Help! No/Hardly any Web Traffic

RouterOS Wireless Networking
1

Hey guys,

I’ve just swapped out a wireless card in an RB532 AP, from a CM9 (Atheros, 65mW) to an NL-2511MP (Prism 1, 200mW) card.

Signals have improved, pings go thru, but thats about it. Going to web sites on the wireless hardly works, and I can’t fully login to another RB532 I’m using at home on the wireless.

Here’s the layout:
RB532 AP (NL-2511MP) ---- CPE (-67 signal) ---- RB532 router (home)

Pings from the RB532 AP are 4 - 9ms, very stable.
Telnet/Winbox to my RB532 home router connect and present me with the user/password login, but then after entering the password (telnet) it hangs. Reconnect to reattempt it, and it does the same thing again.

The RB532 AP’s resources and log look fine – it loaded the prism firmware ok, and everyone’s connecting to it, but the wireless from the AP to the customers seems unstable, not able to load web pages across it.

[admin@Windrum MT] interface wireless> print
Flags: X - disabled, R - running
0 R name=“wlan1” mtu=1500 mac-address=00:02:6F:3A:8C:F2 arp=reply-only
disable-running-check=no interface-type=Prism prism-cardtype=200mW
radio-name=“Windrum Hills” mode=ap-bridge ssid=“sherwood” area=“”
frequency-mode=regulatory-domain country=united states antenna-gain=15
frequency=2417 band=2.4ghz-b scan-list=default rate-set=default
supported-rates-b=1Mbps,2Mbps,5.5Mbps,11Mbps basic-rates-b=1Mbps
max-station-count=2007 tx-power-mode=default
periodic-calibration=default periodic-calibration-interval=60
dfs-mode=none antenna-mode=ant-a wds-mode=disabled
wds-default-bridge=none wds-default-cost=100 wds-cost-range=50-150
wds-ignore-ssid=no update-stats-interval=disabled
default-authentication=yes default-forwarding=yes default-ap-tx-limit=0
default-client-tx-limit=0 proprietary-extensions=pre-2.9.25
hide-ssid=no security-profile=default disconnect-timeout=3s
on-fail-retry-time=100ms compression=no allow-sharedkey=no

I’ve updated the RB532 AP’s firmware from 1.5 → 1.13, and RouterOS from 2.9.18 → 2.9.27. The BIOS on it used to be configured for power save CPU mode, but now I have it configured for ‘regular’.

Any ideas? :frowning:

2

Ok, so I went home to see first hand what was going on.

Most things seem to work - just not web traffic.
DNS, IRC, E-mail, and Quake2 worked fine, pings and signals looked great.

Web surfing though: connected, waiting for reply… sits there. (using Firefox 1.5.0.5)
While using Internet Explorer, I would still see about a 5 second delay, but finally it would bring up a website. Seemed a little slow, but atleast it works..sorta.

We’re going to downgrade to an earlier version unless we figure it out.

Any help is appreciated..

3

So, we downgraded back to 2.9.18 - still happens – atleast for me and maybe a few others. So far we’ve only heard good reports except for at my home.

I got to thinking and it hit me. This sounds like a low TTL value somewhere. On the AP perhaps? Nothing has changed except for the AP, when we changed cards and updated the BIOS and RouterOS both.

I’ll play around with it when I get home later.

4

Ok, fire’s out. :slight_smile:

Turns out, it was a configuration thing on my CPE (an EtherAnt II Long Range). I reset it to factory defaults and reconfigured it completely; works like a charm now with the new 2511MP card at the AP. Everyone else is working good too, unless we get a call in the near future, in which case we’ll know what to do.

Here’s wishing the 2511MP will continue to rock!