Resolved Slow internet from TP-Link powerline adapter

[QCassidy352]

I'm hoping someone can help me figure out a problem with my home network. Here's the setup:

• Xfinity internet with 400 Mbps download speeds
• Arris Surfboard 6183 modem
• TP-Link AC2600 router broadcasting both 2.4 ghz and 5 ghz wireless networks (multiple clients on both networks)
• TP-Link AV1000 powerline adapter connected to gigabit Ethernet port on the router
• HP Xeon workstation (not sure the exact model, but newer) connecte to the other end of the AV1000 (one room away from the router)

Wireless clients on both the 2.4 and 5 ghz networks behave as you'd expect, with download speeds on the 5 ghz network routinely reaching 400 Mbps. But the Xeon workstation cannot get above 50-60 Mbps. This is not a theoretical problem, as it needs 100+ Mbps to adequately do its job (medical imaging).

I guess the possible trouble spots are:

• ethernet port of router
• powerline adapter(s) (hardware or connection)
• ethernet port of Xeon workstation

any suggestions for troubleshooting? Thanks!

 

[Juicy Box]

TP-Link AV1000 powerline adapter connected to gigabit Ethernet port on the router

I would bet that this is the reason for the slow internet.

Even in the best possible conditions, there will be a performance loss when using Powerline adapters.

The easiest way to troubleshoot this is to eliminate the Xeon Workstation and Router, is by temporarily running a long ethernet cable from the router to the workstation and test the connection. If your speeds look good, it is most likely the Powerline adapter.

 

[QCassidy352]

Good idea, I should’ve thought of that. I’ll do so and report back!

 

[QCassidy352]

Update: the direct connection helped a lot. The VPN the HP is using still slows the network connection down from ~400 to ~150, but that should be good enough and way better than the ~60 we were getting with the power line adapter. Thanks, @vertical smile !