@scottalanmiller said in SIP Phone registers no audio...:
@RamblingBiped said in SIP Phone registers no audio...:
On the remote extension side of things I shouldn't have to configure anything on the firewall if NAT is working correctly, right?
I'm unclear how NAT is involved. NAT is on the firewall you are bypassing, not INSIDE the tunnel you are in, right?
It worked with NAT enabled when I tested on my side with the VPN. I'll try disabling NAT on the extension and re-enabling the VPN.
@scottalanmiller said in SIP Phone registers no audio...:
You have NAT inside of your VPN?
This is with and without the VPN enabled now. The remote extension in the UK has no sound at all, outbound or inbound. My test extension suddenly has no outbound audio unless I forward UDP port range 10000-30000 directly to the remote phone.
@scottalanmiller said in SIP Phone registers no audio...:
How is "NAT configured"? Are you sure that RTP is going over the network?
NAT is enabled on the extension in FreePBX and I've got UDP 5060 and UDP 10000-30000 forwarded to my PBX at our firewall.
I ran wireshark from my PC, which is on the same network as our PBX, and I'm not seeing any UDP traffic in our RTP port range. On the remote extension side of things I shouldn't have to configure anything on the firewall if NAT is working correctly, right? I setup a porf forward range on the external network's firewall I'm using for testing so that it is forwarding UDP 10000-30000 directly to the remote extension. Now outbound calls are working again. I'm confused. I'm not seeing any of the RTP UDP traffic come across wireshark when I'm listening on the external network where my remote phone is connected. I do see RTP UDP traffic on my local network when I make the call to the remote extension.
@scottalanmiller said in SIP Phone registers no audio...:
How is "NAT configured"? Are you sure that RTP is going over the network?
Testing with Wireshark now.
I've got a really strange situation that I'm wracking my brain over.
I have a Yealink T23G SIP phone registering with our FreePBX server from the UK via an OpenVPN connection.
I get no audio when calls are placed or received on the phone.
Before making it's trip overseas I tested the phone and it worked here on multiple networks outside of our LAN. I have another T23G setup here for testing purposes and configured the same as the phone I sent with my end user overseas. It works as expected.
WHAT AM I MISSING?
This behavior is indicative of RTP port range being blocked, but since everything is being tunneled through a VPN that shouldn't be the case right?
For a series of practice questions/tests, check out the following:
http://www.examcompass.com/
http://www.quizlet.com
Just make sure he his looking for the material that is relevant to the current version of the test, and not older versions.
I've heard others recommend cybrary.it, but I really dislike the presenters in all of the videos I have watched from them. There are so many strange nervous ticks that I find too distracting to focus on the material being discussed.
Professor Messer's Network+ instructional video series is what I used to review before testing. He follows the CompTIA objectives very closely.
Some of the TechWise TV Networking 101 videos might be beneficial: https://www.youtube.com/playlist?list=PL2D6D953CAEEA70A6
That is horribly awesome. As soon as your truck is in working order most definitely drive it to the nearest gas station and drop a few grand on lottery tickets.
It is very likely that I'll be moving to Western Colorado in the not so distant future. Would anyone by chance have any pointers on finding work in the area? We'll be around the Rifle/Glenwood Springs area if/when we relocate. That's about an hour West of Aspen, and an hour East of Grand Junction.
Most of my initial searches are coming up with tons of interesting jobs in and around the Denver/Boulder area, but not a whole lot of System Administration or Linux Admin work in and around the West.
@Dashrender said in Windows 10 File Explorer Problems:
@RamblingBiped said in Windows 10 File Explorer Problems:
@Dashrender Not that I'm aware of. Although I think he uses the synced favorites in Firefox and Chrome. I don't believe either of those care much about what is in the Favorites folder of Window's user profiles. (I could be wrong)
True, and since you fixed it you won't be able to tell now, but I wonder if he had an error in the Windows Sync manager for Favorites (normally shows as an icon in the tray near the clock.
I had no errors showing up in logs relative to the problem I was experiencing. And I've got offline files disabled, so no syncing should have been taking place. I'm guessing it is a discrepancy in the latest Group Policy Preference I pushed (months ago...). It's really odd that he is the only person experiencing this behavior though.
--edit--
And I found and fixed the discrepancy...
@Dashrender Not that I'm aware of. Although I think he uses the synced favorites in Firefox and Chrome. I don't believe either of those care much about what is in the Favorites folder of Window's user profiles. (I could be wrong)
So, that was not the problem, but I found it! It looks like the user's profile for "Favorites" was still refering to the network location. I went in, removed the reference to favorites, and VOILA! No more stall or attempt to connect to the network share.
Thanks to @Dashrender for the registry searching recommendation.
Now I'll have to go back through my group policy settings and make sure that is corrected on my side of the pond.
@Dashrender said in Windows 10 File Explorer Problems:
I doubt it, but I'll toss out DNS - what is he using?
Does he have any static DNS entries?
What happens if you manually kill the network folder in my computer? Or is it already gone?
Does the IP or name of the network share show up anywhere in the registry?
So I found and entry under HKEY_CURRENT_USER/Network/ for the mapped drive! If I delete this entry it shouldn't do any harm to the system right?
Logically I should be able to do a registry key export for the entry, delete it in the registry, and test to see if it clears up the issue?
@Dashrender said in Windows 10 File Explorer Problems:
I doubt it, but I'll toss out DNS - what is he using?
Does he have any static DNS entries?
What happens if you manually kill the network folder in my computer? Or is it already gone?
Does the IP or name of the network share show up anywhere in the registry?
The drive is gone, it has been manually disconnected. I've also got all of these policies set up as preferences, so they should be able to revoke them and not cause any issues (assuming I understand group policy preferences correctly). When it tries to connect to the share it looks like it is just using the IP address. I've not searched the registry for the ip address yet.
@momurda said in Windows 10 File Explorer Problems:
Was this network location the default save location/Documents redirected? If so redirecting his Documents/default save location to local computer may fix the issue.
Is there a vpn setup so he can get access to the network resource, or a GPO you could apply to him after connecting the sets the offending option to "Not Configured"
or
You can remove a pc from a domain using local admin credentials. This should allow him to modify policy objects that would be uneditable using your configured domain gpos.
That is the really strange thing... I've got a policy in place for his PC that snuffs the document redirection, and ensures everything is local to his machine. It worked when he was state-side, and is suddenly causing him grief while he's overseas.
This behavior doesn't show up on any other laptops that leave the building either.
And the only problem with disjoining the domain remotely is that he doesn't have VPN access, and I'd not be able to rejoin the system. With the computer disjoined his domain account wouldn't be usable on the laptop.
Frustrating stuff.
So the problem is definitely directly related to the fact that the PC is joined to our domain AND looking for a domain network resource that is not available. I was able to create a local account for the user and the behavior did not persist with the local account.
So... Any clues on how to remotely disable a group policy remotely when the laptop has no connection to the domain? Will a locally implemented group policy override any domain group policy on a domain user account?
So I downloaded SysInternals TCPView and ran it while trying to save a test file from Notepad.exe. Lo and behold, the application tries to access the disconnected network drive via ip address over http. WHY?!?!?!?!
Any clues as to how I can stop this from happening? Any idea WHY it is trying to access a network share that has been disconnected?
So the issues seems to be network related... How I'm not sure. I have remote access to his system and I'm able to browse local directories just fine. If I open an application like notepad and attempt to save a file it hangs for around 90 seconds before opening the Save As dialog box.
I've also done the following:
-disabled Antivirus
-disabled firewall
-changed quick access to "This PC"
-disconnected all network drives
I'm currently trying the SFC / DISM "solution" right now. But the fact that this works without issue when he's disconnected from a network is really odd. And the fact that I can browse all local directories and create new folders/files directly in File Explorer without any issue is kind of strange as well.
@BRRABill said in Windows 10 File Explorer Problems:
We have a problem that sounds similar where the Wifi on the system is being used instead of the hard wired.
The Wifi isn't connected to our LAN domain. So that causes issues.
The really strange thing is he didn't have these symptoms when he was here, whether he was working on our network or not... Now that he is on another continent things are acting weird.
I'm going to work with him to establish a remote session in Windows 10 so I can do some firsthand troubleshooting to see if I can figure out what is going on...