Are you using AD DHCP server as well to assign ip from specific VLAN?

nope... not using any DHCP...

Hi sifus... need your opinion on my setup.. still an amateur in networking..
I got to know Edge Router from a friend and recommended to purchase ER-X.
End up ordered ER-X-SFP for more POE ports for my home setup..

I didnt read much about SFP and just thought that I will have more POE ports for AP and IP camera... Slowly found out that I can actually purchase a SFP for Fiber and planning to subscribe to TIME...

Will the sifus here recommend to buy the SFP Fiber module and control everything within ER-X-SFP.. Or should I use it as a router?

Thank you

If you planning to use ISP fiber directly onto your Router, you can read this topic everything is covered.

You need to purchase the GPON SFP on alibaba though, there is no ready stock on any malaysian suppliers.

This post has been edited by Gaara92: Nov 26 2021, 09:00 PM

Hi, I've been running a Ubiquiti setup at home, with ER-X (latest 2.0.9-hotfix2) as the WAN router and Edgeswitch 8-150W-PoE supplying 24V passive to the ER-X. The other equipment are Ubiquiti AP and Flex mini supplied via af/at POE. This setup has been functioning well for over a year.

The Edgeswitch is protected by UPS.

Recently I've had two power trips. After the first power trip, the ER-X became non-responsive but I managed to recover using TFTP. Somehow the ER-X settings were scrambled due to the power trip (the UPS prevented a shutdown of the EdgeSwitch and my other PoE equipment continued functioning as normal).

I just had my second trip yesterday, the ER-X didn't brick like the previous time but has been acting really strange. my IoT VLAN couldn't get DHCP leases (devices will acquire IP and then immediately release it), while my main VLAN seems to function, but with high packet loss to the Internet (pings will show 1 successful packet with 5-6 dropped packets, and this is just between the PC and the router interface). Bandwidth between two PCs on the same VLAN seems to be normal.

I had to swap back to the ISP supplied router and the network performance is as expected (Speetest reaches 90+ Mbps on a 100 Mbps link). I looked at the ER-X configuration via "show configuration" in the CLI but everything seems normal. Rebooting the ER-X does not improve matters.

It looks like the ER-X has malfunctioned but there are no useful alerts or error messages from the Web interface.

I'd like to ask, from your experience, is 24V passive PoE is susceptible to power glitches and trips, where the connected equipment will get fried somehow. So far my other af/at connected devices have not experienced any issues.

I'm now inclined to not power the ER-X via the 24V passive PoE going forward. However, getting replacement devices are difficult currently, ER-X stock seems to be exhausted. I've even checked Mikrotik but their routers are also Passive PoE powered.

Are there no af/at powered routers in a similar price range to the ER-X? Should I avoid using 24V Passive PoE to power my equipment?

Edit: Problem resolved. It wasn't the ER-X, but some misbehaving device. See Post #1148

This post has been edited by tcwan: Jan 22 2022, 11:34 AM

Er-x consume roughly around 11W limit, so there should not be an issue if keep powerup using passive 24v PoE, however, as i able to recall back, someone did give some advice do not powerup ERX using this method due to ERX unable may behave strange when there are power surge, best still use its own power adapter. its been awhile back then in FB Group Ubiquiti Professional.. but if you have UPS.. isnt it suppose functioning as normal since UPS able to provide temporary power supply to switch that powerup the erx?

Have you consider reyee / ruijie product?

I also have ERX with strange behaviour. Latest firmware as stated same like yours, but PPPoE seems like not normal. NO problem running tru TIME Isp but when using on TM /mAxis ISP, seems like it broken or malfunction. the vlan went missing if you configure without connecting any incoming internet. and also, if you did, there is no public IP receive and remain no internet access. I feel like ubiquiti abandon this edgemax series. as UniFi Series continue to receive development, Edgemax series remain the same for quite sometimes without any model refresh and no availability stock for asia distribution channel. Feeling like they will abandon this like how they abandon UVP back then.

The latest power trip was quite long and the UPS battery died. After power returned and the system powered up my ER-X started acting strange.
I'm not sure why during power trip the ER-X experienced glitch. Maybe there is still some spike that went through, or the sudden power on/off did something?

I guess the problem must be common enough that the professionals would not rely on 24V PoE to power the router.

I didn't know Ruijie is still in the Malaysian market. I heard of them some years back.

I'm on TIME so 2.0.9 firmware was ok for me.

Stock is low even for Unifi products in the US. I think it is supply chain issues that is affecting all devices.
You're right in that Edgemax is not being promoted, since the users are supposed to be techies. Ubiquiti would rather sell products with simplified web interface. I'm still not running the 6.x.x Controller software for my APs for example as it does not have the same functionality as the older version.

Edit: Problem resolved. It wasn't the ER-X, but some misbehaving device. See Post #1148

This post has been edited by tcwan: Jan 22 2022, 11:33 AM

As a followup to my posts, I tracked the problem down to a misbehaving Yeelight Homekit Hub on my IoT network. It was spewing out random packets and jamming up my IoT VLAN. After I rebooted it everthing is back to normal. The Yeelight Hub uses a simple AC/DC converter instead of the typical USB power, which makes it more susceptible to power glitches, I guess. And I didn't put it on any surge protectors before this.

Nonetheless, due to all the troubleshooting, I have changed the ER-X to use an AC adapter connected to the UPS for input power instead of 24V PoE. Hopefully it'll be more resilient against power trips as well.

Goes to show that troubleshooting network issues is not easy and can only be done when there is time. I isolated the ER-X and reset to factory defaults and restoring it to the saved config, which was working fine until I reconnected it to my PoE switch. I thought that was very strange so I started investigating the VLAN connectivity. Turned out that there were Martian packets on my IoT VLAN (the other VLANs were not affected) - I should have SSHed into the ER-X looked at the dmesg output previously instead of relying on the Web interface. I then isolated the segments to my IoT VLAN to isolate the problem, and only then was able to identify the culprit.

Bottom line, A/C powered IoT devices should be protected by either surge protectors or UPS where possible.

oh no wonder on TIME isp.

Yes, Ruijie kinda active in malaysia market since last 2 years.

The problem with ubiquiti now is that, they introduce more bugs without do some proper test. some bug not fix but fix the one that has already been fixed. really make a number of user frustrated. for example EA beta... it was ok, some issue fix, but when it become stable release, it just broken. but anyway... the UniFi line up for switches even more frustrating.
It becomes like either its in SMB segment or home user but cost wise is not really great.

what i currently like bout them is that, UDM and UDM Pro. now UDM PRo SE. at least it can really replace USG /USG Pro 4 that really not stable.

I agree on Ubiquiti bugs.

I can't afford the UDM Pro. It's too expensive for my use case. The UDM is also quite redundant, I already have my APs etc. and the Fiber termination point is not ideal for WiFi coverage.

The ER-X is actually ideal for me. Thankfully it wasn't glitched by the power trip. There really needs to be another new router solution which is in between the ER-X and the UDM Pro (Only non-Unifi solution is ER-4 but it's not worth it in terms of the specs), but so far as I've read they're only on EA in the US. I don't think we'll see any new product launch for this part of the world from Ubiquiti until the chip shortage is over.

Agree with you. New product they will launch (without us knowing, somehow it just appear in product list). Availability -None- ... just like U6 Pro. Some user get U6 Pro already. but, only like 4 units

hi all, im doing planning for my new home network.
for router which will you guys suggest to get? USG or UDM?

if i put the UDM at the living room, the coverage seem like smaller than a U6 lite.

USG is basically obsolete and not able to handle high speed WAN links especially if you enable IPS/IDS.
The only reason to get a USG is to have the pretty Ubiquiti Dashboard show your WAN information.
In any case, I suspect the USG is currently out of stock.

I don't have experience with the UDM. It seems to have stabilized somewhat after it's rocky introduction from what I've read online.
It should be able to handle IPS/IDS for up to 1 Gbps WAN links unlike the USG.
But all this is off the top of my head so you should do some googling for actual reviews.

go for UDM... USG sucks. also UDM have build in controller able manage your other AP too. as for coverage, kinda not really consistent

I beg to differ. From a home consumer point of view any usg is more than adequate. I have been using a normal router with basic firewall for decades i never see any need for proper ids/ips.
Mind you, i am running several private servers behind my good ol router.
Just my 2cent.

I think it's more of new users thinking "Oh, nice feature - IDS is something useful I should enable right? After all, it's prominently indicated in the Dashboard". Then finding out that the USG can't keep up with their bandwidth.

thanks for all the replies, I think i will go for UDM.

my home is a double storey house. for ground floor, will be putting 1x udm as the main ap for ground floor.
for second floor as there are too many walls, you guys will suggest to put 1x U6-LR or 2x U6-lite?

where to buy U6LR? ebay? Subtel also still not have it

2x U6 lite will be better... covering more dead spot.

check other local seller?

synchroweb has stock