Slow Tailscale speed

3 years ago by Targox to c/selfhosted

I'm only getting an average of 9.21 Mbps from my Synology NAS to my remote Mac device. My NAS is connected to LAN with an internet speed of +-300Mbps. I don't expect 300Mbps through Tailscale, but a 80-100Mbps would suffice.

Both are on 1.44.0
It's a direct connection, no derp
Average ping is 33ms

I'm clueless, anyone? Thanks

ThreeHalflings 6 points 3 years ago

This may be a silly question, unless is isn't. Are you sure that your maximum upload speed is 300Mbps? Your maximum upload speed can be different to your maximum download speed. https://speedof.me can help you check.

If that's not the answer, sorry for possibly being overly simple, but some people might not realise.

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HolyHell 3 points 3 years ago

300Mbps is definitely your upload and not download speed?

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carl_dungeon 2 points 3 years ago

Yeah as others have said, unless you have a symmetric connection, 300 is download. Cable internet very often has good downstream and lame outbound. My parent’s comcast is something like 300/12 which would be in line with what you’re seeing. FIOS in my area is all symmetrical so gigabit is 1000mbps both ways.

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icy_sweet 1 point 3 years ago

Have you tried using ZeroTier? I don‘t have much experience using Tailscale but have been using ZeroTier for two years now without any problems. Runs great on Synology

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Targox 1 point 3 years ago

I'd love to try ZeroTier but sadly, my DS220j doesn't support Docker and therefore ZeroTier. As far as I know they also don't have a package file that I could manually install on my Synology.

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kn100 1 point 3 years ago

on either machine, does tailscale status show your connection passing through a DERP relay? If so, you should investigate why you're going through DERP and try to resolve that.

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Luccajan 1 point 3 years ago

I have no experience with NAS but does it have an HDD? Maybe the read/write speed is the bottleneck. Again take this with a grain of salt since I do not have any experience with running a NAS.

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Targox 1 point 3 years ago

HDD's can actually go a lil beyond 1000Mbps so that's not it :) And at home it does the job just fine

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d4nm3d 1 point 3 years ago

The tailscale guys are very responsive if you send them a question.. It's meant to be P2P but when it can't i believe it uses some kind of relay proxy server so at a guess i'd say it's that. Personally i run a subnet router on my LAN and not on individual devices.. maybe you could try that instead?

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Targox 1 point 3 years ago

Thanks for the tip!

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mrmeow35 0 points 3 years ago

I’ve been trying to set up a subnet router, but can’t seem to be able to get the hang of it. Are there any good tutorials, or tips you could give me? (Sorry to bug you)

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bootyberrypancakes 1 point 3 years ago

Do you get better speeds transferring over Tailscale when both machines are on the same LAN? I have no problems pushing 400mbit over Tailscale but it does use a ton of CPU so maybe the Synology CPU is the bottleneck if you have similar speeds after eliminating your internet connection.

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