I am a brand new member and this is my first post.

I have an issue that has me completely stumped and I'm not sure where to look next. I'm getting some gateway timeout errors on websites that we hit normally. I do realize that most gateway timeout errors are the fault of the destination host but in this case I think my network is playing a part.

First, we can't access http://acrobaticarts.ca/ from within our network. If I take my laptop home or go to a coffee shop I have no problem accessing it. I contacted Cisco and we put my computer ip address and the domain name in the WSAv bypass list and it still didn't work. We looked at the capture log and saw it bypassed. I was able to get to blocked websites so I know the WSA wasn't filtering my IP. Basically the only thing I've ruled out is that it is not the WSA or a specific machine.

Second, we have two vendors that we use. Listen 360 and Vendini. We get e-mails from them both with links to various websites (mostly our own). When we click on those links within our network we get the gateway timeout error. If I click on the exact same link from the exact same e-mail outside of the network it works just fine. I do know the Vendini link routes through their tracking system to the final destination. I've clicked on links in other e-mails and they work just fine.

Thirdly, we can't send e-mails to Earthlink addresses. Ok, we can send them but they aren't receiving them. I contacted Cisco and we traced everything and looked in the ESAv to make sure nothing was messed up. We verified that we are simply not getting a response back in the expected time from.

I was in our fitness center the other day and couldn't get on the internet. I looked at our Meraki dashboard and noticed some DNS errors. I rebooted both of our virtual Domain Controllers and rebooted the AP several times and it finally started working again. We are using Googles DNS servers.

We have two internet feeds and most of the time we aren't anywhere near our bandwidth limit. My equipment is brand new. We just went live with our network in June so the equipment is about 6 months old. I'm using Meraki switches and a Cisco ASA 5515. I have two ISPs and the issues exist with both of them.

I'm not sure if my issues are even related but I'm thinking that they are. They all have to deal with a delay in response time. Any help would be appreciated. I've ran Wireshark but don't really know how to read it.

@Dashrender

We are a community center so we are typically open from 5:00 AM - 10:00 PM. I think I can do it tomorrow without to much interruption.

@scottalanmiller

That's amazing. I can get the ERPro-8 for two hours worth of support on my ASA!

@scottalanmiller

I'm almost there with you. I used UBNT APs at my last job and loved them. I purchased a switch but it hadn't arrived when I left. Here at my new job we just built out our network and I let that vendor chose the hardware because of how complicated everything was. I definitely chose the wrong vendor.

How does the UBNT firewall stack up to other firewalls for security? As a Jewish organization we are always a target. I can't compromise on security. While I'm pretty sure I won't replace these with Cisco equipment I need to make sure that whatever I replace it with is very secure.

@Dashrender

That's what I'm beginning to think. Unfortunately I don't know the ASA very well. I'll need to bring someone in.

@scottalanmiller

nslookup resolves correctly.

@Dashrender

Default gateway is the firewall. It works for all websites but these few.

@Dashrender said:

24/7 sho

I tried this and I had no problem getting to any of these sites. It appears the problem is within my network.

@Dashrender

We are a community center so we are typically open from 5:00 AM - 10:00 PM. I think I can do it tomorrow without to much interruption.

@Dashrender

Good idea. I'll try and do this as soon as I can without causing an interruption. I might be able to do it over the weekend.

@StrongBad

Not that I'm aware of. We have made some "unrelated" changes to the firewall in the last couple of months but I don't they have corresponded with my issues.

I'm having some issues with dates though. They didn't report the e-mail issues right away and we just started using acrobaticarts.ca.

@StrongBad

Thank you