#1

Hi all,

Trying to get a new tower going with our first Force 300 PtP link. The link is up and running -55 RSSI and 36 SNR so seems to have good numbers. Doing a speed test from tower base (speedtest.net) gives the numbers I'd expect given the time of day and a 20MHz channel. I have two epmp 1000 AP's on the tower on different 20MHz channels than the force 300. All three radios were about at same height on top of 120' tower. Today I climbed and put a second 'client' force 300 about 10-12 feet lower on the tower than the AP's to see if I have a bad radio. Couple issues:

1.我无法通过网页管理链接的用户侧，但页面开始加载，然后只是旋转和旋转。我可以错过它没有问题。

2.(注意:我又没有测试这个新的radio located a bit lower on tower) Although I can get proper speeds connected to the switch at tower base through the link as soon as I try a speed test through a subscriber radio connected to one of the epmp 1000 APs the speeds drop to a fraction of the link capacity. Is it possible that even on different frequencies the epmp 1000 AP's can affect the force 300 link? Frequencies are not adjacent channels either. Force 300 at 5805MHz and AP's in lower 5700 range.

Any insight appreciated. I can post more relevant config info if it helps.

谢谢！

#2

更新这一点。看起来像Web页面问题加载问题可能是一个在下一个版本中修复的错误。根据新塔的一位顾客在无线电位置改变后的事情工作良好。我会尝试用更具体的更新报告，计划在那里在今天稍后做一些信号测试。希望我误判了AP和PTP无线电之间所需的物理分离。

#3

Just remember that radio waves work on the inverse square law. A little movement on a tower can make a big difference with interference. If your PTP was 2' away from an AP and you moved it to 4' ( 2 times the distance; or 2 squared) away, the AP is then seeing the PTP's power 4 times less than it was. If you moved it 10 feet away (5 times increase in distance) then the AP is seeing the PTP's power 25 times less than before.

There are too many missing variables in your posts to know if this is the case. Just throwing this out to keep in mind for future reference.

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#4

Thanks for replying, I am thinking this explains it from a technical perspective. I did a wireless link test between SU and AP at same time as doing same test between both ends of PtP link yesterday and speeds were perfect so from an RF perspective I'd say looking way better, AP link and PtP link seem to not be drowning one another out anymore. Actual speedtest.net results better but not great but that is unrelated from looking at the NMS graphs, waiting for a 24GHz link to arrive to alleviate a network bottleneck.

#5

Well still issues. I can do the wireless link tests with no problem in the web interface but not getting much for real throughput across the link. 10-15Mbps max. Signal and SNR great. I have tried setting entire link at 100Mbps as we have epmp1000 AP's at far end - just in case of a flow control issue or buffer issue or something going from a gig port to a fast ethernet port on the switching side (toughswitch 5). It's only a 20MHz channel across the ptp link though so barely (if at all) pushing a fast ethernet port. I guess next steps are to bypass and/or change out switch, try cable changes, bypass ligntning arrestors, etc. Hoping am not missing something obvious with the force 300 config. I don't think this is any different than our other towers that are all fed by cambium gear. I'll try to post back if I figure things out, just seems strange.

#6

Hi all,

我有同样的问题。

Wireless speedtest is very High (220 DL, 120 UL), i've two mikrotik bihinhd the radios and when i do a speedtest (tcp) i've very bad results (70DL, 40UL). No ethernet errors, gigabit links.

#7

The same problem with my F300s.

#8
@mjoksimovic写道：

The same problem with my F300s.

进行测试，确保您在无线电上运行4.3.1。在Mikrotik上，确保您正在运行ROS 6.44或更大。确保您使用5+ TCP流进行带宽测试。另外......请记住，这些是TDD无线电，并具有固定的DL / UL比率。

#9

一切都是如此，但没有任何帮助。不管怎么说，还是要谢谢你。

#10

Same problem with force 300 or force 180....

#11

我面临着来自各种无线电和来源的大量“噪声”（不仅5GHz）的网站上的同样问题（优秀的链接测试，但低吞吐量），解决方法（取决于案例），

- If you have proper grounding then connect everything to the ground (not only surge arrestors but switches etc) carefull of course no to have grounding loops

- 去除浪涌逮捕人。如果接地不好，那么它将“添加”电缆上的更多噪音。奇异的事情是在某些情况下，您不会在以太网上看到错误（监视/性能选项卡），但仍然吞吐量将很低。删除浪涌避雷器后，您也可能使用以太网端口速度。

- Ethernet port speed. In noisy sites, we have encountered issues with the combination of ePMP and UBNT Toughswitch. Setting both Ethernet ports on 100M instead of auto or 1G usually works.

- 在AUTO中设置无线电以太网端口，并在交换机上固定100米。我知道它听起来不逻辑，但它已经工作了。

Also we have tested expensive UTP Cable with grounding points but if the grounding of the tower is not proper then the result is even worse (ports flaping).

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#12

我有一个类似的问题......下载很棒，但上传速度很糟糕。我遵循你对消除浪涌逮捕者和沃拉的建议！
Thanks for your valuable insight.

Speed test results:

  1. 41.1Mbps下来/ 24.7Mbps Up - PowerLink直接到收音机
  2. 37.7Mbps down/18.1Mbps up - PowerLINK through 30ft cable to radio
  3. 46.3Mbps down/0.08Mbps Up.- PowerLINK through POE(connected to surge protector)和30英尺到收音机
  4. 42.2Mbps down/21.0Mbps up - PowerLINK through POE(without surge protector)和30英尺到收音机
  5. 63.2Mbps down/24.5Mbps up - TP-Link Mesh through 20ft cable to POE (without surge protector) and 30ft cable to radio
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#13

Thank you for the feedback Terry.
很高兴知道我的建议帮助了你。