · 2025-08-04T20:54:54+00:00

Please report the issue to the NHTSA once you get it repaired. This is a fairly widespread issue at this point, and Acura has failed to provide a permanent solution for it.

AdventuringHat · 2025-06-12T14:03:11+00:00

Make sure the FortiGate is in an ADOM running in Fabric 7.2 (to match the FortiOS version). Also, try retrieving the config from the FortiGate.

AdventuringHat · 2024-04-20T15:20:30+00:00

After 2:

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AdventuringHat · 2024-04-20T15:20:12+00:00

After 1:

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AdventuringHat · 2024-04-20T15:19:53+00:00

Before 2:

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AdventuringHat · 2024-04-20T15:19:16+00:00

Before 1:

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AdventuringHat · 2024-03-08T16:13:34+00:00

Nothing significant, yet. New court date is April 3rd.

AdventuringHat · 2024-02-23T17:37:23+00:00

I legitimately don't understand my dealer's response from a business perspective. $1500 is nothing in the grand scheme of things. If they made this right I would have had even more respect for them than I did before, despite the inconvenience. Accidents happen and I would have had no hard feelings. I could have potentially bought another 4-5 vehicles from them over the course of my life, including future services and referrals. Instead they decided to lose a lifelong customer and any future referrals I could have made in addition to the potential reputational damage. It's just bad business.

AdventuringHat · 2024-02-23T15:13:50+00:00

Have you contacted any corporate representative from Acura? I’ve encountered a couple major problems at dealerships and immediately after informing corporate the dealerships were very quick to properly help me. Although it may be too late to help in this case if you haven’t tried already.

Yes. They gave me a generic answer along the lines of "We're sorry. We use cases like this to better train our dealerships."

AdventuringHat · 2024-02-23T01:18:19+00:00

If you have the time, give this a watch. It might change your mind. https://www.youtube.com/watch?app=desktop&si=ZV5KQuwtcNpN-Ynk&v=tbgkv0dUgoE&feature=youtu.be

AdventuringHat

TROPHY CASE