Network extension caused network access to slow down or fail.

Hi,
On macOS 26.4 Beta (25E5218f) (macOS Tahoe 26 Developer Beta ), the network filter causes network failures or slowdowns. This manifests as Chrome failing to access websites, while Safari can access the same websites without issue. The affected websites can be pinged locally.
My situation is similar to this situation.The same question link is: https://github.com/objective-see/LuLu/issues/836
Have you been paying attention to this issue? Hopefully, it can be fixed in the official release.
Thank you.

Answered by DTS Engineer in 877495022
Hopefully, it can be fixed in the official release.

Rather than hope it’s better to actually file a bug about the issue. I followed the link you posted and I don’t see a bug number there, so it’s not clear whether anyone has done that yet.

If this is your product, I encourage you to file a bug about the issue yourself. See Bug Reporting: How and Why? for lots of detailed advice on how to do that.

If you’re just someone using this product, I recommend that you ask the developer if they’ve filed a bug.

Either way, please post the bug number here, just for the record.

Share and Enjoy

Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

Hopefully, it can be fixed in the official release.

Rather than hope it’s better to actually file a bug about the issue. I followed the link you posted and I don’t see a bug number there, so it’s not clear whether anyone has done that yet.

If this is your product, I encourage you to file a bug about the issue yourself. See Bug Reporting: How and Why? for lots of detailed advice on how to do that.

If you’re just someone using this product, I recommend that you ask the developer if they’ve filed a bug.

Either way, please post the bug number here, just for the record.

Share and Enjoy

Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

I’ve just learnt about a bug similar to this for iOS 26.4b2 (FB22056740). It’s not clear as to whether this is the same issue so, if you’re having a problem on macOS 26.4 beta, I definitely encourage you to file a bug about it.

And if you do file a bug, please post the bug number here, just for the record.

Share and Enjoy

Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

Oh, one other thing. I’ve corrected a typo in this thread’s title. The original title said “Network expansion”, which was kinda confusing )-:

Share and Enjoy

Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

Network extension caused network access to slow down or fail.
 
 
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