Huge performance impact when Time Capsule is on Satellite?

Quick background:

I have 1 RBR-50 in living room and 2 RBS-50 in 2 guest rooms. All are in latest firmware.

Time Capsule is wired to one RBS-50.

I have 3 MacBook, wireless only. MacBookPro (late 2013) connects to the same RBS-50 which Time Capsule connects to. MacBook (2015) conencts to RBR-50, MacBookPro (2018, touch bar) connects to another RBS-50. All are backed up to Time Capsule, daily backup in different time.

I noticed the MacBookPro (2018) is backing up extremely slow compared to the other 2 laptops, it takes 20 mins to complete daily incremenent backup or 10 hours after an OS upgrade, while the other 2 laptops take only 5 mins for daily incremenent backup and 20-30 mins after an OS upgrade. When it is backing up, in Activity Monitor / Network, I noticed its network send/receive speed is also much slower than the other two, (300KB/s vs 28MB/s)

Internet speed on this MacBookPro looks pretty good ie 500Mbps on speedtest.net.

Is it because of number of hops when it tries to reach Time Capsule?

MacBookPro -> RBS-50-1 -> RBR-50 -> RBS-50-2 -> Time Capsule

While for the other two:

MacBook -> RBR-50 -> RBS-50-2 -> Time Capsule

MacBookPro -> RBS-50-2 -> Time Capsule

Adding one extra hop will cause so many latency? Or something wrong in the communication between 2 Orbi Satelliates?

I have disabled daisy chain, will it help?

Thanks

13 Replies

SW_
Prodigy
Oct 31, 2019
Here is one thing that you can check quickly.

Launch "AirPort Utility App" from your iPhone and check Time Capsule's "Connection" state. If it says anything other than "Excellent", that's the issue. In that case, just plug the Ethernet jack into the right port in the back the Time Capsule, i.e. until "Connection" says "Excellent".
- sh2sg
  Apprentice
  Oct 31, 2019
  SW_ wrote:
  Here is one thing that you can check quickly.
  
  Launch "AirPort Utility App" from your iPhone and check Time Capsule's "Connection" state. If it says anything other than "Excellent", that's the issue. In that case, just plug the Ethernet jack into the right port in the back the Time Capsule, i.e. until "Connection" says "Excellent".
  Time Capsule is fine, the other two laptops don't have such problem when doing Time Machine backup.
  - SW_
    Prodigy
    Oct 31, 2019
    I had a similar issue with my TC because of half-duplex connection instead of full-duplex.
    
    Di you get similar results when TC is connected to RBR50 instead of RBS50?
Retired_Member
Nov 08, 2019
sh2sg wrote:
. All are in latest firmware.

what does this mean?

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Huge performance impact when Time Capsule is on Satellite?