I've been having this weird issue for 6 months now and I can't figure it out.
The issue is when a certain A/C unit turns on, or if there is a thunderstorm, the internet goes out for 3 seconds or so and goes right back to normal. At first I thought it was Electrical issue, so i had electrician check entire house out, make sure no low voltage lines were near higher voltage lines, etc. I also had him run a dedicated power line to the server closet so it wouldn't be on same main service line as the A/C unit. None of that fixed the issue. Plus, everything is connected to the battery backup so a power shouldn't be an issue especially when the volt meters are rock solid with negligible fluctuation. Also, the A/C unit is about 50ft from the server closet and about 20ft from my main computer. All the network lines run away from the A/C unit since my main computer is in between the server closet (upstairs) and the A/C unit downstairs. The A/C unit is outside on a concrete slab. (The thunderstorm issue is really stumping me, especially when the thunder is way off in the distance and affects the internet)... but it's only when the switch is involved.
Equipment I have:
- Spectrum 1g internet service using their modem,
- Orbi PRO router with 3 satellites
- Netgear XS748T ProSAFE 48-Port 10-Gigabit Smart Managed Switch
- Luxul 24 port unmanaged switch 1gbe
- Cyberpower PR3000RTXL2UN | Smart App Sinewave UPS
- Cat6a run through entire house and 2 Cat7 lines
- Three 40gbe fiber lines (not connected yet)
Originally I had a Synology router mesh system, so i replaced it with Orbi... problem still persisted. Then I replaced Orbi, with Orbi PRO, problem still persisted. I had Spectrum come out and they monitored the modem and line for a week or so and detected no issues. I've also had modem replaced twice.
I plug my computer directly into the modem and problem goes away. I plug computer directly into Router, problem goes away. I plug computer into Netgear, problem re-appears. So could that Netgear switch be sensitive and picking up something? Netgear's tech support was stumped. It's an expensive switch that I purchased brand new back in Dec 2019
Should I just replace the Netgear switch with a better 10gbe switch? as well as replace the Luvul 24 port with a better switch? any recommendations? Would be nice to have all 10gbe and better. I recently purchased a SX6018 for my 40gbe lines, and was going to connect it to the Netgear 10gbe switch with 4 ports link aggregated together. But that probably won't solve the issue.
Any input, tips, hints, tricks, etc would be greatly appreciated. I downloaded WireShark in hopes to find something, but I don't know how to use it. In the Netgear logs it shows up as if the cable was unplugged and re-plugged back in quickly with messages such as "%NT_LLDP-N-LLDP_MED_TRAP: LLDP-MED: Remote MED End Point Device Disconnected on ifindex xg32." or " %NT_LLDP-N-LLDP_MED_TRAP: LLDP-MED: Remote MED End Point Device Connected on ifindex xg32." but never both "disconnected" and "connected" together... it's only one or the other which is odd...
I've also tried a few other ports on Netgear switch all with same issue...
really weird
The issue is when a certain A/C unit turns on, or if there is a thunderstorm, the internet goes out for 3 seconds or so and goes right back to normal. At first I thought it was Electrical issue, so i had electrician check entire house out, make sure no low voltage lines were near higher voltage lines, etc. I also had him run a dedicated power line to the server closet so it wouldn't be on same main service line as the A/C unit. None of that fixed the issue. Plus, everything is connected to the battery backup so a power shouldn't be an issue especially when the volt meters are rock solid with negligible fluctuation. Also, the A/C unit is about 50ft from the server closet and about 20ft from my main computer. All the network lines run away from the A/C unit since my main computer is in between the server closet (upstairs) and the A/C unit downstairs. The A/C unit is outside on a concrete slab. (The thunderstorm issue is really stumping me, especially when the thunder is way off in the distance and affects the internet)... but it's only when the switch is involved.
Equipment I have:
- Spectrum 1g internet service using their modem,
- Orbi PRO router with 3 satellites
- Netgear XS748T ProSAFE 48-Port 10-Gigabit Smart Managed Switch
- Luxul 24 port unmanaged switch 1gbe
- Cyberpower PR3000RTXL2UN | Smart App Sinewave UPS
- Cat6a run through entire house and 2 Cat7 lines
- Three 40gbe fiber lines (not connected yet)
Originally I had a Synology router mesh system, so i replaced it with Orbi... problem still persisted. Then I replaced Orbi, with Orbi PRO, problem still persisted. I had Spectrum come out and they monitored the modem and line for a week or so and detected no issues. I've also had modem replaced twice.
I plug my computer directly into the modem and problem goes away. I plug computer directly into Router, problem goes away. I plug computer into Netgear, problem re-appears. So could that Netgear switch be sensitive and picking up something? Netgear's tech support was stumped. It's an expensive switch that I purchased brand new back in Dec 2019
Should I just replace the Netgear switch with a better 10gbe switch? as well as replace the Luvul 24 port with a better switch? any recommendations? Would be nice to have all 10gbe and better. I recently purchased a SX6018 for my 40gbe lines, and was going to connect it to the Netgear 10gbe switch with 4 ports link aggregated together. But that probably won't solve the issue.
Any input, tips, hints, tricks, etc would be greatly appreciated. I downloaded WireShark in hopes to find something, but I don't know how to use it. In the Netgear logs it shows up as if the cable was unplugged and re-plugged back in quickly with messages such as "%NT_LLDP-N-LLDP_MED_TRAP: LLDP-MED: Remote MED End Point Device Disconnected on ifindex xg32." or " %NT_LLDP-N-LLDP_MED_TRAP: LLDP-MED: Remote MED End Point Device Connected on ifindex xg32." but never both "disconnected" and "connected" together... it's only one or the other which is odd...
I've also tried a few other ports on Netgear switch all with same issue...
really weird