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Speed limited when using 5G Modem as WAN
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Topic: Speed limited when using 5G Modem as WAN (Read 95 times)
Unnamed0
Newbie
Posts: 2
Karma: 0
Speed limited when using 5G Modem as WAN
«
on:
September 19, 2024, 09:32:00 pm »
Hi everyone,
I’ve been struggling with a strange issue for over a week now. I’m moving from a place with 1Gbps fiber to a 5G mobile network. Recently, I moved my OPNSense router to the new location to test if everything was working well, and that’s where the issue began. The download speed when connected to the 5G modem seems to be capped at around 110-120Mbps—I can’t get more than that. My upload speed is only about 60Mbps, so it's hard to tell if that’s also being limited. This wasn’t the case with 1Gbps fiber, where I consistently got around 940Mbps.
Some key details:
- 5G modem: ZTE MC889, set to bridge mode
- When the 5G modem is connected directly to my PC, speed tests show around 500Mbps down and 60Mbps up.
- When the 5G modem is connected to OPNSense and then to my PC, the speed test only shows 120Mbps down and 60Mbps up.
- The same OPNSense router worked fine when connected to the ONT in my previous place.
- Physical setup: 5G Modem -> Patch Panel -> PoE Injector -> OPNSense
- The working direct connection: 5G Modem -> Patch Panel -> PoE Injector -> PC
- Interfaces in OPNSense are all negotiated on 2.5Gbps
I’m running out of ideas and this is getting really frustrating. If anyone has any suggestions, I’d really appreciate the help!
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dseven
Full Member
Posts: 108
Karma: 15
Re: Speed limited when using 5G Modem as WAN
«
Reply #1 on:
September 19, 2024, 10:37:33 pm »
I suppose you could use `ifconfig` in a shell to verify that your WAN interface really is connected at 2500Base-T. Beyond that, I can't think of anything.....
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Unnamed0
Newbie
Posts: 2
Karma: 0
Re: Speed limited when using 5G Modem as WAN
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Reply #2 on:
September 19, 2024, 10:40:07 pm »
Yep, it is connected via 2500Base-T. It's a weird issue.. :/
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Speed limited when using 5G Modem as WAN