Looks like 6.2.4 is out!

[tanr]

https://docs.fortinet.com/document/fortigate/6.2.4/fortios-release-notes/760203/introduction-and-sup...

[mjcrevier · Accepted solution]

If you're having connectivity issues, check if DoS sensor is enabled. If so, disable it completely. That should resolve the issue you're seeing.

[Toshi_Esumi · Accepted solution]

I had a conversation with an FTNT SE today about 6.2.4 problems. The major issues seem to boil down to below three issues:

1. DoS policy issue: It's still an known issue with 6.2.4 and not resolved, which is in the release notes.

2. IPS engine keeps crashing. A new engine is planned to be released soon. Then this would be resolved.

3. WAD memory leak issue is still not 100% resolved.

6.2.5 will fix these issues and come out relatively shortly although he couldn't tell me any target date. He recommended to wait for 6.2.5. But likely 6.0.10 comes out before 6.2.5.

By the way, FMG/FAZ 6.2.4 was to just fix vulnerabilities. They wanted to release it ASAP without waiting for bug fixes. Then 6.2.5 came out right after that with bug fixes. It was just coincidental they came out one after another.

[Toshi_Esumi]

GUI slowness is apparently with Firefox (mine is 68.8.0). Chromium  81.0.4044.138 doesn't have the slowness.

Also I set up a VIPs (vipgrp: one for ICMP, another for TCP2200->22) to see it would break after some period.

[TheJaeene]

toshiesumi wrote:

Also did anyone else notice GUI is slower ("circling" a while when dig into deeper)? It maybe because my 50E is not so powerful. But I didn't notice it when it was running 6.0.9. I saw a similar comment at Reddit as well.

Yep noticed that too, the GUI often seems "stuck" even if the CPU is idle.

[James_G]

toshiesumi wrote:

Also did anyone else notice GUI is slower ("circling" a while when dig into deeper)? It maybe because my 50E is not so powerful. But I didn't notice it when it was running 6.0.9. I saw a similar comment at Reddit as well.

Toshi, are you making comparison between 6.0.9 and 6.2.4 re performance, or did you use 6.2.3 before

I use 6.2.3 everywhere and always thought GUI is not as fast as 6.0.x, think I would loose my cool if it got worse

[visk]

on 60F - for now some VIP stopped working, some VPN stopped working.

on 100D after 12 hours Internet interface (on VLANs) also stopped working.

[peterse]

What release would you recommend as most stable atm? We went from 6.0.9 with RDP disconnection bug, otherwise it worked fine.

Any experience with 6.4.0?

[TheJaeene]

We have many Boxes running 6.2.3 without any Issues here. So I think that´s the way to go right now.

6.4.0 is running quite stable for the first GA, although the release was rushed to market. (FOS 6.4.1 is knocking at the door already). But I wouldnt recommend using 6.4.0 in productive environments.

[peterse]

Downgrading from 6.2.4 to 6.2.3 will cause configuration loss, or is it safe?

Or shall I downgrade to 6.2.3 and restore the 6.2.3 config?

When comparing both configs, I see a difference only in ENC password and certificate files.

[TheJaeene]

peterse wrote:

Downgrading from 6.2.4 to 6.2.3 will cause configuration loss, or is it safe?

Or shall I downgrade to 6.2.3 and restore the 6.2.3 config?

When comparing both configs, I see a difference only in ENC password and certificate files.

I downgraded a Box that was running quite a lot of Services (VPN, WLC, FSSO, Tokens) and the only thing that the diag deb config-error-log brought up was the invalid WTP Profiles for  FAP431F e.g.

Running fine after downgrading to 6.2.3 for about 12 Hours now.

[emnoc]

A basic FGT was updated last night outside of it took quite a long time to be able to login back in, the upgrade went with 0 issues

Ken Felix

[Sebastiaan_Koopmans]

We have upgraded our 300D and 500E Clusters and running FOS 6.2.4 now for 4 days without any issue!