Tutor
•
5 Messages
Slow speeds while in DMZ+ mode
I have tried three different routers and all of them run at 60 mbps down and around 220 up. What is wrong with my Pace 5268AC.
First modem:
WNDR3700 - returned
Second Modem:
ASUS RT68U - still have and running dd-wrt
Third and final which I'm keeping:
pfsense box running on a quad core i5 with two Intel Gigabit PCI Network cards.
Long and short is I tried to put all of these in cascaded router mode / DMZ+ and everyone of them gave me the same speeds. However if I hook up directly to the Pace I get 950 +/- down and 950 +/- up.
What gives? I have seen other people with the same problem. The Pace's firewall settings are horrendous, plus I can't monitor my bandwidth using NetFlow like I can with my pfsense. I'm very close to cancelling AT&T and going back to Comcast.
Thanks,
Chris P.
ATTHelp
Community Support
•
231.7K Messages
7 years ago
Hi,
Try checking the duplex setting, see if that is the cause of the issue you are experiencing,
Tony–AT&T Community Specialist
0
0
lildevild
Tutor
•
5 Messages
7 years ago
Tony,
Thanks I did, tried to put on Auto-Negotiate and chose 1000 Full Duplex, didn't make a difference. I also ran an iperf test on my pfsense router and all the various clients I have hooked up and am getting between 650-750 Mbps between clients. However speedtest.net and att.com/speedtest both are only showing like 60 Mbps down and 225 or so up. I am using all CAT 6 Cable, that was the first thing I checked.
Thanks,
Chris
0
0
fdaria
Tutor
•
2 Messages
6 years ago
Have you guys fixed this issue? I'm facing this issue now. I have the gigabit internet as well. I tried different combinations and everytime, the dmzplus mode drops the speed to 50mbps down and ~200mbps up. I've tried all suggested workarounds (ipv6 disabled, wireless turned off, auto-detect to 100Base and back to auto-detect). All this didn't do any good.
I tried doing this with my mac and my nighthawk router like this:
- Mac-Nighthawk-Pace (with Nighthawk as DMZ) = no good
- Mac-Pace (with Mac as DMZ) = no good
- Mac-Nighthawk-Pace (no DMZ) = I get gigabit speeds
- Mac-Pace (no DMZ) = I get gigabit speeds
Something is off with Pace DMZ+ mode that causes the internet speed to slow down to just ~50mbps.
0
GbitNOT
Tutor
•
2 Messages
6 years ago
Same issue here, please tell me there's a fix in the works.
0
Adam1203
Contributor
•
1 Message
5 years ago
Same EXACT issue here. I just got off the phone with support, no help at all. I did a MAC clone and verified that out of DMZ+ mode, I get full GBit. As soon as I enable DMZ+, I'm locked at 50Mb/s down.
EDIT: Per this thread comment on Reddit, https://www.reddit.com/r/ATT/comments/9nhajt/5268ac_issue_information/e96ykzd, I contacted support. Unfortunately, they do not have any other devices available other than the 5268 (go figure). They're sending me a new one. Hopefully it doesn't have the same firmware.
0
worthington_j
Tutor
•
4 Messages
5 years ago
I'm seeing the same issue and I'm 99% sure it's due to an update. I had been running my own router behind the AT&T gateway for several months without any issues. I had to make a change in the AT&T Gateway but the UI page would never fully load to allow me to make my change. I had to reset the AT&T gateway and it after the reboot, it rebooted a couple more times. After I added my router back into the DMZ my speeds dropped to 50mbps. If I leave my router double NAT'd I get 900mbps.
If someone finds a resolution to this issue please let me know. I cannot deal with AT&T support because it's a waste of time. If this issue keeps up I will be forced to cancel my uverse.
Model: 5268AC
Ver: 11.1.0.531418-att
0
mcowart
Tutor
•
6 Messages
5 years ago
Wow, and I just thought it was me. DMZ+ has been working fine for years with my pfSense setup, and just in the last few days it's been capped at 50. Sure enough if I Double NAT it now I'm getting full speed. This is absolutely unacceptable.
0
capyman
Tutor
•
5 Messages
5 years ago
Same here. I usually get 850 mbps give or take, as soon as I enable DMZplus I get capped at 50 mbps. It was working for me for at least a year just fine. So I agree it must be due to a pace modem firmware update. It started happening 2-3 weeks ago for me.
Is there any way to revert to a previous pace modem firmware?
Customer service gave me $50 credit adjustment this month and will be calling ATT every month expecting the credit adjustment until this issue is resolved.
I first found the issue when I couldn't transfer files over SCP from home to my cloud servers (AWS and Linode). My SSH connections get killed if I try transferring any files larger than 5MB! It's such a pain.
Here are some MTR reports which made me aware the issue was on my side.
1 Attachment
mtrlog.jpg
0
0
Scottrdu
Contributor
•
3 Messages
5 years ago
Me too!!! Argg I just wasted an hour or so to figure out the dmz plus is what is limiting my bandwidth to 50mbs. If I remove it then I get like 800.
I guess I gotta call their technical support when I get some time.
0
0
nag5662
Contributor
•
2 Messages
5 years ago
I confirm I see the same issue here with edgerouter 4 behind 5268AC with firmware 11.1.0.531418-att. DL capped at around 50 Mbps when DMZ+ enabled, and ~ 850 Mbps otherwise (fiber connection).
0
0